ID CVE-2016-9602
Summary Qemu before version 2.9 is vulnerable to an improper link following when built with the VirtFS. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host.
References
Vulnerable Configurations
  • QEMU
    cpe:2.3:a:qemu:qemu
  • QEMU 0.1
    cpe:2.3:a:qemu:qemu:0.1
  • QEMU 0.1.0
    cpe:2.3:a:qemu:qemu:0.1.0
  • QEMU 0.1.1
    cpe:2.3:a:qemu:qemu:0.1.1
  • QEMU 0.1.2
    cpe:2.3:a:qemu:qemu:0.1.2
  • QEMU 0.1.3
    cpe:2.3:a:qemu:qemu:0.1.3
  • QEMU 0.1.4
    cpe:2.3:a:qemu:qemu:0.1.4
  • QEMU 0.1.5
    cpe:2.3:a:qemu:qemu:0.1.5
  • QEMU 0.1.6
    cpe:2.3:a:qemu:qemu:0.1.6
  • QEMU 0.2
    cpe:2.3:a:qemu:qemu:0.2
  • QEMU 0.2.0
    cpe:2.3:a:qemu:qemu:0.2.0
  • QEMU 0.3
    cpe:2.3:a:qemu:qemu:0.3
  • QEMU 0.3.0
    cpe:2.3:a:qemu:qemu:0.3.0
  • QEMU 0.4
    cpe:2.3:a:qemu:qemu:0.4
  • QEMU 0.4.0
    cpe:2.3:a:qemu:qemu:0.4.0
  • QEMU 0.4.1
    cpe:2.3:a:qemu:qemu:0.4.1
  • QEMU 0.4.2
    cpe:2.3:a:qemu:qemu:0.4.2
  • QEMU 0.4.3
    cpe:2.3:a:qemu:qemu:0.4.3
  • QEMU 0.4.4
    cpe:2.3:a:qemu:qemu:0.4.4
  • QEMU 0.5.0
    cpe:2.3:a:qemu:qemu:0.5.0
  • QEMU 0.5.1
    cpe:2.3:a:qemu:qemu:0.5.1
  • QEMU 0.5.2
    cpe:2.3:a:qemu:qemu:0.5.2
  • QEMU 0.5.3
    cpe:2.3:a:qemu:qemu:0.5.3
  • QEMU 0.5.4
    cpe:2.3:a:qemu:qemu:0.5.4
  • QEMU 0.5.5
    cpe:2.3:a:qemu:qemu:0.5.5
  • QEMU 0.6.0
    cpe:2.3:a:qemu:qemu:0.6.0
  • QEMU 0.6.1
    cpe:2.3:a:qemu:qemu:0.6.1
  • QEMU 0.7.0
    cpe:2.3:a:qemu:qemu:0.7.0
  • QEMU 0.7.1
    cpe:2.3:a:qemu:qemu:0.7.1
  • QEMU 0.7.2
    cpe:2.3:a:qemu:qemu:0.7.2
  • QEMU 0.8.0
    cpe:2.3:a:qemu:qemu:0.8.0
  • QEMU 0.8.1
    cpe:2.3:a:qemu:qemu:0.8.1
  • QEMU 0.8.2
    cpe:2.3:a:qemu:qemu:0.8.2
  • QEMU 0.9.0
    cpe:2.3:a:qemu:qemu:0.9.0
  • QEMU 0.9.1
    cpe:2.3:a:qemu:qemu:0.9.1
  • QEMU 0.9.1-5
    cpe:2.3:a:qemu:qemu:0.9.1-5
  • QEMU 0.10.0
    cpe:2.3:a:qemu:qemu:0.10.0
  • QEMU 0.10.1
    cpe:2.3:a:qemu:qemu:0.10.1
  • QEMU 0.10.2
    cpe:2.3:a:qemu:qemu:0.10.2
  • QEMU 0.10.3
    cpe:2.3:a:qemu:qemu:0.10.3
  • QEMU 0.10.4
    cpe:2.3:a:qemu:qemu:0.10.4
  • QEMU 0.10.5
    cpe:2.3:a:qemu:qemu:0.10.5
  • QEMU 0.10.6
    cpe:2.3:a:qemu:qemu:0.10.6
  • QEMU 0.11.0
    cpe:2.3:a:qemu:qemu:0.11.0
  • QEMU 0.11.0-rc0
    cpe:2.3:a:qemu:qemu:0.11.0:rc0
  • QEMU 0.11.0 release candidate 1
    cpe:2.3:a:qemu:qemu:0.11.0:rc1
  • QEMU 0.11.0 release candidate 2
    cpe:2.3:a:qemu:qemu:0.11.0:rc2
  • QEMU 0.11.0-rc0
    cpe:2.3:a:qemu:qemu:0.11.0-rc0
  • QEMU 0.11.0-rc1
    cpe:2.3:a:qemu:qemu:0.11.0-rc1
  • QEMU 0.11.0-rc2
    cpe:2.3:a:qemu:qemu:0.11.0-rc2
  • QEMU 0.11.1
    cpe:2.3:a:qemu:qemu:0.11.1
  • QEMU 0.12.0
    cpe:2.3:a:qemu:qemu:0.12.0
  • QEMU 0.12.0 release candidate 1
    cpe:2.3:a:qemu:qemu:0.12.0:rc1
  • QEMU 0.12.0 release candidate 2
    cpe:2.3:a:qemu:qemu:0.12.0:rc2
  • QEMU 0.12.1
    cpe:2.3:a:qemu:qemu:0.12.1
  • QEMU 0.12.2
    cpe:2.3:a:qemu:qemu:0.12.2
  • QEMU 0.12.3
    cpe:2.3:a:qemu:qemu:0.12.3
  • QEMU 0.12.4
    cpe:2.3:a:qemu:qemu:0.12.4
  • QEMU 0.12.5
    cpe:2.3:a:qemu:qemu:0.12.5
  • QEMU 0.13.0
    cpe:2.3:a:qemu:qemu:0.13.0
  • QEMU 0.13.0 release candidate 0
    cpe:2.3:a:qemu:qemu:0.13.0:rc0
  • QEMU 0.13.0 release candidate 1
    cpe:2.3:a:qemu:qemu:0.13.0:rc1
  • QEMU 0.14.0
    cpe:2.3:a:qemu:qemu:0.14.0
  • QEMU 0.14.0 release candidate 0
    cpe:2.3:a:qemu:qemu:0.14.0:rc0
  • QEMU 0.14.0 release candidate 1
    cpe:2.3:a:qemu:qemu:0.14.0:rc1
  • QEMU 0.14.0 release candidate 2
    cpe:2.3:a:qemu:qemu:0.14.0:rc2
  • QEMU 0.14.1
    cpe:2.3:a:qemu:qemu:0.14.1
  • QEMU 0.15.0
    cpe:2.3:a:qemu:qemu:0.15.0
  • QEMU 0.15.0 release candidate 1
    cpe:2.3:a:qemu:qemu:0.15.0:rc1
  • QEMU 0.15.0 release candidate 2
    cpe:2.3:a:qemu:qemu:0.15.0:rc2
  • QEMU 0.15.1
    cpe:2.3:a:qemu:qemu:0.15.1
  • QEMU 0.15.2
    cpe:2.3:a:qemu:qemu:0.15.2
  • QEMU 1.0
    cpe:2.3:a:qemu:qemu:1.0
  • QEMU 1.0 release candidate 1
    cpe:2.3:a:qemu:qemu:1.0:rc1
  • QEMU 1.0 release candidate 2
    cpe:2.3:a:qemu:qemu:1.0:rc2
  • QEMU 1.0 release candidate 3
    cpe:2.3:a:qemu:qemu:1.0:rc3
  • QEMU 1.0 release candidate 4
    cpe:2.3:a:qemu:qemu:1.0:rc4
  • QEMU 1.0.1
    cpe:2.3:a:qemu:qemu:1.0.1
  • QEMU 1.1
    cpe:2.3:a:qemu:qemu:1.1
  • QEMU 1.1 release candidate 1
    cpe:2.3:a:qemu:qemu:1.1:rc1
  • QEMU 1.1 release candidate 2
    cpe:2.3:a:qemu:qemu:1.1:rc2
  • QEMU 1.1 release candidate 3
    cpe:2.3:a:qemu:qemu:1.1:rc3
  • QEMU 1.1 release candidate 4
    cpe:2.3:a:qemu:qemu:1.1:rc4
  • QEMU 1.1.0
    cpe:2.3:a:qemu:qemu:1.1.0
  • QEMU 1.1.1
    cpe:2.3:a:qemu:qemu:1.1.1
  • QEMU 1.1.2
    cpe:2.3:a:qemu:qemu:1.1.2
  • QEMU 1.2.0
    cpe:2.3:a:qemu:qemu:1.2.0
  • QEMU 1.2.1
    cpe:2.3:a:qemu:qemu:1.2.1
  • QEMU 1.2.2
    cpe:2.3:a:qemu:qemu:1.2.2
  • QEMU 1.3.0
    cpe:2.3:a:qemu:qemu:1.3.0
  • QEMU 1.3.1
    cpe:2.3:a:qemu:qemu:1.3.1
  • QEMU 1.4.0
    cpe:2.3:a:qemu:qemu:1.4.0
  • QEMU 1.4.1
    cpe:2.3:a:qemu:qemu:1.4.1
  • QEMU 1.4.2
    cpe:2.3:a:qemu:qemu:1.4.2
  • QEMU 1.5.0
    cpe:2.3:a:qemu:qemu:1.5.0
  • QEMU 1.5.0 release candidate 1
    cpe:2.3:a:qemu:qemu:1.5.0:rc1
  • QEMU 1.5.0 release candidate 2
    cpe:2.3:a:qemu:qemu:1.5.0:rc2
  • QEMU 1.5.0 release candidate 3
    cpe:2.3:a:qemu:qemu:1.5.0:rc3
  • QEMU 1.5.1
    cpe:2.3:a:qemu:qemu:1.5.1
  • QEMU 1.5.2
    cpe:2.3:a:qemu:qemu:1.5.2
  • QEMU 1.5.3
    cpe:2.3:a:qemu:qemu:1.5.3
  • QEMU 1.6.0
    cpe:2.3:a:qemu:qemu:1.6.0
  • QEMU 1.6.0 release candidate 1
    cpe:2.3:a:qemu:qemu:1.6.0:rc1
  • QEMU 1.6.0 release candidate 2
    cpe:2.3:a:qemu:qemu:1.6.0:rc2
  • QEMU 1.6.0 release candidate 3
    cpe:2.3:a:qemu:qemu:1.6.0:rc3
  • QEMU 1.6.1
    cpe:2.3:a:qemu:qemu:1.6.1
  • QEMU 1.6.2
    cpe:2.3:a:qemu:qemu:1.6.2
  • QEMU 1.7.0
    cpe:2.3:a:qemu:qemu:1.7.0
  • QEMU 1.7.1
    cpe:2.3:a:qemu:qemu:1.7.1
  • QEMU 1.7.2
    cpe:2.3:a:qemu:qemu:1.7.2
  • QEMU 2.0.0
    cpe:2.3:a:qemu:qemu:2.0.0
  • QEMU 2.0.0
    cpe:2.3:a:qemu:qemu:2.0.0
  • QEMU 2.0.0 release candidate 0
    cpe:2.3:a:qemu:qemu:2.0.0:rc0
  • QEMU 2.0.0 release candidate 1
    cpe:2.3:a:qemu:qemu:2.0.0:rc1
  • QEMU 2.0.0 release candidate 2
    cpe:2.3:a:qemu:qemu:2.0.0:rc2
  • QEMU 2.0.0 release candidate 3
    cpe:2.3:a:qemu:qemu:2.0.0:rc3
  • QEMU 2.0.1
    cpe:2.3:a:qemu:qemu:2.0.1
  • QEMU QEMU 2.0.2
    cpe:2.3:a:qemu:qemu:2.0.2
  • QEMU QEMU 2.1.0
    cpe:2.3:a:qemu:qemu:2.1.0
  • QEMU QEMU 2.1.0 release candidate 0
    cpe:2.3:a:qemu:qemu:2.1.0:rc0
  • QEMU QEMU 2.1.0 release candidate 1
    cpe:2.3:a:qemu:qemu:2.1.0:rc1
  • QEMU QEMU 2.1.0 release candidate 2
    cpe:2.3:a:qemu:qemu:2.1.0:rc2
  • QEMU QEMU 2.1.0 release candidate 3
    cpe:2.3:a:qemu:qemu:2.1.0:rc3
  • QEMU QEMU 2.1.0 release candidate 5
    cpe:2.3:a:qemu:qemu:2.1.0:rc5
  • QEMU QEMU 2.1.1
    cpe:2.3:a:qemu:qemu:2.1.1
  • QEMU QEMU 2.1.2
    cpe:2.3:a:qemu:qemu:2.1.2
  • QEMU 2.1.3
    cpe:2.3:a:qemu:qemu:2.1.3
  • QEMU 2.2.0
    cpe:2.3:a:qemu:qemu:2.2.0
  • QEMU 2.2.1
    cpe:2.3:a:qemu:qemu:2.2.1
  • QEMU 2.3.0
    cpe:2.3:a:qemu:qemu:2.3.0
  • QEMU 2.3.1
    cpe:2.3:a:qemu:qemu:2.3.1
  • QEMU 2.4.0
    cpe:2.3:a:qemu:qemu:2.4.0
  • QEMU 2.4.0.1
    cpe:2.3:a:qemu:qemu:2.4.0.1
  • QEMU 2.4.1
    cpe:2.3:a:qemu:qemu:2.4.1
  • QEMU 2.5.0
    cpe:2.3:a:qemu:qemu:2.5.0
  • QEMU 2.5.1
    cpe:2.3:a:qemu:qemu:2.5.1
  • QEMU 2.5.1.1
    cpe:2.3:a:qemu:qemu:2.5.1.1
  • QEMU 2.6.0
    cpe:2.3:a:qemu:qemu:2.6.0
  • QEMU 2.6.1
    cpe:2.3:a:qemu:qemu:2.6.1
  • QEMU 2.6.2
    cpe:2.3:a:qemu:qemu:2.6.2
  • QEMU 2.7.0
    cpe:2.3:a:qemu:qemu:2.7.0
  • QEMU 2.7.1
    cpe:2.3:a:qemu:qemu:2.7.1
  • QEMU 2.8.0
    cpe:2.3:a:qemu:qemu:2.8.0
  • QEMU 2.8.1
    cpe:2.3:a:qemu:qemu:2.8.1
  • QEMU 2.8.1.1
    cpe:2.3:a:qemu:qemu:2.8.1.1
CVSS
Base: 9.0
Impact:
Exploitability:
CWE CWE-59
CAPEC
  • Symlink Attack
    An attacker positions a symbolic link in such a manner that the targeted user or application accesses the link's endpoint, assuming that it is accessing a file with the link's name. The endpoint file may be either output or input. If the file is output, the result is that the endpoint is modified, instead of a file at the intended location. Modifications to the endpoint file may include appending, overwriting, corrupting, changing permissions, or other modifications. In some variants of this attack the attacker may be able to control the change to a file while in other cases they cannot. The former is especially damaging since the attacker may be able to grant themselves increased privileges or insert false information, but the latter can also be damaging as it can expose sensitive information or corrupt or destroy vital system or application files. Alternatively, the endpoint file may serve as input to the targeted application. This can be used to feed malformed input into the target or to cause the target to process different information, possibly allowing the attacker to control the actions of the target or to cause the target to expose information to the attacker. Moreover, the actions taken on the endpoint file are undertaken with the permissions of the targeted user or application, which may exceed the permissions that the attacker would normally have.
  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Manipulating Input to File System Calls
    An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
nessus via4
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-201704-01.NASL
    description The remote host is affected by the vulnerability described in GLSA-201704-01 (QEMU: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in QEMU. Please review the CVE identifiers referenced below for details. Impact : Remote server can cause a crash in the client causing execution of arbitrary code, and a Denial of Service within the QEMU process. Remote or Local users within a guest QEMU environment can cause a Denial of Service condition of the QEMU guest process. Workaround : There is no known workaround at this time.
    last seen 2019-02-21
    modified 2018-09-12
    plugin id 99274
    published 2017-04-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99274
    title GLSA-201704-01 : QEMU: Multiple vulnerabilities
  • NASL family Huawei Local Security Checks
    NASL id EULEROS_SA-2018-1321.NASL
    description According to the version of the qemu-kvm packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerability : - Qemu before version 2.9 is vulnerable to an improper link following when built with the VirtFS. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host.(CVE-2016-9602) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-13
    plugin id 118366
    published 2018-10-25
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118366
    title EulerOS Virtualization 2.5.1 : qemu-kvm (EulerOS-SA-2018-1321)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3268-1.NASL
    description Zhenhao Hong discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-10028) It was discovered that QEMU incorrectly handled the JAZZ RC4030 device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-8667) Jann Horn discovered that QEMU incorrectly handled VirtFS directory sharing. A privileged attacker inside the guest could use this issue to access files on the host file system outside of the shared directory and possibly escalate their privileges. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2016-9602) Gerd Hoffmann discovered that QEMU incorrectly handled the Cirrus VGA device when being used with a VNC connection. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2016-9603) Li Qiang discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to leak contents of host memory. (CVE-2016-9908) Li Qiang discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9912, CVE-2017-5552, CVE-2017-5578) Li Qiang discovered that QEMU incorrectly handled VirtFS directory sharing. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9914) Jiang Xin and Wjjzhang discovered that QEMU incorrectly handled SDHCI device emulation. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5987) Li Qiang discovered that QEMU incorrectly handled USB OHCI controller emulation. A privileged attacker inside the guest could use this issue to cause QEMU to hang, resulting in a denial of service. (CVE-2017-6505). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 99686
    published 2017-04-26
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99686
    title Ubuntu 17.04 : qemu vulnerabilities (USN-3268-1)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-1035.NASL
    description Several vulnerabilities were discovered in qemu, a fast processor emulator. The Common Vulnerabilities and Exposures project identifies the following problems : CVE-2016-9603 qemu-kvm built with the Cirrus CLGD 54xx VGA Emulator and the VNC display driver support is vulnerable to a heap buffer overflow issue. It could occur when Vnc client attempts to update its display after a vga operation is performed by a guest. A privileged user/process inside guest could use this flaw to crash the Qemu process resulting in DoS OR potentially leverage it to execute arbitrary code on the host with privileges of the Qemu process. CVE-2017-7718 qemu-kvm built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt functions cirrus_bitblt_rop_fwd_transp_ and/or cirrus_bitblt_rop_fwd_. A privileged user inside guest could use this flaw to crash the Qemu process resulting in DoS. CVE-2017-7980 qemu-kvm built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds r/w access issues. It could occur while copying VGA data via various bitblt functions. A privileged user inside guest could use this flaw to crash the Qemu process resulting in DoS OR potentially execute arbitrary code on a host with privileges of Qemu process on the host. CVE-2016-9602 Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9 File System(9pfs) support, is vulnerable to an improper link following issue. It could occur while accessing symbolic link files on a shared host directory. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host. CVE-2017-7377 Quick Emulator(Qemu) built with the virtio-9p back-end support is vulnerable to a memory leakage issue. It could occur while doing a I/O operation via v9fs_create/v9fs_lcreate routine. A privileged user/process inside guest could use this flaw to leak host memory resulting in Dos. CVE-2017-7471 Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9 File System(9pfs) support, is vulnerable to an improper access control issue. It could occur while accessing files on a shared host directory. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host. CVE-2017-7493 Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9 File System(9pfs) support, is vulnerable to an improper access control issue. It could occur while accessing virtfs metadata files in mapped-file security mode. A guest user could use this flaw to escalate their privileges inside guest. CVE-2017-8086 Quick Emulator(Qemu) built with the virtio-9p back-end support is vulnerable to a memory leakage issue. It could occur while querying file system extended attributes via 9pfs_list_xattr() routine. A privileged user/process inside guest could use this flaw to leak host memory resulting in Dos. For Debian 7 'Wheezy', these problems have been fixed in version 1.1.2+dfsg-6+deb7u22. We recommend that you upgrade your qemu packages. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-09-07
    plugin id 101909
    published 2017-07-24
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=101909
    title Debian DLA-1035-1 : qemu security update
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-965.NASL
    description Several vulnerabilities were discovered in qemu-kvm, a full virtualization solution for Linux hosts on x86 hardware with x86 guests based on the Quick Emulator(Qemu). CVE-2016-9602 Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9 File System(9pfs) support, is vulnerable to an improper link following issue. It could occur while accessing symbolic link files on a shared host directory. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host. CVE-2017-7377 Quick Emulator(Qemu) built with the virtio-9p back-end support is vulnerable to a memory leakage issue. It could occur while doing a I/O operation via v9fs_create/v9fs_lcreate routine. A privileged user/process inside guest could use this flaw to leak host memory resulting in Dos. CVE-2017-7471 Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9 File System(9pfs) support, is vulnerable to an improper access control issue. It could occur while accessing files on a shared host directory. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host. CVE-2017-7493 Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9 File System(9pfs) support, is vulnerable to an improper access control issue. It could occur while accessing virtfs metadata files in mapped-file security mode. A guest user could use this flaw to escalate their privileges inside guest. CVE-2017-8086 Quick Emulator(Qemu) built with the virtio-9p back-end support is vulnerable to a memory leakage issue. It could occur while querying file system extended attributes via 9pfs_list_xattr() routine. A privileged user/process inside guest could use this flaw to leak host memory resulting in Dos. For Debian 7 'Wheezy', these problems have been fixed in version 1.1.2+dfsg-6+deb7u22. We recommend that you upgrade your qemu-kvm packages. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-09-07
    plugin id 100514
    published 2017-05-31
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100514
    title Debian DLA-965-1 : qemu-kvm security update
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-2946-1.NASL
    description This update for qemu fixes several issues. These security issues were fixed : - CVE-2017-10911: The make_response function in the Linux kernel allowed guest OS users to obtain sensitive information from host OS (or other guest OS) kernel memory by leveraging the copying of uninitialized padding fields in Xen block-interface response structures (bsc#1057378). - CVE-2017-12809: The IDE disk and CD/DVD-ROM Emulator support allowed local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by flushing an empty CDROM device drive (bsc#1054724). - CVE-2017-15289: The mode4and5 write functions allowed local OS guest privileged users to cause a denial of service (out-of-bounds write access and Qemu process crash) via vectors related to dst calculation (bsc#1063122) - CVE-2017-15038: Race condition in the v9fs_xattrwalk function local guest OS users to obtain sensitive information from host heap memory via vectors related to reading extended attributes (bsc#1062069) - CVE-2017-14167: Integer overflow in the load_multiboot function allowed local guest OS users to execute arbitrary code on the host via crafted multiboot header address values, which trigger an out-of-bounds write (bsc#1057585) - CVE-2017-11434: The dhcp_decode function in slirp/bootp.c allowed local guest OS users to cause a denial of service (out-of-bounds read) via a crafted DHCP options string (bsc#1049381) - CVE-2017-11334: The address_space_write_continue function allowed local guest OS privileged users to cause a denial of service (out-of-bounds access and guest instance crash) by leveraging use of qemu_map_ram_ptr to access guest ram block area (bsc#1048902) - CVE-2017-13672: The VGA display emulator support allowed local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors involving display update (bsc#1056334) - CVE-2017-5973: A infinite loop while doing control transfer in xhci_kick_epctx allowed privileged user inside the guest to crash the host process resulting in DoS (bsc#1025109) - CVE-2017-5987: The sdhci_sdma_transfer_multi_blocks function in hw/sd/sdhci.c allowed local OS guest privileged users to cause a denial of service (infinite loop and QEMU process crash) via vectors involving the transfer mode register during multi block transfer (bsc#1025311) - CVE-2017-6505: The ohci_service_ed_list function allowed local guest OS users to cause a denial of service (infinite loop) via vectors involving the number of link endpoint list descriptors (bsc#1028184) - CVE-2016-9603: A privileged user within the guest VM could have caused a heap overflow in the device model process, potentially escalating their privileges to that of the device model process (bsc#1028656) - CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions (bsc#1034908) - CVE-2017-7980: An out-of-bounds r/w access issues in the Cirrus CLGD 54xx VGA Emulator support allowed privileged user inside guest to use this flaw to crash the Qemu process resulting in DoS or potentially execute arbitrary code on a host with privileges of Qemu process on the host (bsc#1035406) - CVE-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest OS privileged users to cause a denial of service (infinite loop and CPU consumption) via the message ring page count (bsc#1036211) - CVE-2017-9375: The USB xHCI controller emulator support was vulnerable to an infinite recursive call loop issue, which allowed a privileged user inside guest to crash the Qemu process resulting in DoS (bsc#1042800) - CVE-2017-9374: Missing free of 's->ipacket', causes a host memory leak, allowing for DoS (bsc#1043073) - CVE-2017-9373: The IDE AHCI Emulation support was vulnerable to a host memory leakage issue, which allowed a privileged user inside guest to leak host memory resulting in DoS (bsc#1042801) - CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service (infinite loop) by leveraging an incorrect return value (bsc#1042159) - CVE-2017-8379: Memory leak in the keyboard input event handlers support allowed local guest OS privileged users to cause a denial of service (host memory consumption) by rapidly generating large keyboard events (bsc#1037334) - CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers to cause a denial of service (memory consumption) by repeatedly starting and stopping audio capture (bsc#1037242) - CVE-2017-8380: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to an out-of-bounds read access issue which allowed a privileged user inside guest to read host memory resulting in DoS (bsc#1037336) - CVE-2017-7493: The VirtFS, host directory sharing via Plan 9 File System(9pfs) support, was vulnerable to an improper access control issue. It could occur while accessing virtfs metadata files in mapped-file security mode. A guest user could have used this flaw to escalate their privileges inside guest (bsc#1039495) - CVE-2016-9602: The VirtFS host directory sharing via Plan 9 File System(9pfs) support was vulnerable to an improper link following issue which allowed a privileged user inside guest to access host file system beyond the shared folder and potentially escalating their privileges on a host (bsc#1020427) - CVE-2017-5579: The 16550A UART serial device emulation support was vulnerable to a memory leakage issue allowing a privileged user to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1021741) - CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to a NULL pointer dereference issue which allowed a privileged user inside guest to crash the Qemu process on the host resulting in DoS (bsc#1043296) - CVE-2017-10664: qemu-nbd did not ignore SIGPIPE, which allowed remote attackers to cause a denial of service (daemon crash) by disconnecting during a server-to-client reply attempt (bsc#1046636) - CVE-2017-10806: Stack-based buffer overflow allowed local guest OS users to cause a denial of service (QEMU process crash) via vectors related to logging debug messages (bsc#1047674) - CVE-2016-9602: The VirtFS host directory sharing via Plan 9 File System(9pfs) support was vulnerable to an improper link following issue which allowed a privileged user inside guest to access host file system beyond the shared folder and potentially escalating their privileges on a host (bsc#1020427) - CVE-2017-7377: The v9fs_create and v9fs_lcreate functions in hw/9pfs/9p.c allowed local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid (bsc#1032075) - CVE-2017-8086: A memory leak in the v9fs_list_xattr function in hw/9pfs/9p-xattr.c allowed local guest OS privileged users to cause a denial of service (memory consumption) via vectors involving the orig_value variable (bsc#1035950) - CVE-2017-7471: The VirtFS host directory sharing via Plan 9 File System(9pfs) support was vulnerable to an improper access control issue which allowed a privileged user inside guest to access host file system beyond the shared folder and potentially escalating their privileges on a host (bsc#1034866) - CVE-2016-6835: Buffer overflow in the VMWARE VMXNET3 NIC device support, causing an OOB read access (bsc#994605) - CVE-2016-6834: A infinite loop during packet fragmentation in the VMWARE VMXNET3 NIC device support allowed privileged user inside guest to crash the Qemu instance resulting in DoS (bsc#994418) - Fix privilege escalation in TCG mode (bsc#1030624) The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 104471
    published 2017-11-09
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104471
    title SUSE SLES12 Security Update : qemu (SUSE-SU-2017:2946-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-3084-1.NASL
    description This update for kvm fixes several issues. These security issues were fixed : - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the bitblit copy routine cirrus_bitblt_cputovideo failed to check the memory region, allowing for an out-of-bounds write that allows for privilege escalation (bsc#1024972) - CVE-2017-2615: An error in the bitblt copy operation could have allowed a malicious guest administrator to cause an out of bounds memory access, possibly leading to information disclosure or privilege escalation (bsc#1023004) - CVE-2016-9776: The ColdFire Fast Ethernet Controller emulator support was vulnerable to an infinite loop issue while receiving packets in 'mcf_fec_receive'. A privileged user/process inside guest could have used this issue to crash the Qemu process on the host leading to DoS (bsc#1013285) - CVE-2016-9911: The USB EHCI Emulation support was vulnerable to a memory leakage issue while processing packet data in 'ehci_init_transfer'. A guest user/process could have used this issue to leak host memory, resulting in DoS for the host (bsc#1014111) - CVE-2016-9907: The USB redirector usb-guest support was vulnerable to a memory leakage flaw when destroying the USB redirector in 'usbredir_handle_destroy'. A guest user/process could have used this issue to leak host memory, resulting in DoS for a host (bsc#1014109) - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support was vulnerable to a divide by zero issue while copying VGA data. A privileged user inside guest could have used this flaw to crash the process instance on the host, resulting in DoS (bsc#1014702) - CVE-2016-9922: The Cirrus CLGD 54xx VGA Emulator support was vulnerable to a divide by zero issue while copying VGA data. A privileged user inside guest could have used this flaw to crash the process instance on the host, resulting in DoS (bsc#1014702) - CVE-2017-5898: The CCID Card device emulator support was vulnerable to an integer overflow allowing a privileged user inside the guest to crash the Qemu process resulting in DoS (bnc#1023907) - CVE-2016-10155: The virtual hardware watchdog 'wdt_i6300esb' was vulnerable to a memory leakage issue allowing a privileged user to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1021129) - CVE-2017-5856: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to a memory leakage issue allowing a privileged user to leak host memory resulting in DoS (bsc#1023053) - CVE-2016-9602: The VirtFS host directory sharing via Plan 9 File System(9pfs) support was vulnerable to an improper link following issue which allowed a privileged user inside guest to access host file system beyond the shared folder and potentially escalating their privileges on a host (bsc#1020427) - CVE-2016-9603: A privileged user within the guest VM could have caused a heap overflow in the device model process, potentially escalating their privileges to that of the device model process (bsc#1028656) - CVE-2017-10664: qemu-nbd did not ignore SIGPIPE, which allowed remote attackers to cause a denial of service (daemon crash) by disconnecting during a server-to-client reply attempt (bsc#1046636) - CVE-2017-10806: Stack-based buffer overflow allowed local guest OS users to cause a denial of service (QEMU process crash) via vectors related to logging debug messages (bsc#1047674) - CVE-2017-11334: The address_space_write_continue function allowed local guest OS privileged users to cause a denial of service (out-of-bounds access and guest instance crash) by leveraging use of qemu_map_ram_ptr to access guest ram block area (bsc#1048902) - CVE-2017-11434: The dhcp_decode function in slirp/bootp.c allowed local guest OS users to cause a denial of service (out-of-bounds read) via a crafted DHCP options string (bsc#1049381) - CVE-2017-13672: The VGA display emulator support allowed local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors involving display update (bsc#1056334) - CVE-2017-14167: Integer overflow in the load_multiboot function allowed local guest OS users to execute arbitrary code on the host via crafted multiboot header address values, which trigger an out-of-bounds write (bsc#1057585) - CVE-2017-15038: Race condition in the v9fs_xattrwalk function local guest OS users to obtain sensitive information from host heap memory via vectors related to reading extended attributes (bsc#1062069) - CVE-2017-15289: The mode4and5 write functions allowed local OS guest privileged users to cause a denial of service (out-of-bounds write access and Qemu process crash) via vectors related to dst calculation (bsc#1063122) - CVE-2017-5579: The 16550A UART serial device emulation support was vulnerable to a memory leakage issue allowing a privileged user to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1021741) - CVE-2017-5973: A infinite loop while doing control transfer in xhci_kick_epctx allowed privileged user inside the guest to crash the host process resulting in DoS (bsc#1025109) - CVE-2017-6505: The ohci_service_ed_list function allowed local guest OS users to cause a denial of service (infinite loop) via vectors involving the number of link endpoint list descriptors (bsc#1028184) - CVE-2017-7471: The VirtFS host directory sharing via Plan 9 File System(9pfs) support was vulnerable to an improper access control issue which allowed a privileged user inside guest to access host file system beyond the shared folder and potentially escalating their privileges on a host (bsc#1034866) - CVE-2017-7493: The VirtFS, host directory sharing via Plan 9 File System(9pfs) support, was vulnerable to an improper access control issue. It could occur while accessing virtfs metadata files in mapped-file security mode. A guest user could have used this flaw to escalate their privileges inside guest (bsc#1039495) - CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions (bsc#1034908) - CVE-2017-7980: An out-of-bounds r/w access issues in the Cirrus CLGD 54xx VGA Emulator support allowed privileged user inside guest to use this flaw to crash the Qemu process resulting in DoS or potentially execute arbitrary code on a host with privileges of Qemu process on the host (bsc#1035406) - CVE-2017-8086: A memory leak in the v9fs_list_xattr function in hw/9pfs/9p-xattr.c allowed local guest OS privileged users to cause a denial of service (memory consumption) via vectors involving the orig_value variable (bsc#1035950) - CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers to cause a denial of service (memory consumption) by repeatedly starting and stopping audio capture (bsc#1037242) - CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service (infinite loop) by leveraging an incorrect return value (bsc#1042159) - CVE-2017-9373: The IDE AHCI Emulation support was vulnerable to a host memory leakage issue, which allowed a privileged user inside guest to leak host memory resulting in DoS (bsc#1042801) - CVE-2017-9375: The USB xHCI controller emulator support was vulnerable to an infinite recursive call loop issue, which allowed a privileged user inside guest to crash the Qemu process resulting in DoS (bsc#1042800) - CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to a NULL pointer dereference issue which allowed a privileged user inside guest to crash the Qemu process on the host resulting in DoS (bsc#1043296) - Fix privilege escalation in TCG mode (bsc#1030624) The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 104780
    published 2017-11-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104780
    title SUSE SLES11 Security Update : kvm (SUSE-SU-2017:3084-1)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-1497.NASL
    description Several vulnerabilities were found in qemu, a fast processor emulator : CVE-2015-8666 Heap-based buffer overflow in QEMU when built with the Q35-chipset-based PC system emulator CVE-2016-2198 NULL pointer dereference in ehci_caps_write in the USB EHCI support that may result in denial of service CVE-2016-6833 Use after free while writing in the vmxnet3 device that could be used to cause a denial of service CVE-2016-6835 Buffer overflow in vmxnet_tx_pkt_parse_headers() in vmxnet3 device that could result in denial of service CVE-2016-8576 Infinite loop vulnerability in xhci_ring_fetch in the USB xHCI support CVE-2016-8667 / CVE-2016-8669 Divide by zero errors in set_next_tick in the JAZZ RC4030 chipset emulator, and in serial_update_parameters of some serial devices, that could result in denial of service CVE-2016-9602 Improper link following with VirtFS CVE-2016-9603 Heap buffer overflow via vnc connection in the Cirrus CLGD 54xx VGA emulator support CVE-2016-9776 Infinite loop while receiving data in the ColdFire Fast Ethernet Controller emulator CVE-2016-9907 Memory leakage in the USB redirector usb-guest support CVE-2016-9911 Memory leakage in ehci_init_transfer in the USB EHCI support CVE-2016-9914 / CVE-2016-9915 / CVE-2016-9916 Plan 9 File System (9pfs): add missing cleanup operation in FileOperations, in the handle backend and in the proxy backend driver CVE-2016-9921 / CVE-2016-9922 Divide by zero in cirrus_do_copy in the Cirrus CLGD 54xx VGA Emulator support CVE-2016-10155 Memory leak in hw/watchdog/wdt_i6300esb.c allowing local guest OS privileged users to cause a denial of service via a large number of device unplug operations. CVE-2017-2615 / CVE-2017-2620 / CVE-2017-18030 / CVE-2018-5683 / CVE-2017-7718 Out-of-bounds access issues in the Cirrus CLGD 54xx VGA emulator support, that could result in denial of service CVE-2017-5525 / CVE-2017-5526 Memory leakage issues in the ac97 and es1370 device emulation CVE-2017-5579 Most memory leakage in the 16550A UART emulation CVE-2017-5667 Out-of-bounds access during multi block SDMA transfer in the SDHCI emulation support. CVE-2017-5715 Mitigations against the Spectre v2 vulnerability. For more information please refer to https://www.qemu.org/2018/01/04/spectre/ CVE-2017-5856 Memory leak in the MegaRAID SAS 8708EM2 Host Bus Adapter emulation support CVE-2017-5973 / CVE-2017-5987 / CVE-2017-6505 Infinite loop issues in the USB xHCI, in the transfer mode register of the SDHCI protocol, and the USB ohci_service_ed_list CVE-2017-7377 9pfs: host memory leakage via v9fs_create CVE-2017-7493 Improper access control issues in the host directory sharing via 9pfs support. CVE-2017-7980 Heap-based buffer overflow in the Cirrus VGA device that could allow local guest OS users to execute arbitrary code or cause a denial of service CVE-2017-8086 9pfs: host memory leakage via v9pfs_list_xattr CVE-2017-8112 Infinite loop in the VMWare PVSCSI emulation CVE-2017-8309 / CVE-2017-8379 Host memory leakage issues via the audio capture buffer and the keyboard input event handlers CVE-2017-9330 Infinite loop due to incorrect return value in USB OHCI that may result in denial of service CVE-2017-9373 / CVE-2017-9374 Host memory leakage during hot unplug in IDE AHCI and USB emulated devices that could result in denial of service CVE-2017-9503 NULL pointer dereference while processing megasas command CVE-2017-10806 Stack buffer overflow in USB redirector CVE-2017-10911 Xen disk may leak stack data via response ring CVE-2017-11434 Out-of-bounds read while parsing Slirp/DHCP options CVE-2017-14167 Out-of-bounds access while processing multiboot headers that could result in the execution of arbitrary code CVE-2017-15038 9pfs: information disclosure when reading extended attributes CVE-2017-15289 Out-of-bounds write access issue in the Cirrus graphic adaptor that could result in denial of service CVE-2017-16845 Information leak in the PS/2 mouse and keyboard emulation support that could be exploited during instance migration CVE-2017-18043 Integer overflow in the macro ROUND_UP (n, d) that could result in denial of service CVE-2018-7550 Incorrect handling of memory during multiboot that could may result in execution of arbitrary code For Debian 8 'Jessie', these problems have been fixed in version 1:2.1+dfsg-12+deb8u7. We recommend that you upgrade your qemu packages. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-09-07
    plugin id 117351
    published 2018-09-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=117351
    title Debian DLA-1497-1 : qemu security update (Spectre)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2017-822.NASL
    description This update for qemu fixes several issues. These security issues were fixed : - CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service (infinite loop) by leveraging an incorrect return value (bsc#1042159). - CVE-2017-8379: Memory leak in the keyboard input event handlers support allowed local guest OS privileged users to cause a denial of service (host memory consumption) by rapidly generating large keyboard events (bsc#1037334). - CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers to cause a denial of service (memory consumption) by repeatedly starting and stopping audio capture (bsc#1037242). - CVE-2017-7493: The VirtFS, host directory sharing via Plan 9 File System(9pfs) support, was vulnerable to an improper access control issue. It could occur while accessing virtfs metadata files in mapped-file security mode. A guest user could have used this flaw to escalate their privileges inside guest (bsc#1039495). - CVE-2017-7377: The v9fs_create and v9fs_lcreate functions in hw/9pfs/9p.c allowed local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid (bsc#1032075). - CVE-2017-8086: A memory leak in the v9fs_list_xattr function in hw/9pfs/9p-xattr.c allowed local guest OS privileged users to cause a denial of service (memory consumption) via vectors involving the orig_value variable (bsc#1035950). - CVE-2017-5973: A infinite loop while doing control transfer in xhci_kick_epctx allowed privileged user inside the guest to crash the host process resulting in DoS (bsc#1025109) - CVE-2017-5987: The sdhci_sdma_transfer_multi_blocks function in hw/sd/sdhci.c allowed local OS guest privileged users to cause a denial of service (infinite loop and QEMU process crash) via vectors involving the transfer mode register during multi block transfer (bsc#1025311). - CVE-2017-6505: The ohci_service_ed_list function in hw/usb/hcd-ohci.c allowed local guest OS users to cause a denial of service (infinite loop) via vectors involving the number of link endpoint list descriptors (bsc#1028184) - CVE-2016-9603: A privileged user within the guest VM could have caused a heap overflow in the device model process, potentially escalating their privileges to that of the device model process (bsc#1028656) - CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions (bsc#1034908) - CVE-2017-7980: An out-of-bounds r/w access issues in the Cirrus CLGD 54xx VGA Emulator support allowed privileged user inside guest to use this flaw to crash the Qemu process resulting in DoS or potentially execute arbitrary code on a host with privileges of Qemu process on the host (bsc#1035406) - CVE-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest OS privileged users to cause a denial of service (infinite loop and CPU consumption) via the message ring page count (bsc#1036211). - CVE-2017-9375: The USB xHCI controller emulator support was vulnerable to an infinite recursive call loop issue, which allowed a privileged user inside guest to crash the Qemu process resulting in DoS (bsc#1042800). - CVE-2017-9374: Missing free of 's->ipacket', causes a host memory leak, allowing for DoS (bsc#1043073). - CVE-2017-9373: The IDE AHCI Emulation support was vulnerable to a host memory leakage issue, which allowed a privileged user inside guest to leak host memory resulting in DoS (bsc#1042801). - CVE-2017-8380: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to an out-of-bounds read access issue which allowed a privileged user inside guest to read host memory resulting in DoS (bsc#1037336). - CVE-2016-9602: The VirtFS host directory sharing via Plan 9 File System(9pfs) support was vulnerable to an improper link following issue which allowed a privileged user inside guest to access host file system beyond the shared folder and potentially escalating their privileges on a host (bsc#1020427). - CVE-2017-7471: The VirtFS host directory sharing via Plan 9 File System(9pfs) support was vulnerable to an improper access control issue which allowed a privileged user inside guest to access host file system beyond the shared folder and potentially escalating their privileges on a host (bsc#1034866). - Fix privilege escalation in TCG mode of QEMU. This is not considered a security issue by the upstream project, but is included as additional hardening (bsc#1030624) - Fix potential DoS in virtfs - CVE-2016-10028: The Virtio GPU Device emulator support was vulnerable to an out of bounds memory access issue allowing a guest user to crash the Qemu process instance on a host, resulting in DoS (bsc#1017084, bsc#1016503) - CVE-2016-10029: The Virtio GPU Device emulator support was vulnerable to an OOB read issue allowing a guest user to crash the Qemu process instance resulting in Dos (bsc#1017081, bsc#1016504) - CVE-2017-5579: The 16550A UART serial device emulation support was vulnerable to a memory leakage issue allowing a privileged user to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1021741) - CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to a NULL pointer dereference issue which allowed a privileged user inside guest to crash the Qemu process on the host resulting in DoS (bsc#1043296). This non-security issue was fixed : - Enable MONITOR/MWAIT support for guests (bsc#1031142) This update was imported from the SUSE:SLE-12-SP2:Update update project.
    last seen 2019-02-21
    modified 2018-09-07
    plugin id 101758
    published 2017-07-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=101758
    title openSUSE Security Update : qemu (openSUSE-2017-822)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-2963-1.NASL
    description This update for kvm fixes several issues. These security issues were fixed : - CVE-2016-9602: The VirtFS host directory sharing via Plan 9 File System(9pfs) support was vulnerable to an improper link following issue which allowed a privileged user inside guest to access host file system beyond the shared folder and potentially escalating their privileges on a host (bsc#1020427) - CVE-2016-9603: A privileged user within the guest VM could have caused a heap overflow in the device model process, potentially escalating their privileges to that of the device model process (bsc#1028656) - CVE-2017-10664: qemu-nbd did not ignore SIGPIPE, which allowed remote attackers to cause a denial of service (daemon crash) by disconnecting during a server-to-client reply attempt (bsc#1046636) - CVE-2017-10806: Stack-based buffer overflow allowed local guest OS users to cause a denial of service (QEMU process crash) via vectors related to logging debug messages (bsc#1047674). - CVE-2017-11334: The address_space_write_continue function allowed local guest OS privileged users to cause a denial of service (out-of-bounds access and guest instance crash) by leveraging use of qemu_map_ram_ptr to access guest ram block area (bsc#1048902). - CVE-2017-11434: The dhcp_decode function in slirp/bootp.c allowed local guest OS users to cause a denial of service (out-of-bounds read) via a crafted DHCP options string (bsc#1049381) - CVE-2017-13672: The VGA display emulator support allowed local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors involving display update (bsc#1056334). - CVE-2017-14167: Integer overflow in the load_multiboot function allowed local guest OS users to execute arbitrary code on the host via crafted multiboot header address values, which trigger an out-of-bounds write (bsc#1057585). - CVE-2017-15038: Race condition in the v9fs_xattrwalk function local guest OS users to obtain sensitive information from host heap memory via vectors related to reading extended attributes (bsc#1062069). - CVE-2017-15289: The mode4and5 write functions allowed local OS guest privileged users to cause a denial of service (out-of-bounds write access and Qemu process crash) via vectors related to dst calculation (bsc#1063122). - CVE-2017-5579: The 16550A UART serial device emulation support was vulnerable to a memory leakage issue allowing a privileged user to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1021741) - CVE-2017-5973: A infinite loop while doing control transfer in xhci_kick_epctx allowed privileged user inside the guest to crash the host process resulting in DoS (bsc#1025109) - CVE-2017-6505: The ohci_service_ed_list function allowed local guest OS users to cause a denial of service (infinite loop) via vectors involving the number of link endpoint list descriptors (bsc#1028184) - CVE-2017-7471: The VirtFS host directory sharing via Plan 9 File System(9pfs) support was vulnerable to an improper access control issue which allowed a privileged user inside guest to access host file system beyond the shared folder and potentially escalating their privileges on a host (bsc#1034866) - CVE-2017-7493: The VirtFS, host directory sharing via Plan 9 File System(9pfs) support, was vulnerable to an improper access control issue. It could occur while accessing virtfs metadata files in mapped-file security mode. A guest user could have used this flaw to escalate their privileges inside guest (bsc#1039495) - CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions (bsc#1034908) - CVE-2017-7980: An out-of-bounds r/w access issues in the Cirrus CLGD 54xx VGA Emulator support allowed privileged user inside guest to use this flaw to crash the Qemu process resulting in DoS or potentially execute arbitrary code on a host with privileges of Qemu process on the host (bsc#1035406) - CVE-2017-8086: A memory leak in the v9fs_list_xattr function in hw/9pfs/9p-xattr.c allowed local guest OS privileged users to cause a denial of service (memory consumption) via vectors involving the orig_value variable (bsc#1035950) - CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers to cause a denial of service (memory consumption) by repeatedly starting and stopping audio capture (bsc#1037242) - CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service (infinite loop) by leveraging an incorrect return value (bsc#1042159) - CVE-2017-9373: The IDE AHCI Emulation support was vulnerable to a host memory leakage issue, which allowed a privileged user inside guest to leak host memory resulting in DoS (bsc#1042801) - CVE-2017-9375: The USB xHCI controller emulator support was vulnerable to an infinite recursive call loop issue, which allowed a privileged user inside guest to crash the Qemu process resulting in DoS (bsc#1042800) - CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to a NULL pointer dereference issue which allowed a privileged user inside guest to crash the Qemu process on the host resulting in DoS (bsc#1043296) - Privilege escalation in TCG mode (bsc#1030624) The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 104494
    published 2017-11-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104494
    title SUSE SLES11 Security Update : kvm (SUSE-SU-2017:2963-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-2969-1.NASL
    description This update for qemu fixes several issues. These security issues were fixed : - CVE-2017-15289: The mode4and5 write functions allowed local OS guest privileged users to cause a denial of service (out-of-bounds write access and Qemu process crash) via vectors related to dst calculation (bsc#1063122) - CVE-2017-2633: The VNC display driver support was vulnerable to an out-of-bounds memory access issue. A user/process inside guest could use this flaw to cause DoS (bsc#1026612) - CVE-2017-15038: Race condition in the v9fs_xattrwalk function local guest OS users to obtain sensitive information from host heap memory via vectors related to reading extended attributes (bsc#1062069) - CVE-2017-14167: Integer overflow in the load_multiboot function allowed local guest OS users to execute arbitrary code on the host via crafted multiboot header address values, which trigger an out-of-bounds write (bsc#1057585) - CVE-2017-11434: The dhcp_decode function in slirp/bootp.c allowed local guest OS users to cause a denial of service (out-of-bounds read) via a crafted DHCP options string (bsc#1049381) - CVE-2017-11334: The address_space_write_continue function allowed local guest OS privileged users to cause a denial of service (out-of-bounds access and guest instance crash) by leveraging use of qemu_map_ram_ptr to access guest ram block area (bsc#1048902) - CVE-2017-13672: The VGA display emulator support allowed local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors involving display update (bsc#1056334) - CVE-2017-5973: A infinite loop while doing control transfer in xhci_kick_epctx allowed privileged user inside the guest to crash the host process resulting in DoS (bsc#1025109) - CVE-2017-5987: The sdhci_sdma_transfer_multi_blocks function in hw/sd/sdhci.c allowed local OS guest privileged users to cause a denial of service (infinite loop and QEMU process crash) via vectors involving the transfer mode register during multi block transfer (bsc#1025311) - CVE-2017-6505: The ohci_service_ed_list function allowed local guest OS users to cause a denial of service (infinite loop) via vectors involving the number of link endpoint list descriptors (bsc#1028184) - CVE-2016-9603: A privileged user within the guest VM could have caused a heap overflow in the device model process, potentially escalating their privileges to that of the device model process (bsc#1028656) - CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions (bsc#1034908) - CVE-2017-7980: An out-of-bounds r/w access issues in the Cirrus CLGD 54xx VGA Emulator support allowed privileged user inside guest to use this flaw to crash the Qemu process resulting in DoS or potentially execute arbitrary code on a host with privileges of Qemu process on the host (bsc#1035406) - CVE-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest OS privileged users to cause a denial of service (infinite loop and CPU consumption) via the message ring page count (bsc#1036211) - CVE-2017-9375: The USB xHCI controller emulator support was vulnerable to an infinite recursive call loop issue, which allowed a privileged user inside guest to crash the Qemu process resulting in DoS (bsc#1042800) - CVE-2017-9373: The IDE AHCI Emulation support was vulnerable to a host memory leakage issue, which allowed a privileged user inside guest to leak host memory resulting in DoS (bsc#1042801) - CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service (infinite loop) by leveraging an incorrect return value (bsc#1042159) - CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers to cause a denial of service (memory consumption) by repeatedly starting and stopping audio capture (bsc#1037242) - CVE-2017-7493: The VirtFS, host directory sharing via Plan 9 File System(9pfs) support, was vulnerable to an improper access control issue. It could occur while accessing virtfs metadata files in mapped-file security mode. A guest user could have used this flaw to escalate their privileges inside guest (bsc#1039495) - CVE-2016-9602: The VirtFS host directory sharing via Plan 9 File System(9pfs) support was vulnerable to an improper link following issue which allowed a privileged user inside guest to access host file system beyond the shared folder and potentially escalating their privileges on a host (bsc#1020427) - CVE-2017-5579: The 16550A UART serial device emulation support was vulnerable to a memory leakage issue allowing a privileged user to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1021741) - CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to a NULL pointer dereference issue which allowed a privileged user inside guest to crash the Qemu process on the host resulting in DoS (bsc#1043296) - CVE-2017-10664: qemu-nbd did not ignore SIGPIPE, which allowed remote attackers to cause a denial of service (daemon crash) by disconnecting during a server-to-client reply attempt (bsc#1046636) - CVE-2017-10806: Stack-based buffer overflow allowed local guest OS users to cause a denial of service (QEMU process crash) via vectors related to logging debug messages (bsc#1047674) - CVE-2016-9602: The VirtFS host directory sharing via Plan 9 File System(9pfs) support was vulnerable to an improper link following issue which allowed a privileged user inside guest to access host file system beyond the shared folder and potentially escalating their privileges on a host (bsc#1020427) - CVE-2017-7377: The v9fs_create and v9fs_lcreate functions in hw/9pfs/9p.c allowed local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid (bsc#1032075) - CVE-2017-8086: A memory leak in the v9fs_list_xattr function in hw/9pfs/9p-xattr.c allowed local guest OS privileged users to cause a denial of service (memory consumption) via vectors involving the orig_value variable (bsc#1035950) - CVE-2017-7471: The VirtFS host directory sharing via Plan 9 File System(9pfs) support was vulnerable to an improper access control issue which allowed a privileged user inside guest to access host file system beyond the shared folder and potentially escalating their privileges on a host (bsc#1034866) - CVE-2016-6834: A infinite loop during packet fragmentation in the VMWARE VMXNET3 NIC device support allowed privileged user inside guest to crash the Qemu instance resulting in DoS (bsc#994418) - CVE-2016-6835: Buffer overflow in the VMWARE VMXNET3 NIC device support, causing an OOB read access (bsc#994605) - Fix privilege escalation in TCG mode (bsc#1030624) The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 104495
    published 2017-11-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104495
    title SUSE SLES12 Security Update : qemu (SUSE-SU-2017:2969-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-1774-1.NASL
    description This update for qemu fixes several issues. These security issues were fixed : - CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service (infinite loop) by leveraging an incorrect return value (bsc#1042159). - CVE-2017-8379: Memory leak in the keyboard input event handlers support allowed local guest OS privileged users to cause a denial of service (host memory consumption) by rapidly generating large keyboard events (bsc#1037334). - CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers to cause a denial of service (memory consumption) by repeatedly starting and stopping audio capture (bsc#1037242). - CVE-2017-7493: The VirtFS, host directory sharing via Plan 9 File System(9pfs) support, was vulnerable to an improper access control issue. It could occur while accessing virtfs metadata files in mapped-file security mode. A guest user could have used this flaw to escalate their privileges inside guest (bsc#1039495). - CVE-2017-7377: The v9fs_create and v9fs_lcreate functions in hw/9pfs/9p.c allowed local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid (bsc#1032075). - CVE-2017-8086: A memory leak in the v9fs_list_xattr function in hw/9pfs/9p-xattr.c allowed local guest OS privileged users to cause a denial of service (memory consumption) via vectors involving the orig_value variable (bsc#1035950). - CVE-2017-5973: A infinite loop while doing control transfer in xhci_kick_epctx allowed privileged user inside the guest to crash the host process resulting in DoS (bsc#1025109) - CVE-2017-5987: The sdhci_sdma_transfer_multi_blocks function in hw/sd/sdhci.c allowed local OS guest privileged users to cause a denial of service (infinite loop and QEMU process crash) via vectors involving the transfer mode register during multi block transfer (bsc#1025311). - CVE-2017-6505: The ohci_service_ed_list function in hw/usb/hcd-ohci.c allowed local guest OS users to cause a denial of service (infinite loop) via vectors involving the number of link endpoint list descriptors (bsc#1028184) - CVE-2016-9603: A privileged user within the guest VM could have caused a heap overflow in the device model process, potentially escalating their privileges to that of the device model process (bsc#1028656) - CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions (bsc#1034908) - CVE-2017-7980: An out-of-bounds r/w access issues in the Cirrus CLGD 54xx VGA Emulator support allowed privileged user inside guest to use this flaw to crash the Qemu process resulting in DoS or potentially execute arbitrary code on a host with privileges of Qemu process on the host (bsc#1035406) - CVE-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest OS privileged users to cause a denial of service (infinite loop and CPU consumption) via the message ring page count (bsc#1036211). - CVE-2017-9375: The USB xHCI controller emulator support was vulnerable to an infinite recursive call loop issue, which allowed a privileged user inside guest to crash the Qemu process resulting in DoS (bsc#1042800). - CVE-2017-9374: Missing free of 's->ipacket', causes a host memory leak, allowing for DoS (bsc#1043073). - CVE-2017-9373: The IDE AHCI Emulation support was vulnerable to a host memory leakage issue, which allowed a privileged user inside guest to leak host memory resulting in DoS (bsc#1042801). - CVE-2017-8380: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to an out-of-bounds read access issue which allowed a privileged user inside guest to read host memory resulting in DoS (bsc#1037336). - CVE-2016-9602: The VirtFS host directory sharing via Plan 9 File System(9pfs) support was vulnerable to an improper link following issue which allowed a privileged user inside guest to access host file system beyond the shared folder and potentially escalating their privileges on a host (bsc#1020427). - CVE-2017-7471: The VirtFS host directory sharing via Plan 9 File System(9pfs) support was vulnerable to an improper access control issue which allowed a privileged user inside guest to access host file system beyond the shared folder and potentially escalating their privileges on a host (bsc#1034866). - Fix privilege escalation in TCG mode of QEMU. This is not considered a security issue by the upstream project, but is included as additional hardening (bsc#1030624) - Fix potential DoS in virtfs - CVE-2016-10028: The Virtio GPU Device emulator support was vulnerable to an out of bounds memory access issue allowing a guest user to crash the Qemu process instance on a host, resulting in DoS (bsc#1017084, bsc#1016503) - CVE-2016-10029: The Virtio GPU Device emulator support was vulnerable to an OOB read issue allowing a guest user to crash the Qemu process instance resulting in Dos (bsc#1017081, bsc#1016504) - CVE-2017-5579: The 16550A UART serial device emulation support was vulnerable to a memory leakage issue allowing a privileged user to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1021741) - CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to a NULL pointer dereference issue which allowed a privileged user inside guest to crash the Qemu process on the host resulting in DoS (bsc#1043296). The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 101227
    published 2017-07-05
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=101227
    title SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2017:1774-1)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3261-1.NASL
    description Zhenhao Hong discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-10028, CVE-2016-10029) Li Qiang discovered that QEMU incorrectly handled the 6300esb watchdog. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-10155) Li Qiang discovered that QEMU incorrectly handled the i.MX Fast Ethernet Controller. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-7907) It was discovered that QEMU incorrectly handled the JAZZ RC4030 device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-8667) It was discovered that QEMU incorrectly handled the 16550A UART device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-8669) It was discovered that QEMU incorrectly handled the shared rings when used with Xen. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. (CVE-2016-9381) Jann Horn discovered that QEMU incorrectly handled VirtFS directory sharing. A privileged attacker inside the guest could use this issue to access files on the host file system outside of the shared directory and possibly escalate their privileges. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2016-9602) Gerd Hoffmann discovered that QEMU incorrectly handled the Cirrus VGA device when being used with a VNC connection. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2016-9603) It was discovered that QEMU incorrectly handled the ColdFire Fast Ethernet Controller. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9776) Li Qiang discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to leak contents of host memory. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-9845, CVE-2016-9908) Li Qiang discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-9846, CVE-2016-9912, CVE-2017-5552, CVE-2017-5578, CVE-2017-5857) Li Qiang discovered that QEMU incorrectly handled the USB redirector. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-9907) Li Qiang discovered that QEMU incorrectly handled USB EHCI emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9911) Li Qiang discovered that QEMU incorrectly handled VirtFS directory sharing. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9913, CVE-2016-9914, CVE-2016-9915, CVE-2016-9916) Qinghao Tang, Li Qiang, and Jiangxin discovered that QEMU incorrectly handled the Cirrus VGA device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9921, CVE-2016-9922) Wjjzhang and Li Qiang discovered that QEMU incorrectly handled the Cirrus VGA device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2017-2615) It was discovered that QEMU incorrectly handled the Cirrus VGA device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2017-2620) It was discovered that QEMU incorrectly handled VNC connections. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-2633) Li Qiang discovered that QEMU incorrectly handled the ac97 audio device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5525) Li Qiang discovered that QEMU incorrectly handled the es1370 audio device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5526) Li Qiang discovered that QEMU incorrectly handled the 16550A UART device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5579) Jiang Xin discovered that QEMU incorrectly handled SDHCI device emulation. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2017-5667) Li Qiang discovered that QEMU incorrectly handled the MegaRAID SAS device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5856) Li Qiang discovered that QEMU incorrectly handled the CCID Card device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5898) Li Qiang discovered that QEMU incorrectly handled USB xHCI controller emulation. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5973) Jiang Xin and Wjjzhang discovered that QEMU incorrectly handled SDHCI device emulation. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5987) Li Qiang discovered that QEMU incorrectly handled USB OHCI controller emulation. A privileged attacker inside the guest could use this issue to cause QEMU to hang, resulting in a denial of service. (CVE-2017-6505). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 99581
    published 2017-04-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99581
    title Ubuntu 14.04 LTS / 16.04 LTS / 16.10 : qemu vulnerabilities (USN-3261-1)
refmap via4
bid 95461
confirm https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9602
gentoo GLSA-201704-01
mlist
  • [debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update
  • [oss-security] 20170117 CVE-2016-9602 Qemu: 9p: virtfs allows guest to access host filesystem
  • [qemu-devel] 20170130 [PATCH RFC 00/36] 9pfs: local: fix vulnerability to symlink attacks
  • [qemu-devel] 20170220 [PATCH 00/29] 9pfs: local: fix vulnerability to symlink attacks
sectrack 1037604
Last major update 26-04-2018 - 15:29
Published 26-04-2018 - 15:29
Last modified 07-09-2018 - 06:29
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