ID CVE-2016-9103
Summary The v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values before writing to them.
References
Vulnerable Configurations
  • QEMU
    cpe:2.3:a:qemu:qemu
CVSS
Base: 2.1 (as of 12-12-2016 - 10:04)
Impact:
Exploitability:
CWE CWE-200
CAPEC
  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.
  • Reusing Session IDs (aka Session Replay)
    This attack targets the reuse of valid session ID to spoof the target system in order to gain privileges. The attacker tries to reuse a stolen session ID used previously during a transaction to perform spoofing and session hijacking. Another name for this type of attack is Session Replay.
  • Using Slashes in Alternate Encoding
    This attack targets the encoding of the Slash characters. An attacker would try to exploit common filtering problems related to the use of the slashes characters to gain access to resources on the target host. Directory-driven systems, such as file systems and databases, typically use the slash character to indicate traversal between directories or other container components. For murky historical reasons, PCs (and, as a result, Microsoft OSs) choose to use a backslash, whereas the UNIX world typically makes use of the forward slash. The schizophrenic result is that many MS-based systems are required to understand both forms of the slash. This gives the attacker many opportunities to discover and abuse a number of common filtering problems. The goal of this pattern is to discover server software that only applies filters to one version, but not the other.
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL NONE NONE
nessus via4
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-698.NASL
    description Several vulnerabilities were discovered in qemu, a fast processor emulator. The Common Vulnerabilities and Exposures project identifies the following problems : CVE-2016-7909 Quick Emulator(Qemu) built with the AMD PC-Net II emulator support is vulnerable to an infinite loop issue. It could occur while receiving packets via pcnet_receive(). A privileged user/process inside guest could use this issue to crash the Qemu process on the host leading to DoS. CVE-2016-8909 Quick Emulator(Qemu) built with the Intel HDA controller emulation support is vulnerable to an infinite loop issue. It could occur while processing the DMA buffer stream while doing data transfer in 'intel_hda_xfer'. A privileged user inside guest could use this flaw to consume excessive CPU cycles on the host, resulting in DoS. CVE-2016-8910 Quick Emulator(Qemu) built with the RTL8139 ethernet controller emulation support is vulnerable to an infinite loop issue. It could occur while transmitting packets in C+ mode of operation. A privileged user inside guest could use this flaw to consume excessive CPU cycles on the host, resulting in DoS situation. CVE-2016-9101 Quick Emulator(Qemu) built with the i8255x (PRO100) NIC emulation support is vulnerable to a memory leakage issue. It could occur while unplugging the device, and doing so repeatedly would result in leaking host memory affecting, other services on the host. A privileged user inside guest could use this flaw to cause a DoS on the host and/or potentially crash the Qemu process on the host. CVE-2016-9102 CVE-2016-9105 CVE-2016-9106 Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9 File System(9pfs) support, is vulnerable to a several memory leakage issues. A privileged user inside guest could use this flaws to leak the host memory bytes resulting in DoS for other services. CVE-2016-9104 Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9 File System(9pfs) support, is vulnerable to an integer overflow issue. It could occur by accessing xattributes values. A privileged user inside guest could use this flaw to crash the Qemu process instance resulting in DoS. CVE-2016-9103 Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9 File System(9pfs) support, is vulnerable to an information leakage issue. It could occur by accessing xattribute value before it's written to. A privileged user inside guest could use this flaw to leak host memory bytes. For Debian 7 'Wheezy', these problems have been fixed in version 1.1.2+dfsg-6+deb7u18. 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 2018-09-04
    plugin id 94519
    published 2016-11-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=94519
    title Debian DLA-698-1 : qemu security update
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2017-B953D4D3A4.NASL
    description - CVE-2016-6836: vmxnet: Information leakage in vmxnet3_complete_packet (bz #1366370) - CVE-2016-7909: pcnet: Infinite loop in pcnet_rdra_addr (bz #1381196) - CVE-2016-7994: virtio-gpu: memory leak in resource_create_2d (bz #1382667) - CVE-2016-8577: 9pfs: host memory leakage in v9fs_read (bz #1383286) - CVE-2016-8578: 9pfs: potential NULL dereferencein 9pfs routines (bz #1383292) - CVE-2016-8668: OOB buffer access in rocker switch emulation (bz #1384898) - CVE-2016-8669: divide by zero error in serial_update_parameters (bz #1384911) - CVE-2016-8909: intel-hda: infinite loop in dma buffer stream (bz #1388053) - Infinite loop vulnerability in a9_gtimer_update (bz #1388300) - CVE-2016-9101: eepro100: memory leakage at device unplug (bz #1389539) - CVE-2016-9103: 9pfs: information leakage via xattr (bz #1389643) - CVE-2016-9102: 9pfs: memory leakage when creating extended attribute (bz #1389551) - CVE-2016-9104: 9pfs: integer overflow leading to OOB access (bz #1389687) - CVE-2016-9105: 9pfs: memory leakage in v9fs_link (bz #1389704) - CVE-2016-9106: 9pfs: memory leakage in v9fs_write (bz #1389713) - CVE-2016-9381: xen: incautious about shared ring processing (bz #1397385) - CVE-2016-9921: Divide by zero vulnerability in cirrus_do_copy (bz #1399054) - CVE-2016-9776: infinite loop while receiving data in mcf_fec_receive (bz #1400830) - CVE-2016-9845: information leakage in virgl_cmd_get_capset_info (bz #1402247) - CVE-2016-9846: virtio-gpu: memory leakage while updating cursor data (bz #1402258) - CVE-2016-9907: usbredir: memory leakage when destroying redirector (bz #1402266) - CVE-2016-9911: usb: ehci: memory leakage in ehci_init_transfer (bz #1402273) - CVE-2016-9913: 9pfs: memory leakage via proxy/handle callbacks (bz #1402277) - CVE-2016-10028: virtio-gpu-3d: OOB access while reading virgl capabilities (bz #1406368) - CVE-2016-9908: virtio-gpu: information leakage in virgl_cmd_get_capset (bz #1402263) - CVE-2016-9912: virtio-gpu: memory leakage when destroying gpu resource (bz #1402285) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2017-01-30
    plugin id 96677
    published 2017-01-23
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96677
    title Fedora 25 : 2:qemu (2017-b953d4d3a4)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2017-12394E2CC7.NASL
    description - CVE-2016-6836: vmxnet: Information leakage in vmxnet3_complete_packet (bz #1366370) - CVE-2016-7909: pcnet: Infinite loop in pcnet_rdra_addr (bz #1381196) - CVE-2016-7994: virtio-gpu: memory leak in resource_create_2d (bz #1382667) - CVE-2016-8577: 9pfs: host memory leakage in v9fs_read (bz #1383286) - CVE-2016-8578: 9pfs: potential NULL dereferencein 9pfs routines (bz #1383292) - CVE-2016-8668: OOB buffer access in rocker switch emulation (bz #1384898) - CVE-2016-8669: divide by zero error in serial_update_parameters (bz #1384911) - CVE-2016-8910: rtl8139: infinite loop while transmit in C+ mode (bz #1388047) - CVE-2016-8909: intel-hda: infinite loop in dma buffer stream (bz #1388053) - Infinite loop vulnerability in a9_gtimer_update (bz #1388300) - CVE-2016-9101: eepro100: memory leakage at device unplug (bz #1389539) - CVE-2016-9103: 9pfs: information leakage via xattr (bz #1389643) - CVE-2016-9102: 9pfs: memory leakage when creating extended attribute (bz #1389551) - CVE-2016-9104: 9pfs: integer overflow leading to OOB access (bz #1389687) - CVE-2016-9105: 9pfs: memory leakage in v9fs_link (bz #1389704) - CVE-2016-9106: 9pfs: memory leakage in v9fs_write (bz #1389713) - CVE-2016-9381: xen: incautious about shared ring processing (bz #1397385) - CVE-2016-9921: Divide by zero vulnerability in cirrus_do_copy (bz #1399054) - CVE-2016-9776: infinite loop while receiving data in mcf_fec_receive (bz #1400830) - CVE-2016-9845: information leakage in virgl_cmd_get_capset_info (bz #1402247) - CVE-2016-9846: virtio-gpu: memory leakage while updating cursor data (bz #1402258) - CVE-2016-9907: usbredir: memory leakage when destroying redirector (bz #1402266) - CVE-2016-9911: usb: ehci: memory leakage in ehci_init_transfer (bz #1402273) - CVE-2016-9913: 9pfs: memory leakage via proxy/handle callbacks (bz #1402277) - CVE-2016-10028: virtio-gpu-3d: OOB access while reading virgl capabilities (bz #1406368) - CVE-2016-9908: virtio-gpu: information leakage in virgl_cmd_get_capset (bz #1402263) - CVE-2016-9912: virtio-gpu: memory leakage when destroying gpu resource (bz #1402285) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2017-01-30
    plugin id 96782
    published 2017-01-26
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96782
    title Fedora 24 : 2:qemu (2017-12394e2cc7)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3125-1.NASL
    description Zhenhao Hong discovered that QEMU incorrectly handled the Virtio module. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources, resulting in a denial of service. (CVE-2016-5403) Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network card emulation support. 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 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-6833, CVE-2016-6834, CVE-2016-6888) Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network card emulation support. 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. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-6835) Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network card emulation support. A privileged attacker inside the guest could use this issue to possibly to obtain sensitive host memory. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-6836) Felix Wilhelm discovered that QEMU incorrectly handled Plan 9 File System (9pfs) support. A privileged attacker inside the guest could use this issue to possibly to obtain sensitive host files. (CVE-2016-7116) Li Qiang and Tom Victor discovered that QEMU incorrectly handled VMWARE PVSCSI paravirtual SCSI bus emulation support. 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 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-7155) Li Qiang discovered that QEMU incorrectly handled VMWARE PVSCSI paravirtual SCSI bus emulation support. 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 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-7156, CVE-2016-7421) Tom Victor discovered that QEMU incorrectly handled LSI SAS1068 host bus emulation support. 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 16.10. (CVE-2016-7157) Hu Chaojian discovered that QEMU incorrectly handled xlnx.xps-ethernetlite emulation support. 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-2016-7161) Qinghao Tang and Li Qiang discovered that QEMU incorrectly handled the VMware VGA module. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-7170) Qinghao Tang and Zhenhao Hong discovered that QEMU incorrectly handled the Virtio module. 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 16.10. (CVE-2016-7422) Li Qiang discovered that QEMU incorrectly handled LSI SAS1068 host bus emulation support. 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 16.10. (CVE-2016-7423) Li Qiang discovered that QEMU incorrectly handled USB xHCI controller emulation support. 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-2016-7466) Li Qiang discovered that QEMU incorrectly handled ColdFire Fast Ethernet Controller emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-7908) Li Qiang discovered that QEMU incorrectly handled AMD PC-Net II emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-7909) Li Qiang discovered that QEMU incorrectly handled the Virtio GPU support. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-7994) Li Qiang discovered that QEMU incorrectly handled USB EHCI emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources, resulting in a denial of service. This issue only affected Ubuntu 16.10. (CVE-2016-7995) Li Qiang discovered that QEMU incorrectly handled USB xHCI controller support. 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 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-8576) Li Qiang discovered that QEMU incorrectly handled Plan 9 File System (9pfs) support. 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 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-8577, CVE-2016-8578) It was discovered that QEMU incorrectly handled Rocker switch emulation support. 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-2016-8668) It was discovered that QEMU incorrectly handled Intel HDA controller emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources, resulting in a denial of service. (CVE-2016-8909) Andrew Henderson discovered that QEMU incorrectly handled RTL8139 ethernet controller emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources, resulting in a denial of service. (CVE-2016-8910) Li Qiang discovered that QEMU incorrectly handled Intel i8255x ethernet controller emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources, resulting in a denial of service. (CVE-2016-9101) Li Qiang discovered that QEMU incorrectly handled Plan 9 File System (9pfs) support. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources, resulting in a denial of service. (CVE-2016-9102, CVE-2016-9104, CVE-2016-9105) Li Qiang discovered that QEMU incorrectly handled Plan 9 File System (9pfs) support. A privileged attacker inside the guest could use this issue to possibly to obtain sensitive host memory. (CVE-2016-9103) Li Qiang discovered that QEMU incorrectly handled Plan 9 File System (9pfs) support. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-9106). 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 94669
    published 2016-11-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=94669
    title Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : qemu, qemu-kvm vulnerabilities (USN-3125-1)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2016-DA6B1D277B.NASL
    description several qemu security fixes Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2016-12-13
    plugin id 94690
    published 2016-11-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=94690
    title Fedora 23 : xen (2016-da6b1d277b)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-1599.NASL
    description Several vulnerabilities were found in QEMU, a fast processor emulator : CVE-2016-2391 Zuozhi Fzz discovered that eof_times in USB OHCI emulation support could be used to cause a denial of service, via a NULL pointer dereference. CVE-2016-2392 / CVE-2016-2538 Qinghao Tang found a NULL pointer dereference and multiple integer overflows in the USB Net device support that could allow local guest OS administrators to cause a denial of service. These issues related to remote NDIS control message handling. CVE-2016-2841 Yang Hongke reported an infinite loop vulnerability in the NE2000 NIC emulation support. CVE-2016-2857 Liu Ling found a flaw in QEMU IP checksum routines. Attackers could take advantage of this issue to cause QEMU to crash. CVE-2016-2858 Arbitrary stack based allocation in the Pseudo Random Number Generator (PRNG) back-end support. CVE-2016-4001 / CVE-2016-4002 Oleksandr Bazhaniuk reported buffer overflows in the Stellaris and the MIPSnet ethernet controllers emulation. Remote malicious users could use these issues to cause QEMU to crash. CVE-2016-4020 Donghai Zdh reported that QEMU incorrectly handled the access to the Task Priority Register (TPR), allowing local guest OS administrators to obtain sensitive information from host stack memory. CVE-2016-4037 Du Shaobo found an infinite loop vulnerability in the USB EHCI emulation support. CVE-2016-4439 / CVE-2016-4441 / CVE-2016-5238 / CVE-2016-5338 / CVE-2016-6351 Li Qiang found different issues in the QEMU 53C9X Fast SCSI Controller (FSC) emulation support, that made it possible for local guest OS privileged users to cause denials of service or potentially execute arbitrary code. CVE-2016-4453 / CVE-2016-4454 Li Qiang reported issues in the QEMU VMWare VGA module handling, that may be used to cause QEMU to crash, or to obtain host sensitive information. CVE-2016-4952 / CVE-2016-7421 / CVE-2016-7156 Li Qiang reported flaws in the VMware paravirtual SCSI bus emulation support. These issues concern an out-of-bounds access and infinite loops, that allowed local guest OS privileged users to cause a denial of service. CVE-2016-5105 / CVE-2016-5106 / CVE-2016-5107 / CVE-2016-5337 Li Qiang discovered several issues in the MegaRAID SAS 8708EM2 Host Bus Adapter emulation support. These issues include stack information leakage while reading configuration and out-of-bounds write and read. CVE-2016-6834 Li Qiang reported an infinite loop vulnerability during packet fragmentation in the network transport abstraction layer support. Local guest OS privileged users could made use of this flaw to cause a denial of service. CVE-2016-6836 / CVE-2016-6888 Li Qiang found issues in the VMWare VMXNET3 network card emulation support, relating to information leak and integer overflow in packet initialisation. CVE-2016-7116 Felix Wilhel discovered a directory traversal flaw in the Plan 9 File System (9pfs), exploitable by local guest OS privileged users. CVE-2016-7155 Tom Victor and Li Qiang reported an out-of-bounds read and an infinite loop in the VMware paravirtual SCSI bus emulation support. CVE-2016-7161 Hu Chaojian reported a heap overflow in the xlnx.xps-ethernetlite emulation support. Privileged users in local guest OS could made use of this to cause QEMU to crash. CVE-2016-7170 Qinghao Tang and Li Qiang reported a flaw in the QEMU VMWare VGA module, that could be used by privileged user in local guest OS to cause QEMU to crash via an out-of-bounds stack memory access. CVE-2016-7908 / CVE-2016-7909 Li Qiang reported infinite loop vulnerabilities in the ColdFire Fast Ethernet Controller and the AMD PC-Net II (Am79C970A) emulations. These flaws allowed local guest OS administrators to cause a denial of service. CVE-2016-8909 Huawei PSIRT found an infinite loop vulnerability in the Intel HDA emulation support, relating to DMA buffer stream processing. Privileged users in local guest OS could made use of this to cause a denial of service. CVE-2016-8910 Andrew Henderson reported an infinite loop in the RTL8139 ethernet controller emulation support. Privileged users inside a local guest OS could made use of this to cause a denial of service. CVE-2016-9101 Li Qiang reported a memory leakage in the i8255x (PRO100) ethernet controller emulation support. CVE-2016-9102 / CVE-2016-9103 / CVE-2016-9104 / CVE-2016-9105 / CVE-2016-9106 / CVE-2016-8577 / CVE-2016-8578 Li Qiang reported various Plan 9 File System (9pfs) security issues, including host memory leakage and denial of service. CVE-2017-10664 Denial of service in the qemu-nbd (QEMU Disk Network Block Device) Server. CVE-2018-10839 / CVE-2018-17962 / CVE-2018-17963 Daniel Shapira reported several integer overflows in the packet handling in ethernet controllers emulated by QEMU. These issues could lead to denial of service. For Debian 8 'Jessie', these problems have been fixed in version 1:2.1+dfsg-12+deb8u8. 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 2018-12-01
    plugin id 119310
    published 2018-12-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=119310
    title Debian DLA-1599-1 : qemu security update
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-0127-1.NASL
    description qemu was updated to fix several issues. These security issues were fixed : - CVE-2016-9102: Memory leak in the v9fs_xattrcreate function in hw/9pfs/9p.c in allowed local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) via a large number of Txattrcreate messages with the same fid number (bsc#1014256). - CVE-2016-9103: The v9fs_xattrcreate function in hw/9pfs/9p.c in allowed local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values writing to them (bsc#1007454). - CVE-2016-9381: Improper processing of shared rings allowing guest administrators take over the qemu process, elevating their privilege to that of the qemu process (bsc#1009109) - 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-2016-9845: The Virtio GPU Device emulator support as vulnerable to an information leakage issue while processing the 'VIRTIO_GPU_CMD_GET_CAPSET_INFO' command. A guest user/process could have used this flaw to leak contents of the host memory (bsc#1013767). - CVE-2016-9846: The Virtio GPU Device emulator support was vulnerable to a memory leakage issue while updating the cursor data in update_cursor_data_virgl. A guest user/process could have used this flaw to leak host memory bytes, resulting in DoS for the host (bsc#1013764). - 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-2016-9908: The Virtio GPU Device emulator support was vulnerable to an information leakage issue while processing the 'VIRTIO_GPU_CMD_GET_CAPSET' command. A guest user/process could have used this flaw to leak contents of the host memory (bsc#1014514). - 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-2016-9912: The Virtio GPU Device emulator support was vulnerable to a memory leakage issue while destroying gpu resource object in 'virtio_gpu_resource_destroy'. A guest user/process could have used this flaw to leak host memory bytes, resulting in DoS for the host (bsc#1014112). - CVE-2016-9913: VirtFS was vulnerable to memory leakage issue via its '9p-handle' or '9p-proxy' backend drivers. A privileged user inside guest could have used this flaw to leak host memory, thus affecting other services on the host and/or potentially crash the Qemu process on the host (bsc#1014110). 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 96529
    published 2017-01-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96529
    title SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2017:0127-1)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2017-116.NASL
    description qemu was updated to fix several issues. These security issues were fixed : - CVE-2016-9102: Memory leak in the v9fs_xattrcreate function in hw/9pfs/9p.c in allowed local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) via a large number of Txattrcreate messages with the same fid number (bsc#1014256). - CVE-2016-9103: The v9fs_xattrcreate function in hw/9pfs/9p.c in allowed local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values writing to them (bsc#1007454). - CVE-2016-9381: Improper processing of shared rings allowing guest administrators take over the qemu process, elevating their privilege to that of the qemu process (bsc#1009109) - 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-2016-9845: The Virtio GPU Device emulator support as vulnerable to an information leakage issue while processing the 'VIRTIO_GPU_CMD_GET_CAPSET_INFO' command. A guest user/process could have used this flaw to leak contents of the host memory (bsc#1013767). - CVE-2016-9846: The Virtio GPU Device emulator support was vulnerable to a memory leakage issue while updating the cursor data in update_cursor_data_virgl. A guest user/process could have used this flaw to leak host memory bytes, resulting in DoS for the host (bsc#1013764). - 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-2016-9908: The Virtio GPU Device emulator support was vulnerable to an information leakage issue while processing the 'VIRTIO_GPU_CMD_GET_CAPSET' command. A guest user/process could have used this flaw to leak contents of the host memory (bsc#1014514). - 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-2016-9912: The Virtio GPU Device emulator support was vulnerable to a memory leakage issue while destroying gpu resource object in 'virtio_gpu_resource_destroy'. A guest user/process could have used this flaw to leak host memory bytes, resulting in DoS for the host (bsc#1014112). - CVE-2016-9913: VirtFS was vulnerable to memory leakage issue via its '9p-handle' or '9p-proxy' backend drivers. A privileged user inside guest could have used this flaw to leak host memory, thus affecting other services on the host and/or potentially crash the Qemu process on the host (bsc#1014110). These non-security issues were fixed : - Fixed uint64 property parsing and add regression tests (bsc#937125) - Added a man page for kvm_stat - Fix crash in vte (bsc#1008519) - Various upstream commits targeted towards stable releases (bsc#1013341) This update was imported from the SUSE:SLE-12-SP2:Update update project.
    last seen 2019-02-21
    modified 2017-01-30
    plugin id 96623
    published 2017-01-19
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96623
    title openSUSE Security Update : qemu (openSUSE-2017-116)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2016-2988-1.NASL
    description This update for qemu fixes the following issues : - Patch queue updated from https://gitlab.suse.de/virtualization/qemu.git SLE12-SP1 - Change package post script udevadm trigger calls to be device specific (bsc#1002116) - Address various security/stability issues - Fix OOB access in xlnx.xpx-ethernetlite emulation (CVE-2016-7161 bsc#1001151) - Fix OOB access in VMware SVGA emulation (CVE-2016-7170 bsc#998516) - Fix DOS in USB xHCI emulation (CVE-2016-7466 bsc#1000345) - Fix DOS in Vmware pv scsi interface (CVE-2016-7421 bsc#999661) - Fix DOS in ColdFire Fast Ethernet Controller emulation (CVE-2016-7908 bsc#1002550) - Fix DOS in USB xHCI emulation (CVE-2016-8576 bsc#1003878) - Fix DOS in virtio-9pfs (CVE-2016-8578 bsc#1003894) - Fix DOS in virtio-9pfs (CVE-2016-9105 bsc#1007494) - Fix DOS in virtio-9pfs (CVE-2016-8577 bsc#1003893) - Plug data leak in virtio-9pfs interface (CVE-2016-9103 bsc#1007454) - Fix DOS in virtio-9pfs interface (CVE-2016-9102 bsc#1007450) - Fix DOS in virtio-9pfs (CVE-2016-9106 bsc#1007495) - Fix DOS in 16550A UART emulation (CVE-2016-8669 bsc#1004707) - Fix DOS in PC-Net II emulation (CVE-2016-7909 bsc#1002557) - Fix DOS in PRO100 emulation (CVE-2016-9101 bsc#1007391) - Fix DOS in RTL8139 emulation (CVE-2016-8910 bsc#1006538) - Fix DOS in Intel HDA controller emulation (CVE-2016-8909 bsc#1006536) - Fix DOS in virtio-9pfs (CVE-2016-9104 bsc#1007493) - Fix DOS in JAZZ RC4030 emulation (CVE-2016-8667 bsc#1004702) - Fix case of disk corruption with migration due to improper internal state tracking (bsc#996524) 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 2018-11-29
    plugin id 95537
    published 2016-12-05
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95537
    title SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2016:2988-1)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2016-7B6FBFF620.NASL
    description several qemu security fixes Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2016-12-13
    plugin id 95006
    published 2016-11-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95006
    title Fedora 25 : xen (2016-7b6fbff620)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2016-0D1A8EE35B.NASL
    description several qemu security fixes Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2016-12-13
    plugin id 94656
    published 2016-11-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=94656
    title Fedora 24 : xen (2016-0d1a8ee35b)
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-201611-11.NASL
    description The remote host is affected by the vulnerability described in GLSA-201611-11 (QEMU: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in QEMU. Please review the CVE identifiers referenced below for details. Impact : A privileged user /process within a guest QEMU environment can cause a Denial of Service condition against the QEMU guest process or the host. Workaround : There is no known workaround at this time.
    last seen 2019-02-21
    modified 2017-01-03
    plugin id 95018
    published 2016-11-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95018
    title GLSA-201611-11 : QEMU: Multiple vulnerabilities
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2016-2936-1.NASL
    description This update for qemu fixes the following issues : - Patch queue updated from https://gitlab.suse.de/virtualization/qemu.git SLE12 - Change package post script udevadm trigger calls to be device specific (bsc#1002116) - Address various security/stability issues - Fix OOB access in xlnx.xpx-ethernetlite emulation (CVE-2016-7161 bsc#1001151) - Fix OOB access in VMware SVGA emulation (CVE-2016-7170 bsc#998516) - Fix DOS in Vmware pv scsi interface (CVE-2016-7421 bsc#999661) - Fix DOS in ColdFire Fast Ethernet Controller emulation (CVE-2016-7908 bsc#1002550) - Fix DOS in USB xHCI emulation (CVE-2016-8576 bsc#1003878) - Fix DOS in virtio-9pfs (CVE-2016-8578 bsc#1003894) - Fix DOS in virtio-9pfs (CVE-2016-9105 bsc#1007494) - Fix DOS in virtio-9pfs (CVE-2016-8577 bsc#1003893) - Plug data leak in virtio-9pfs interface (CVE-2016-9103 bsc#1007454) - Fix DOS in virtio-9pfs interface (CVE-2016-9102 bsc#1007450) - Fix DOS in virtio-9pfs (CVE-2016-9106 bsc#1007495) - Fix DOS in 16550A UART emulation (CVE-2016-8669 bsc#1004707) - Fix DOS in PC-Net II emulation (CVE-2016-7909 bsc#1002557) - Fix DOS in PRO100 emulation (CVE-2016-9101 bsc#1007391) - Fix DOS in RTL8139 emulation (CVE-2016-8910 bsc#1006538) - Fix DOS in Intel HDA controller emulation (CVE-2016-8909 bsc#1006536) - Fix DOS in virtio-9pfs (CVE-2016-9104 bsc#1007493) - Fix DOS in JAZZ RC4030 emulation (CVE-2016-8667 bsc#1004702) 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 2018-11-29
    plugin id 95396
    published 2016-11-29
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95396
    title SUSE SLES12 Security Update : qemu (SUSE-SU-2016:2936-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2016-2902-1.NASL
    description This update for kvm fixes the following issues : - Address various security/stability issues - Fix OOB access in xlnx.xpx-ethernetlite emulation (CVE-2016-7161 bsc#1001151) - Fix OOB access in VMware SVGA emulation (CVE-2016-7170 bsc#998516) - Fix DOS in ColdFire Fast Ethernet Controller emulation (CVE-2016-7908 bsc#1002550) - Fix DOS in USB xHCI emulation (CVE-2016-8576 bsc#1003878) - Fix DOS in virtio-9pfs (CVE-2016-8578 bsc#1003894) - Fix DOS in virtio-9pfs (CVE-2016-9105 bsc#1007494) - Fix DOS in virtio-9pfs (CVE-2016-8577 bsc#1003893) - Plug data leak in virtio-9pfs interface (CVE-2016-9103 bsc#1007454) - Fix DOS in virtio-9pfs interface (CVE-2016-9102 bsc#1007450) - Fix DOS in virtio-9pfs (CVE-2016-9106 bsc#1007495) - Fix DOS in 16550A UART emulation (CVE-2016-8669 bsc#1004707) - Fix DOS in PC-Net II emulation (CVE-2016-7909 bsc#1002557) - Fix DOS in PRO100 emulation (CVE-2016-9101 bsc#1007391) - Fix DOS in RTL8139 emulation (CVE-2016-8910 bsc#1006538) - Fix DOS in Intel HDA controller emulation (CVE-2016-8909 bsc#1006536) - Fix DOS in virtio-9pfs (CVE-2016-9104 bsc#1007493) - Fix DOS in JAZZ RC4030 emulation (CVE-2016-8667 bsc#1004702) - Patch queue updated from https://gitlab.suse.de/virtualization/qemu.git SLE11-SP4 - Remove semi-contradictory and now determined erroneous statement in kvm-supported.txt regarding not running ntp in kvm guest when kvm-clock is used. It is now recommended to use ntp in guest in this case. 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 2018-11-29
    plugin id 95316
    published 2016-11-25
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95316
    title SUSE SLES11 Security Update : kvm (SUSE-SU-2016:2902-1)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2016-1451.NASL
    description This update for qemu fixes the following issues : - Patch queue updated from https://gitlab.suse.de/virtualization/qemu.git SLE12-SP1 - Change package post script udevadm trigger calls to be device specific (bsc#1002116) - Address various security/stability issues - Fix OOB access in xlnx.xpx-ethernetlite emulation (CVE-2016-7161 bsc#1001151) - Fix OOB access in VMware SVGA emulation (CVE-2016-7170 bsc#998516) - Fix DOS in USB xHCI emulation (CVE-2016-7466 bsc#1000345) - Fix DOS in Vmware pv scsi interface (CVE-2016-7421 bsc#999661) - Fix DOS in ColdFire Fast Ethernet Controller emulation (CVE-2016-7908 bsc#1002550) - Fix DOS in USB xHCI emulation (CVE-2016-8576 bsc#1003878) - Fix DOS in virtio-9pfs (CVE-2016-8578 bsc#1003894) - Fix DOS in virtio-9pfs (CVE-2016-9105 bsc#1007494) - Fix DOS in virtio-9pfs (CVE-2016-8577 bsc#1003893) - Plug data leak in virtio-9pfs interface (CVE-2016-9103 bsc#1007454) - Fix DOS in virtio-9pfs interface (CVE-2016-9102 bsc#1007450) - Fix DOS in virtio-9pfs (CVE-2016-9106 bsc#1007495) - Fix DOS in 16550A UART emulation (CVE-2016-8669 bsc#1004707) - Fix DOS in PC-Net II emulation (CVE-2016-7909 bsc#1002557) - Fix DOS in PRO100 emulation (CVE-2016-9101 bsc#1007391) - Fix DOS in RTL8139 emulation (CVE-2016-8910 bsc#1006538) - Fix DOS in Intel HDA controller emulation (CVE-2016-8909 bsc#1006536) - Fix DOS in virtio-9pfs (CVE-2016-9104 bsc#1007493) - Fix DOS in JAZZ RC4030 emulation (CVE-2016-8667 bsc#1004702) - Fix case of disk corruption with migration due to improper internal state tracking (bsc#996524) This update was imported from the SUSE:SLE-12-SP1:Update update project.
    last seen 2019-02-21
    modified 2016-12-13
    plugin id 95757
    published 2016-12-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95757
    title openSUSE Security Update : qemu (openSUSE-2016-1451)
refmap via4
bid 93955
confirm http://git.qemu.org/?p=qemu.git;a=commit;h=eb687602853b4ae656e9236ee4222609f3a6887d
gentoo GLSA-201611-11
mlist
  • [debian-lts-announce] 20181130 [SECURITY] [DLA 1599-1] qemu security update
  • [oss-security] 20161028 CVE request Qemu: 9pfs: information leakage via xattribute
  • [oss-security] 20161030 Re: CVE request Qemu: 9pfs: information leakage via xattribute
  • [qemu-devel] 20161010 Re: [PATCH 1/2] 9pfs: fix information leak in xattr read
Last major update 12-12-2016 - 21:59
Published 09-12-2016 - 17:59
Last modified 01-12-2018 - 06:29
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