ID CVE-2017-15597
Summary An issue was discovered in Xen through 4.9.x. Grant copying code made an implication that any grant pin would be accompanied by a suitable page reference. Other portions of code, however, did not match up with that assumption. When such a grant copy operation is being done on a grant of a dying domain, the assumption turns out wrong. A malicious guest administrator can cause hypervisor memory corruption, most likely resulting in host crash and a Denial of Service. Privilege escalation and information leaks cannot be ruled out.
References
Vulnerable Configurations
  • Xen 4.9.0 Release Candidate 7
    cpe:2.3:o:xen:xen:4.9.0:rc7
CVSS
Base: 9.0
Impact:
Exploitability:
CWE CWE-264
CAPEC
  • 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.
  • Blue Boxing
    This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
  • Target Programs with Elevated Privileges
    This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.
  • 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 SuSE Local Security Checks
    NASL id SUSE_SU-2017-3212-1.NASL
    description This update for xen fixes several issues. These security issues were fixed : - bsc#1068187: Failure to recognize errors in the Populate on Demand (PoD) code allowed for DoS (XSA-246) - bsc#1068191: Missing p2m error checking in PoD code allowed unprivileged guests to retain a writable mapping of freed memory leading to information leaks, privilege escalation or DoS (XSA-247). - 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#1063123) - CVE-2017-15597: A grant copy operation being done on a grant of a dying domain allowed a malicious guest administrator to corrupt hypervisor memory, allowing for DoS or potentially privilege escalation and information leaks (bsc#1061075). - CVE-2017-15595: x86 PV guest OS users were able to cause a DoS (unbounded recursion, stack consumption, and hypervisor crash) or possibly gain privileges via crafted page-table stacking (bsc#1061081). - CVE-2017-15592: x86 HVM guest OS users were able to cause a DoS (hypervisor crash) or possibly gain privileges because self-linear shadow mappings were mishandled for translated guests (bsc#1061086). 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 105033
    published 2017-12-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=105033
    title SUSE SLES11 Security Update : xen (SUSE-SU-2017:3212-1)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2017-1321.NASL
    description This update for xen to version 4.9.1 (bsc#1027519) fixes several issues. This new feature was added : - Support migration of HVM domains larger than 1 TB These security issues were fixed : - bsc#1068187: Failure to recognize errors in the Populate on Demand (PoD) code allowed for DoS (XSA-246) - bsc#1068191: Missing p2m error checking in PoD code allowed unprivileged guests to retain a writable mapping of freed memory leading to information leaks, privilege escalation or DoS (XSA-247). - 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#1063123) - CVE-2017-15597: A grant copy operation being done on a grant of a dying domain allowed a malicious guest administrator to corrupt hypervisor memory, allowing for DoS or potentially privilege escalation and information leaks (bsc#1061075). This non-security issue was fixed : - bsc#1055047: Fixed --initrd-inject option in virt-install This update was imported from the SUSE:SLE-12-SP3:Update update project.
    last seen 2019-02-21
    modified 2018-12-18
    plugin id 105221
    published 2017-12-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=105221
    title openSUSE Security Update : xen (openSUSE-2017-1321)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-1549.NASL
    description Multiple vulnerabilities have been discovered in the Xen hypervisor, which could result in denial of service, informations leaks or privilege escalation. For Debian 8 'Jessie', these problems have been fixed in version 4.4.4lts2-0+deb8u1. We recommend that you upgrade your xen 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 2018-10-19
    plugin id 118215
    published 2018-10-19
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118215
    title Debian DLA-1549-1 : xen security update
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2017-F05808EE5B.NASL
    description pin count / page reference race in grant table code [XSA-236, CVE-2017-15597] (#1506693) 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 2018-02-02
    plugin id 105998
    published 2018-01-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=105998
    title Fedora 27 : xen (2017-f05808ee5b)
  • NASL family Misc.
    NASL id XEN_SERVER_XSA-236.NASL
    description According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a memory corruption vulnerability. This may allow an attacker on the guest to cause a denial of service or gain elevated privileges on the host. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware configurations or if patches were applied manually to the source code before a recompile and reinstall.
    last seen 2019-02-21
    modified 2018-08-08
    plugin id 104214
    published 2017-10-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104214
    title Xen Hypervisor Pin Count / Page Reference Grant Table Code Guest-to-Host Memory Corruption (XSA-236)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2017-1322.NASL
    description This update for xen to version 4.7.4 (bsc#1027519) fixes several issues. This new feature was added : - Support migration of HVM domains larger than 1 TB These security issues were fixed : - bsc#1068187: Failure to recognize errors in the Populate on Demand (PoD) code allowed for DoS (XSA-246) - bsc#1068191: Missing p2m error checking in PoD code allowed unprivileged guests to retain a writable mapping of freed memory leading to information leaks, privilege escalation or DoS (XSA-247). - 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#1063123) - CVE-2017-15597: A grant copy operation being done on a grant of a dying domain allowed a malicious guest administrator to corrupt hypervisor memory, allowing for DoS or potentially privilege escalation and information leaks (bsc#1061075). This non-security issue was fixed : - bsc#1055047: Fixed --initrd-inject option in virt-install This update was imported from the SUSE:SLE-12-SP2:Update update project.
    last seen 2019-02-21
    modified 2018-12-18
    plugin id 105222
    published 2017-12-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=105222
    title openSUSE Security Update : xen (openSUSE-2017-1322)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2018-0248.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2018-0248 for details.
    last seen 2019-02-21
    modified 2018-11-19
    plugin id 111992
    published 2018-08-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=111992
    title OracleVM 3.4 : xen (OVMSA-2018-0248) (Bunker Buster) (Foreshadow) (Meltdown) (POODLE) (Spectre)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-3239-1.NASL
    description This update for xen fixes several issues. These security issues were fixed : - bsc#1068187: Failure to recognize errors in the Populate on Demand (PoD) code allowed for DoS (XSA-246) - bsc#1068191: Missing p2m error checking in PoD code allowed unprivileged guests to retain a writable mapping of freed memory leading to information leaks, privilege escalation or DoS (XSA-247). - 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#1063123) - CVE-2017-15597: A grant copy operation being done on a grant of a dying domain allowed a malicious guest administrator to corrupt hypervisor memory, allowing for DoS or potentially privilege escalation and information leaks (bsc#1061075). - CVE-2017-15595: x86 PV guest OS users were able to cause a DoS (unbounded recursion, stack consumption, and hypervisor crash) or possibly gain privileges via crafted page-table stacking (bsc#1061081). - CVE-2017-15592: x86 HVM guest OS users were able to cause a DoS (hypervisor crash) or possibly gain privileges because self-linear shadow mappings were mishandled for translated guests (bsc#1061086). - 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#1056336) 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 105148
    published 2017-12-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=105148
    title SUSE SLES12 Security Update : xen (SUSE-SU-2017:3239-1)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-4050.NASL
    description Multiple vulnerabilities have been discovered in the Xen hypervisor, which could result in denial of service, information leaks, privilege escalation or the execution of arbitrary code.
    last seen 2019-02-21
    modified 2018-11-13
    plugin id 104819
    published 2017-11-29
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104819
    title Debian DSA-4050-1 : xen - security update
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-3115-1.NASL
    description This update for xen to version 4.9.1 (bsc#1027519) fixes several issues. This new feature was added : - Support migration of HVM domains larger than 1 TB These security issues were fixed : - bsc#1068187: Failure to recognize errors in the Populate on Demand (PoD) code allowed for DoS (XSA-246) - bsc#1068191: Missing p2m error checking in PoD code allowed unprivileged guests to retain a writable mapping of freed memory leading to information leaks, privilege escalation or DoS (XSA-247). - 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#1063123) - CVE-2017-15597: A grant copy operation being done on a grant of a dying domain allowed a malicious guest administrator to corrupt hypervisor memory, allowing for DoS or potentially privilege escalation and information leaks (bsc#1061075). 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 104870
    published 2017-11-30
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104870
    title SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2017:3115-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-3178-1.NASL
    description This update for xen to version 4.7.4 (bsc#1027519) fixes several issues. This new feature was added : - Support migration of HVM domains larger than 1 TB These security issues were fixed : - bsc#1068187: Failure to recognize errors in the Populate on Demand (PoD) code allowed for DoS (XSA-246) - bsc#1068191: Missing p2m error checking in PoD code allowed unprivileged guests to retain a writable mapping of freed memory leading to information leaks, privilege escalation or DoS (XSA-247). - 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#1063123) - CVE-2017-15597: A grant copy operation being done on a grant of a dying domain allowed a malicious guest administrator to corrupt hypervisor memory, allowing for DoS or potentially privilege escalation and information leaks (bsc#1061075). 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 104992
    published 2017-12-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104992
    title SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2017:3178-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-3236-1.NASL
    description This update for xen fixes several issues. These security issues were fixed : - bsc#1068187: Failure to recognize errors in the Populate on Demand (PoD) code allowed for DoS (XSA-246) - bsc#1068191: Missing p2m error checking in PoD code allowed unprivileged guests to retain a writable mapping of freed memory leading to information leaks, privilege escalation or DoS (XSA-247). - 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#1063123) - CVE-2017-15597: A grant copy operation being done on a grant of a dying domain allowed a malicious guest administrator to corrupt hypervisor memory, allowing for DoS or potentially privilege escalation and information leaks (bsc#1061075). - CVE-2017-15595: x86 PV guest OS users were able to cause a DoS (unbounded recursion, stack consumption, and hypervisor crash) or possibly gain privileges via crafted page-table stacking (bsc#1061081). - CVE-2017-15592: x86 HVM guest OS users were able to cause a DoS (hypervisor crash) or possibly gain privileges because self-linear shadow mappings were mishandled for translated guests (bsc#1061086). - 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#1056336) 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 105098
    published 2017-12-08
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=105098
    title SUSE SLES12 Security Update : xen (SUSE-SU-2017:3236-1)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2017-0166.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - BUILDINFO: xen commit=6c164f71ed0dc46201f1d69de65d05d138556fcc - BUILDINFO: QEMU upstream commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff - BUILDINFO: QEMU traditional commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba - BUILDINFO: IPXE commit=9a93db3f0947484e30e753bbd61a10b17336e20e - BUILDINFO: SeaBIOS commit=7d9cbe613694924921ed1a6f8947d711c5832eee - x86/cpu: fix IST handling during PCPU bringup (Andrew Cooper) [Orabug: 26901427] (CVE-2017-15594) - x86/shadow: Don't create self-linear shadow mappings for 4-level translated guests (Andrew Cooper) [Orabug: 26901416] (CVE-2017-15592) - x86: Disable the use of auto-translated PV guests (Andrew Cooper) [Orabug: 26901416] (CVE-2017-15592) - x86: don't allow page_unlock to drop the last type reference (Jan Beulich) [Orabug: 26901404] (CVE-2017-15593) - x86: don't store possibly stale TLB flush time stamp (Jan Beulich) [Orabug: 26901395] (CVE-2017-15588) - x86/mm: Disable PV linear pagetables by default (George Dunlap) [Orabug: 26901366] (CVE-2017-15595) - x86: limit linear page table use to a single level (Jan Beulich) [Orabug: 26901366] (CVE-2017-15595) - x86/HVM: prefill partially used variable on emulation paths (Jan Beulich) [Orabug: 26901350] (CVE-2017-15589) - x86/FLASK: fix unmap-domain-IRQ XSM hook (Jan Beulich) [Orabug: 26901322] (CVE-2017-15590) - x86/IRQ: conditionally preserve irq <-> pirq mapping on map error paths (Jan Beulich) [Orabug: 26901322] (CVE-2017-15590) - x86/MSI: disallow redundant enabling (Jan Beulich) [Orabug: 26901322] (CVE-2017-15590) - x86: enforce proper privilege when (un)mapping pIRQ-s (Jan Beulich) [Orabug: 26901322] (CVE-2017-15590) - x86: don't allow MSI pIRQ mapping on unowned device (Jan Beulich) [Orabug: 26901322] (CVE-2017-15590) - gnttab: fix pin count / page reference race (Jan Beulich) [Orabug: 26901282] (CVE-2017-15597)
    last seen 2019-02-21
    modified 2018-11-19
    plugin id 104249
    published 2017-10-30
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104249
    title OracleVM 3.4 : xen (OVMSA-2017-0166)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2017-0162.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - BUILDINFO: OVMF commit=173bf5c847e3ca8b42c11796ce048d8e2e916ff8 - BUILDINFO: xen commit=41067cbb7a1ecab6aa2ca0d8d40a4c9f36c5e76e - BUILDINFO: QEMU upstream commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff - BUILDINFO: QEMU traditional commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba - BUILDINFO: IPXE commit=9a93db3f0947484e30e753bbd61a10b17336e20e - BUILDINFO: SeaBIOS commit=7d9cbe613694924921ed1a6f8947d711c5832eee - x86/cpu: fix IST handling during PCPU bringup (Andrew Cooper) [Orabug: 26901421] (CVE-2017-15594) - x86/shadow: Don't create self-linear shadow mappings for 4-level translated guests (Andrew Cooper) [Orabug: 26901413] (CVE-2017-15592) - x86: Disable the use of auto-translated PV guests (Andrew Cooper) [Orabug: 26901413] (CVE-2017-15592) - x86: don't allow page_unlock to drop the last type reference (Jan Beulich) [Orabug: 26901401] (CVE-2017-15593) - x86: don't store possibly stale TLB flush time stamp (Jan Beulich) [Orabug: 26901391] (CVE-2017-15588) - x86/mm: Disable PV linear pagetables by default (George Dunlap) [Orabug: 26901363] (CVE-2017-15595) - x86: limit linear page table use to a single level (Jan Beulich) [Orabug: 26901363] (CVE-2017-15595) - x86/HVM: prefill partially used variable on emulation paths (Jan Beulich) [Orabug: 26901338] (CVE-2017-15589) - x86/FLASK: fix unmap-domain-IRQ XSM hook (Jan Beulich) [Orabug: 26901311] (CVE-2017-15590) - x86/IRQ: conditionally preserve irq <-> pirq mapping on map error paths (Jan Beulich) [Orabug: 26901311] (CVE-2017-15590) - x86/MSI: disallow redundant enabling (Jan Beulich) [Orabug: 26901311] (CVE-2017-15590) - x86: enforce proper privilege when (un)mapping pIRQ-s (Jan Beulich) [Orabug: 26901311] (CVE-2017-15590) - x86: don't allow MSI pIRQ mapping on unowned device (Jan Beulich) [Orabug: 26901311] (CVE-2017-15590) - gnttab: fix pin count / page reference race (Jan Beulich) [Orabug: 26901277] (CVE-2017-15597)
    last seen 2019-02-21
    modified 2018-11-19
    plugin id 104201
    published 2017-10-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104201
    title OracleVM 3.2 / 3.3 / 3.4 : xen (OVMSA-2017-0162)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-3242-1.NASL
    description This update for xen fixes several issues. These security issues were fixed : - bsc#1068187: Failure to recognize errors in the Populate on Demand (PoD) code allowed for DoS (XSA-246) - bsc#1068191: Missing p2m error checking in PoD code allowed unprivileged guests to retain a writable mapping of freed memory leading to information leaks, privilege escalation or DoS (XSA-247). - 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#1063123) - CVE-2017-15597: A grant copy operation being done on a grant of a dying domain allowed a malicious guest administrator to corrupt hypervisor memory, allowing for DoS or potentially privilege escalation and information leaks (bsc#1061075). - CVE-2017-15595: x86 PV guest OS users were able to cause a DoS (unbounded recursion, stack consumption, and hypervisor crash) or possibly gain privileges via crafted page-table stacking (bsc#1061081). - CVE-2017-15592: x86 HVM guest OS users were able to cause a DoS (hypervisor crash) or possibly gain privileges because self-linear shadow mappings were mishandled for translated guests (bsc#1061086). - 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#1056336) 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 105149
    published 2017-12-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=105149
    title SUSE SLES11 Security Update : xen (SUSE-SU-2017:3242-1)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2017-C4AA57D753.NASL
    description pin count / page reference race in grant table code [XSA-236, CVE-2017-15597] 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 2018-02-02
    plugin id 104607
    published 2017-11-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104607
    title Fedora 25 : xen (2017-c4aa57d753)
  • NASL family Misc.
    NASL id CITRIX_XENSERVER_CTX229057.NASL
    description The version of Citrix XenServer installed on the remote host is missing a security hotfix. It is, therefore, affected by a memory corruption vulnerability as noted in the CTX229057 advisory.
    last seen 2019-02-21
    modified 2018-07-09
    plugin id 104174
    published 2017-10-26
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104174
    title Citrix XenServer Pin Count / Page Reference Grant Table Code Guest-to-Host Memory Corruption Vulnerability (CTX229057)
refmap via4
bid 101564
confirm
debian DSA-4050
mlist
  • [debian-lts-announce] 20181018 [SECURITY] [DLA 1549-1] xen security update
  • [oss-security] 20171024 Xen Security Advisory 236 (CVE-2017-15597) - pin count / page reference race in grant table code
sectrack 1039653
Last major update 30-10-2017 - 10:29
Published 30-10-2017 - 10:29
Last modified 19-10-2018 - 06:29
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