CVE-2015-5307
The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment
02 Description
The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.56% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 46.7% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2015-11-16 11:00Z10 YR AGO
- Last updated
- 2024-08-06 06:41Z2 YR AGO
- Reserved
- 2015-07-01
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 410f62da77268485769f033cb7780e9719b6b6ff80eb267691371fd5eddee004
05 Affected products
06 References
- rhn.redhat.comRHSA-2015:2636http://rhn.redhat.com/errata/RHSA-2015-2636.html
- www.oracle.comhttp://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- lists.fedoraproject.orgFEDORA-2015-f150b2a8c8http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172187.html
- lists.opensuse.orgSUSE-SU-2015:2350http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00031.html
- kb.juniper.nethttps://kb.juniper.net/JSA10783
- www.debian.orgDSA-3454http://www.debian.org/security/2016/dsa-3454
- www.openwall.com[oss-security] 20151110 Re: CVE-2015-5307 kernel: kvm: guest to host DoS by triggering an infinite loop in microcode via #AC exceptionhttp://www.openwall.com/lists/oss-security/2015/11/10/6
- rhn.redhat.comRHSA-2015:2645http://rhn.redhat.com/errata/RHSA-2015-2645.html
- www.ubuntu.comUSN-2802-1http://www.ubuntu.com/usn/USN-2802-1
- lists.opensuse.orgopenSUSE-SU-2015:2250http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html
- www.oracle.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- www.ubuntu.comUSN-2806-1http://www.ubuntu.com/usn/USN-2806-1
- lists.opensuse.orgSUSE-SU-2015:2194http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.html
- www.oracle.comhttp://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
- git.kernel.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54a20552e1eae07aa240fa370a0293e006b5faed
- lists.opensuse.orgopenSUSE-SU-2015:2232http://lists.opensuse.org/opensuse-updates/2015-12/msg00039.html
- www.ubuntu.comUSN-2805-1http://www.ubuntu.com/usn/USN-2805-1
- xenbits.xen.orghttp://xenbits.xen.org/xsa/advisory-156.html
- lists.opensuse.orgSUSE-SU-2016:0354http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.html
- lists.fedoraproject.orgFEDORA-2015-668d213dc3http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172300.html
- www.ubuntu.comUSN-2807-1http://www.ubuntu.com/usn/USN-2807-1
- lists.opensuse.orgSUSE-SU-2015:2339http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00026.html
- lists.opensuse.orgSUSE-SU-2015:2108http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00035.html
- www.ubuntu.comUSN-2801-1http://www.ubuntu.com/usn/USN-2801-1
- www.oracle.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- lists.fedoraproject.orgFEDORA-2015-394835a3f6http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172435.html
- www.debian.orgDSA-3414http://www.debian.org/security/2015/dsa-3414
- support.citrix.comhttp://support.citrix.com/article/CTX202583
- www.ubuntu.comUSN-2800-1http://www.ubuntu.com/usn/USN-2800-1
- www.securitytracker.com1034105http://www.securitytracker.com/id/1034105
- lists.opensuse.orgSUSE-SU-2016:2074http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
- www.ubuntu.comUSN-2804-1http://www.ubuntu.com/usn/USN-2804-1
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1277172
- rhn.redhat.comRHSA-2016:0046http://rhn.redhat.com/errata/RHSA-2016-0046.html
- www.debian.orgDSA-3396http://www.debian.org/security/2015/dsa-3396
- www.securityfocus.com77528http://www.securityfocus.com/bid/77528
- www.ubuntu.comUSN-2803-1http://www.ubuntu.com/usn/USN-2803-1
- github.comhttps://github.com/torvalds/linux/commit/54a20552e1eae07aa240fa370a0293e006b5faed
07 Fixed in
Debian 12
- linux Fixed in 4.2.6-1
- xen Fixed in 4.8.0~rc3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 4.2.6-1
- xen Fixed in 4.8.0~rc3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 4.2.6-1
- xen Fixed in 4.8.0~rc3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- linux Fixed in 3.13.0-68.111
- linux-lts-utopic Fixed in 3.16.0-53.72~14.04.1
- linux-lts-vivid Fixed in 3.19.0-33.38~14.04.1
- linux-lts-wily Fixed in 4.2.0-18.22~14.04.1
- virtualbox Fixed in 4.3.36-dfsg-1+deb8u1ubuntu1.14.04.1
- xen Fixed in 4.4.2-0ubuntu0.14.04.3
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- xen Fixed in 4.5.1-0ubuntu2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.