CVE-2014-7842
Race condition in arch/x86/kvm/x86.c in the Linux kernel before 3.17.4 allows guest OS users to cause a denial of service (guest OS crash) via a crafted application that performs an MMIO transaction
02 Description
Race condition in arch/x86/kvm/x86.c in the Linux kernel before 3.17.4 allows guest OS users to cause a denial of service (guest OS crash) via a crafted application that performs an MMIO transaction
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
- 0.37% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 31.0% 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
- Moderate. 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
- 2014-11-30 01:00Z11 YR AGO
- Last updated
- 2024-08-06 13:03Z2 YR AGO
- Reserved
- 2014-10-03
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
- Data version
- 5.1
- Document digest
- 47f20f289ff0dd383edb5f26f1deb181ef0390bfd22d92f81e5692f1ca9e8ab6
05 Affected products
06 References
- rhn.redhat.comRHSA-2016:0855http://rhn.redhat.com/errata/RHSA-2016-0855.html
- lists.opensuse.orgSUSE-SU-2015:0736http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
- www.oracle.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- www.securityfocus.com71078http://www.securityfocus.com/bid/71078
- lists.opensuse.orgSUSE-SU-2015:0652http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html
- www.openwall.com[oss-security] 20141113 CVE-2014-7842 Linux kernel: kvm: reporting emulation failures to userspacehttp://www.openwall.com/lists/oss-security/2014/11/13/7
- www.oracle.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- git.kernel.orghttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a2b9e6c1a35afcc0973acb72e591c714e78885ff
- secunia.com62326http://secunia.com/advisories/62326
- github.comhttps://github.com/torvalds/linux/commit/a2b9e6c1a35afcc0973acb72e591c714e78885ff
- www.oracle.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- lists.opensuse.orgSUSE-SU-2015:0481http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
- lists.opensuse.orgopenSUSE-SU-2015:0566http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
- secunia.com62336http://secunia.com/advisories/62336
- www.kernel.orghttps://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1163762
- secunia.com62305http://secunia.com/advisories/62305
07 Fixed in
Debian 12
- linux Fixed in 3.16.7-ckt2-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 3.16.7-ckt2-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 3.16.7-ckt2-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- linux Fixed in 3.13.0-44.73
- linux-lts-utopic Fixed in 3.16.0-29.39~14.04.1
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.