CVE-2012-2119
Buffer overflow in the macvtap device driver in the Linux kernel before 3.4.5, when running in certain configurations, allows privileged KVM guest users to cause a denial of service (crash) via a long
02 Description
Buffer overflow in the macvtap device driver in the Linux kernel before 3.4.5, when running in certain configurations, allows privileged KVM guest users to cause a denial of service (crash) via a long
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
- 0.71% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 53.1% 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 2026-06-16.
- 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
- 2013-01-22 23:00Z13 YR AGO
- Last updated
- 2024-08-06 19:26Z2 YR AGO
- Reserved
- 2012-04-04
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
- Data version
- 5.1
- Document digest
- 736094e536ede258f6df46661b2aa038af1082698225180159485cc6c9af1858
05 Affected products
06 References
- www.kernel.orghttp://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5
- rhn.redhat.comRHSA-2012:0743http://rhn.redhat.com/errata/RHSA-2012-0743.html
- github.comhttps://github.com/torvalds/linux/commit/b92946e2919134ebe2a4083e4302236295ea2a73
- git.kernel.orghttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b92946e2919134ebe2a4083e4302236295ea2a73
- bugzilla.redhat.comhttp://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=814278
- marc.info[linux-netdev] 20120416 [PATCH 3/6] macvtap: zerocopy: validate vector length before pinning user pageshttp://marc.info/?l=linux-netdev&m=133455718001608&w=2
- ubuntu.comUSN-1529-1http://ubuntu.com/usn/usn-1529-1
- lists.opensuse.orgopenSUSE-SU-2013:0925http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
- oss.oracle.comhttps://oss.oracle.com/git/?p=redpatch.git%3Ba=commit%3Bh=4aae94d1c7b32316911c86176c0ed4f8ed62da73
- www.openwall.com[oss-security] 20120419 Re: CVE request -- kernel: macvtap: zerocopy: vector length is not validated before pinning user pageshttp://www.openwall.com/lists/oss-security/2012/04/19/14
07 Fixed in
Debian 12
- linux Fixed in 3.2.20-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 3.2.20-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 3.2.20-1
Source: Debian Security Tracker, the Debian security team. 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.