CVE-2012-2119
medium
CVSS v3
—
CVSS v4 NEW
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VIR risk
5.2
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 descriptor with a long vector length.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 3.2.20-1 |
| debian | bullseye | fixed | 3.2.20-1 |
| debian | forky | fixed | 3.2.20-1 |
| debian | sid | fixed | 3.2.20-1 |
| debian | trixie | fixed | 3.2.20-1 |
| linux-kernel | affected | | |
| linux-kernel | 3.4 | affected | |
| linux-kernel | 3.4.1 | affected | |
| linux-kernel | 3.4.2 | affected | |
| linux-kernel | 3.4.3 | affected | |
References
- http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=814278
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b92946e2919134ebe2a4083e4302236295ea2a73
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
- http://marc.info/?l=linux-netdev&m=133455718001608&w=2
- http://rhn.redhat.com/errata/RHSA-2012-0743.html
- http://ubuntu.com/usn/usn-1529-1
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5
- http://www.openwall.com/lists/oss-security/2012/04/19/14
- https://github.com/torvalds/linux/commit/b92946e2919134ebe2a4083e4302236295ea2a73
- https://oss.oracle.com/git/?p=redpatch.git%3Ba=commit%3Bh=4aae94d1c7b32316911c86176c0ed4f8ed62da73
- https://security-tracker.debian.org/tracker/CVE-2012-2119
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.