CVE-2012-2119

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Summary

CVECVE-2012-2119
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2013-01-22 23:55:01 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionBuffer 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.

Risk And Classification

Primary CVSS: v2.0 5.2 from [email protected]

AV:A/AC:M/Au:S/C:N/I:N/A:C

Problem Types: CWE-119 | n/a

CVSS v2.0 Breakdown

Access Vector
Adjacent
Access Complexity
Medium
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Complete

AV:A/AC:M/Au:S/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel 3.4 All All All
Operating System Linux Linux Kernel 3.4.1 All All All
Operating System Linux Linux Kernel 3.4.2 All All All
Operating System Linux Linux Kernel 3.4.3 All All All
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
'[PATCH 3/6] macvtap: zerocopy: validate vector length before pinning user pages' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info
macvtap: zerocopy: validate vectors before building skb · torvalds/linux@b92946e · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com
USN-1529-1: Linux kernel vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 ubuntu.com
oss-security - Re: CVE request -- kernel: macvtap: zerocopy: vector length is not validated before pinning user pages af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5 af854a3a-2127-422b-91ae-364da2661108 www.kernel.org
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
oss.oracle.com - redpatch.git/commit af854a3a-2127-422b-91ae-364da2661108 oss.oracle.com
[security-announce] openSUSE-SU-2013:0925-1: important: kernel: security af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
814278 – (CVE-2012-2119) CVE-2012-2119 kernel: macvtap: zerocopy: vector length is not validated before pinning user pages af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
oss.oracle.com - redpatch.git/commit MITRE oss.oracle.com
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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