CVE-2009-0676

Severity: low (CVSS 2.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-02-22 · updated 2026-06-16
Weakness: CWE-264

Description

The sock_getsockopt function in net/core/sock.c in the Linux kernel before 2.6.28.6 does not initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel memory via an SO_BSDCOMPAT getsockopt request.

Affected products

Linux kernel: through 2.6.28.5; 2.6, 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4 (+305)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=df0bca049d01c0ee94afb7cd5dfd959541e6c8da
http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html
http://lkml.org/lkml/2009/2/12/123
http://marc.info/?l=linux-kernel&m=123540732700371&w=2
http://openwall.com/lists/oss-security/2009/02/20/1
http://patchwork.kernel.org/patch/6816/
http://rhn.redhat.com/errata/RHSA-2009-0459.html
http://secunia.com/advisories/33758
http://secunia.com/advisories/34394
http://secunia.com/advisories/34502

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