CVE-2013-4591

Severity: medium (CVSS 6.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-11-20 · updated 2026-06-16
Weakness: CWE-119

Description

Buffer overflow in the __nfs4_get_acl_uncached function in fs/nfs/nfs4proc.c in the Linux kernel before 3.7.2 allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via a getxattr system call for the system.nfs4_acl extended attribute of a pathname on an NFSv4 filesystem.

Affected products

Linux kernel: through 3.7.1; 3.0-rc1, 3.0-rc2, 3.0-rc3, 3.0-rc4, 3.0-rc5, 3.0-rc6 (+197)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7d3e91a89b7adbc2831334def9e494dd9892f9af
http://rhn.redhat.com/errata/RHSA-2013-1645.html
http://rhn.redhat.com/errata/RHSA-2014-0284.html
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.2
http://www.openwall.com/lists/oss-security/2013/11/18/2
http://www.securityfocus.com/bid/63791
https://bugzilla.redhat.com/show_bug.cgi?id=1031678
https://github.com/torvalds/linux/commit/7d3e91a89b7adbc2831334def9e494dd9892f9af
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7d3e91a89b7adbc2831334def9e494dd9892f9af
http://rhn.redhat.com/errata/RHSA-2013-1645.html
http://rhn.redhat.com/errata/RHSA-2014-0284.html
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.2

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