CVE-2012-2375

MEDIUM

Description

The __nfs4_get_acl_uncached function in fs/nfs/nfs4proc.c in the NFSv4 implementation in the Linux kernel before 3.3.2 uses an incorrect length variable during a copy operation, which allows remote NFS servers to cause a denial of service (OOPS) by sending an excessive number of bitmap words in an FATTR4_ACL reply. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-4131.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=20e0fa98b751facf9a1101edaefbc19c82616a68

http://marc.info/?l=bugtraq&m=139447903326211&w=2

http://rhn.redhat.com/errata/RHSA-2012-1580.html

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.2

http://www.openwall.com/lists/oss-security/2012/05/18/13

https://bugzilla.redhat.com/show_bug.cgi?id=822869

https://github.com/torvalds/linux/commit/20e0fa98b751facf9a1101edaefbc19c82616a68

Details

Source: MITRE

Published: 2012-06-13

Updated: 2016-08-23

Type: CWE-189

Risk Information

CVSS v2.0

Base Score: 4.6

Vector: AV:A/AC:H/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 3.2

Severity: MEDIUM