CVE-2013-1773

Severity: medium (CVSS 6.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-02-28 · updated 2026-06-16
Weakness: CWE-119

Description

Buffer overflow in the VFAT filesystem implementation in the Linux kernel before 3.3 allows local users to gain privileges or cause a denial of service (system crash) via a VFAT write operation on a filesystem with the utf8 mount option, which is not properly handled during UTF-8 to UTF-16 conversion.

Affected products

Linux kernel: through 3.3; 3.0-rc1, 3.0-rc2, 3.0-rc3, 3.0-rc4, 3.0-rc5, 3.0-rc6 (+103)
Red Hat Enterprise Linux: 6.0
RedHat Enterprise Mrg: 2.0

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0720a06a7518c9d0c0125bd5d1f3b6264c55c3dd
http://rhn.redhat.com/errata/RHSA-2013-0744.html
http://rhn.redhat.com/errata/RHSA-2013-0928.html
http://rhn.redhat.com/errata/RHSA-2013-1026.html
http://www.exploit-db.com/exploits/23248/
http://www.kernel.org/pub/linux/kernel/v3.x/patch-3.3.bz2
http://www.openwall.com/lists/oss-security/2013/02/26/8
http://www.osvdb.org/88310
http://www.securityfocus.com/bid/58200
https://bugzilla.redhat.com/show_bug.cgi?id=916115
https://github.com/torvalds/linux/commit/0720a06a7518c9d0c0125bd5d1f3b6264c55c3dd
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0720a06a7518c9d0c0125bd5d1f3b6264c55c3dd

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