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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 3.2.15-1 | — |
| Debian 13 | linux | 3.2.15-1 | — |
| Debian 12 | linux | 3.2.15-1 | — |
| Debian 6.0 | linux-2.6 | 2.6.32-48squeeze3 | DSA-2668-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +15 | 2.6.32-358.6.1.el6 | RHSA-2013:0744 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6.3 EUS | perf +15 | 2.6.32-279.31.1.el6 | RHSA-2013:0928 |
| RHEL 6.2 EUS | perf +15 | 2.6.32-220.39.1.el6 | RHSA-2013:1026 |
| Red Hat MRG 2 | kernel-rt +11 | 3.6.11-rt28.20.el6rt | RHSA-2013:0566 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- Google Android Kernel 2.6 - Local Denial of Service Crash (PoC) EDB-23248 · dos · Dec 9, 2012 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 5
- RHSA-2013:1026 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2013:0928 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2013:0744 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2013:0566 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2668-1 linux-2.6 - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://bugzilla.redhat.com/show_bug.cgi?id=916115
- RHSA-2013:0928 vendor-advisory
- [oss-security] 20130226 Re: CVE request - Linux kernel: VFAT slab-based buffer overflow mailing-list
- https://github.com/torvalds/linux/commit/0720a06a7518c9d0c0125bd5d1f3b6264c55c3dd
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0720a06a7518c9d0c0125bd5d1f3b6264c55c3dd
- 23248 exploit
- RHSA-2013:0744 vendor-advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/patch-3.3.bz2
- 58200 vdb-entry
- 88310 vdb-entry
- RHSA-2013:1026 vendor-advisory