Description
Buffer overflow in the ecryptfs_uid_hash macro in fs/ecryptfs/messaging.c in the eCryptfs subsystem in the Linux kernel before 2.6.35 might allow local users to gain privileges or cause a denial of service (system crash) via unspecified vectors.
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 5.0 | linux-2.6 | 2.6.26-25lenny1 | DSA-2110-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +14 | 2.6.32-71.14.1.el6 | RHSA-2011:0007 |
| RHEL 5 | kernel +12 | 2.6.18-194.17.1.el5 | RHSA-2010:0723 |
Advisories 3
- RHSA-2011:0007 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2010:0723 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2110-1 linux-2.6 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
References
- RHSA-2010:0723 vendor-advisory
- 20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console mailing-list
- 46397 third-party-advisory
- MDVSA-2010:198 vendor-advisory
- RHSA-2011:0007 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=611385
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a6f80fb7b5986fda663d94079d3bba0937a6b6ff
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- http://support.avaya.com/css/P8/documents/100113326
- 42890 third-party-advisory
- MDVSA-2010:172 vendor-advisory