Description
The scm_check_creds function in net/core/scm.c in the Linux kernel before 3.11 performs a capability check in an incorrect namespace, which allows local users to gain privileges via PID spoofing.
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 | 3.11.5-1 | — |
| Debian 13 | linux | 3.11.5-1 | — |
| Debian 12 | linux | 3.11.5-1 | — |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d661684cf6820331feae71146c35da83d794467e
- USN-1995-1 vendor-advisory
- https://github.com/torvalds/linux/commit/d661684cf6820331feae71146c35da83d794467e
- https://bugzilla.redhat.com/show_bug.cgi?id=1004736
- [oss-security] 20130904 Re: CVE request: Kernel PID Spoofing Privilege Escalation Vulnerability mailing-list
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.11.bz2
- USN-1998-1 vendor-advisory