Description
The X.25 implementation in the Linux kernel before 2.6.36.2 does not properly parse facilities, which allows remote attackers to cause a denial of service (heap memory corruption and panic) or possibly have unspecified other impact via malformed (1) X25_FAC_CALLING_AE or (2) X25_FAC_CALLED_AE data, related to net/x25/x25_facilities.c and net/x25/x25_in.c, a different vulnerability than CVE-2010-4164.
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 | 2.6.26-26lenny1 | DSA-2126-1 |
Advisories 1
- DSA-2126-1 linux-2.6 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
References
- [netdev] 20101102 [SECURITY] memory corruption in X.25 facilities parsing mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=649693
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36.2
- [oss-security] 20101104 Re: CVE request: X.25 remote DoS mailing-list
- ADV-2011-0375 vdb-entry
- [oss-security] 20101103 CVE request: X.25 remote DoS mailing-list
- openSUSE-SU-2013:0925 vendor-advisory
- SUSE-SA:2011:008 vendor-advisory
- MDVSA-2011:029 vendor-advisory
- 43291 third-party-advisory
- [netdev] 20101104 Re: [SECURITY] memory corruption in X.25 facilities parsing mailing-list
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a6331d6f9a4298173b413cf99a40cc86a9d92c37
- DSA-2126 vendor-advisory