Description
The aun_incoming function in net/econet/af_econet.c in the Linux kernel before 2.6.37-rc6, when Econet is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by sending an Acorn Universal Networking (AUN) packet over UDP.
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 | 2.6.26-26lenny2 | DSA-2153-1 |
| Debian 5.0 | user-mode-linux | 2.6.26-1um-2+26lenny2 | DSA-2153-1 |
Advisories 1
- DSA-2153-1 linux-2.6 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
References
- [oss-security] 20101209 Re: CVE request: kernel: NULL pointer dereference in AF_ECONET mailing-list
- 45321 vdb-entry
- [netdev] 20101209 NULL dereference in econet AUN-over-UDP receive mailing-list
- [oss-security] 20101208 CVE request: kernel: NULL pointer dereference in AF_ECONET mailing-list
- ADV-2011-0375 vdb-entry
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc6
- SUSE-SA:2011:008 vendor-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4e085e76cbe558b79b54cbab772f61185879bc64
- 43291 third-party-advisory
- [netdev] 20101209 Re: NULL dereference in econet AUN-over-UDP receive mailing-list