Description
The ax25_getname function in net/ax25/af_ax25.c in the Linux kernel before 2.6.37-rc2 does not initialize a certain structure, which allows local users to obtain potentially sensitive information from kernel stack memory by reading a copy of this structure.
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 6.0 | linux-2.6 | 2.6.32-34squeeze1 | DSA-2240-1 |
| Debian 5.0 | linux-2.6 | 2.6.26-26lenny1 | DSA-2264-1, DSA-2126-1 |
Advisories 3
- DSA-2126-1 linux-2.6 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2240-1 linux-2.6 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2264-1 linux-2.6 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc2
- [oss-security] 20101104 Re: CVE request: kernel stack infoleaks mailing-list
- MDVSA-2011:051 vendor-advisory
- [oss-security] 20101102 CVE request: kernel stack infoleaks mailing-list
- [netdev] 20101031 [PATCH 1/3] net: ax25: fix information leak to userland mailing-list
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fe10ae53384e48c51996941b7720ee16995cbcb7
- MDVSA-2011:029 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=649713
- 44630 vdb-entry
- DSA-2126 vendor-advisory