Description
The fst_get_iface function in drivers/net/wan/farsync.c in the Linux kernel before 3.11.7 does not properly initialize a certain data structure, which allows local users to obtain sensitive information from kernel memory by leveraging the CAP_NET_ADMIN capability for an SIOCWANDEV ioctl call.
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 | 3.12.6-1 | — |
| Debian 13 | linux | 3.12.6-1 | — |
| Debian 12 | linux | 3.12.6-1 | — |
| Debian 6.0 | linux-2.6 | 2.6.32-48squeeze5 | DSA-2906-1 |
Advisories 1
- DSA-2906-1 linux-2.6 - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- USN-2129-1 vendor-advisory
- USN-2128-1 vendor-advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.11.7
- 64952 vdb-entry
- linux-kernel-cve20141444-info-disc(90443) vdb-entry
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=96b340406724d87e4621284ebac5e059d67b2194
- [oss-security] 20140115 Re: CVE request: assorted kernel infoleak security fixes mailing-list
- https://github.com/torvalds/linux/commit/96b340406724d87e4621284ebac5e059d67b2194
- https://bugzilla.redhat.com/show_bug.cgi?id=1053610