Description
Use-after-free vulnerability in the skb_segment function in net/core/skbuff.c in the Linux kernel through 3.13.6 allows attackers to obtain sensitive information from kernel memory by leveraging the absence of a certain orphaning operation.
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 | 3.13.6-1 | — |
| Debian 13 | linux | 3.13.6-1 | — |
| Debian 12 | linux | 3.13.6-1 | — |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1074589
- [netdev] 20140310 [PATCH 0/5] skbuff: fix skb_segment with zero copy skbs mailing-list
- SUSE-SU-2015:0481 vendor-advisory
- https://github.com/torvalds/linux/commit/1fd819ecb90cc9b822cd84d3056ddba315d3340f
- openSUSE-SU-2015:0566 vendor-advisory
- [netdev] 20140310 [PATCH 5/5] skbuff: skb_segment: orphan frags before copying mailing-list
- [oss-security] 20140310 CVE-2014-0131 -- kernel: net: use-after-free during segmentation with zerocopy mailing-list
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1fd819ecb90cc9b822cd84d3056ddba315d3340f