Bug 505650 (CVE-2014-2568)

Summary:	Kernel: net: potential information leak when ubuf backed skbs are skb_zerocopy()ied (CVE-2014-2568)
Product:	Gentoo Security	Reporter:	Agostino Sarubbo <ago>
Component:	Kernel	Assignee:	Gentoo Kernel Security <security-kernel>
Status:	RESOLVED FIXED
Severity:	normal	CC:	kernel
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Agostino Sarubbo gentoo-dev

2014-03-25 11:52:51 UTC

CVE-2014-2568 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-2568):

Use-after-free vulnerability in the nfqnl_zcopy function in net/netfilter/nfnetlink_queue_core.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. NOTE: the affected code was moved to the 
skb_zerocopy function in net/core/skbuff.c before the vulnerability was announced.

Comment 1 GLSAMaker/CVETool Bot gentoo-dev

2014-08-10 21:57:15 UTC

CVE-2014-2568 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-2568):
  Use-after-free vulnerability in the nfqnl_zcopy function in
  net/netfilter/nfnetlink_queue_core.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. NOTE: the affected
  code was moved to the skb_zerocopy function in net/core/skbuff.c before the
  vulnerability was announced.

Comment 2 John Helmert III archtester

2022-03-25 19:38:00 UTC

Fixed in 3.14 as 36d5fe6a000790f56039afe26834265db0a3ad4c