SB2014032408 - Use after free in Linux kernel
Published: March 24, 2014
Security Bulletin ID
SB2014032408
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use after free (CVE-ID: CVE-2014-2568)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
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.
Remediation
Install update from vendor's website.
References
- http://seclists.org/oss-sec/2014/q1/627
- http://secunia.com/advisories/59599
- http://www.openwall.com/lists/oss-security/2014/03/20/16
- http://www.securityfocus.com/bid/66348
- http://www.ubuntu.com/usn/USN-2240-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1079012
- https://exchange.xforce.ibmcloud.com/vulnerabilities/91922
- https://lkml.org/lkml/2014/3/20/421