Use after free in Linux kernel - CVE-2014-2568
Published: March 24, 2014 / Updated: May 10, 2019
Vulnerability identifier: #VU92806
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2014-2568
CWE-ID: CWE-416
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2014-2568
Install update from vendor's repository.
Sources
- 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