CVE-2014-3144

 

Published at: - 11-05-2014 11:55

Last modified: - 21-09-2022 08:44

Total changes: - 2

Description

The (1) BPF_S_ANC_NLATTR and (2) BPF_S_ANC_NLATTR_NEST extension implementations in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 do not check whether a certain length value is sufficiently large, which allows local users to cause a denial of service (integer underflow and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr and __skb_get_nlattr_nest functions before the vulnerability was announced.

Common Vulnerability Scoring System (CVSS)

AV:L/AC:L/Au:N/C:N/I:N/A:C

 

Verification logic

 

Reference

• [oss-security] 20140509 Re: CVE request Linux kernel: filter: prevent nla extensions to peek beyond the end of the message-Mailing List, Patch, Third Party Advisory
• https://github.com/torvalds/linux/commit/05ab8f2647e4221cbdb3856dd7d32bd5407316b3
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=05ab8f2647e4221cbdb3856dd7d32bd5407316b3
• 58990-Broken Link
• 67309-Third Party Advisory, VDB Entry
• 59597-Broken Link
• 60613-Not Applicable
• 59311-Not Applicable
• http://linux.oracle.com/errata/ELSA-2014-3052.html
• USN-2264-1-Third Party Advisory
• USN-2263-1-Third Party Advisory
• USN-2262-1-Third Party Advisory
• USN-2261-1-Third Party Advisory
• USN-2259-1-Third Party Advisory
• USN-2252-1-Third Party Advisory
• USN-2251-1-Third Party Advisory
• DSA-2949-Third Party Advisory

 

Keywords

NVD

 

CVE-2014-3144

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures