CVE-2014-3145

Public Exploit

Description

The BPF_S_ANC_NLATTR_NEST extension implementation in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 uses the reverse order in a certain subtraction, which allows local users to cause a denial of service (over-read and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr_nest function before the vulnerability was announced.

Category

4.9
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.09%
Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2014/05/09/6 patch mailing list third party advisory
http://www.ubuntu.com/usn/USN-2263-1 third party advisory vendor advisory
http://www.debian.org/security/2014/dsa-2949 third party advisory vendor advisory
https://source.android.com/security/bulletin/2017-04-01 third party advisory patch
http://www.ubuntu.com/usn/USN-2261-1 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2252-1 third party advisory vendor advisory
http://linux.oracle.com/errata/ELSA-2014-3052.html third party advisory
http://secunia.com/advisories/58990 third party advisory broken link
http://secunia.com/advisories/60613 third party advisory not applicable
http://www.ubuntu.com/usn/USN-2264-1 third party advisory vendor advisory
https://github.com/torvalds/linux/commit/05ab8f2647e4221cbdb3856dd7d32bd5407316b3 patch third party advisory exploit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=05ab8f2647e4221cbdb3856dd7d32bd5407316b3
http://www.ubuntu.com/usn/USN-2262-1 third party advisory vendor advisory
http://www.securityfocus.com/bid/67321 third party advisory vdb entry
http://www.ubuntu.com/usn/USN-2259-1 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2251-1 third party advisory vendor advisory
http://secunia.com/advisories/59311 third party advisory not applicable
http://secunia.com/advisories/59597 third party advisory broken link
http://www.securitytracker.com/id/1038201 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2014-3145?
CVE-2014-3145 has been scored as a medium severity vulnerability.
How to fix CVE-2014-3145?
To fix CVE-2014-3145, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2014-3145 being actively exploited in the wild?
It is possible that CVE-2014-3145 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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