Input validation error in Linux kernel - CVE-2014-2523

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Main Vulnerability Database Vulnerabilities #VU41890

Input validation error in Linux kernel - CVE-2014-2523

Published: March 24, 2014 / Updated: August 10, 2020


Vulnerability identifier: #VU41890
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2014-2523
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

net/netfilter/nf_conntrack_proto_dccp.c in the Linux kernel through 3.13.6 uses a DCCP header pointer incorrectly, which allows remote attackers to cause a denial of service (system crash) or possibly execute arbitrary code via a DCCP packet that triggers a call to the (1) dccp_new, (2) dccp_packet, or (3) dccp_error function.


Affected software

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-lts-quantal (Ubuntu package)
linux-lts-raring (Ubuntu package)

How to mitigate CVE-2014-2523

Install update from vendor's website.

linux (Ubuntu package) - addressed in versions 2.6.32-58.120, 3.2.0-63.95, 3.11.0-22.38
linux-lts-quantal (Ubuntu package) - update to 3.5.0-51.76~precise1
linux-lts-raring (Ubuntu package) - update to 3.8.0-41.60~precise1

External References

Related Security Bulletins