Buffer overflow in Linux kernel - CVE-2013-4387

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Main Vulnerability Database Vulnerabilities #VU42474

Buffer overflow in Linux kernel - CVE-2013-4387

Published: October 10, 2013 / Updated: August 10, 2020


Vulnerability identifier: #VU42474
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2013-4387
CWE-ID: CWE-119
Exploitation vector: Adjecent network
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

net/ipv6/ip6_output.c in the Linux kernel through 3.11.4 does not properly determine the need for UDP Fragmentation Offload (UFO) processing of small packets after the UFO queueing of a large packet, which allows remote attackers to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via network traffic that triggers a large response packet.


Affected software

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-image-2.6.32-365-ec2 (Ubuntu package)
linux-lts-quantal (Ubuntu package)
linux-lts-raring (Ubuntu package)

How to mitigate CVE-2013-4387

Install update from vendor's website.

linux (Ubuntu package) - addressed in versions 2.6.32-61.124, 3.2.0-57.87, 3.5.0-43.66, 3.8.0-34.49, 3.11.0-14.21
linux-image-2.6.32-365-ec2 (Ubuntu package) - update to 2.6.32-365.79
linux-lts-quantal (Ubuntu package) - update to 3.5.0-43.66~precise1
linux-lts-raring (Ubuntu package) - update to 3.8.0-34.49~precise1

External References

Related Security Bulletins