Input validation error in Linux kernel - CVE-2012-3412

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Main Vulnerability Database Vulnerabilities #VU43442

Input validation error in Linux kernel - CVE-2012-3412

Published: October 3, 2012 / Updated: August 11, 2020


Vulnerability identifier: #VU43442
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-3412
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 perform a denial of service (DoS) attack.

The sfc (aka Solarflare Solarstorm) driver in the Linux kernel before 3.2.30 allows remote attackers to cause a denial of service (DMA descriptor consumption and network-controller outage) via crafted TCP packets that trigger a small MSS value.


Affected software

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-lts-backport-natty (Ubuntu package)
linux-lts-backport-oneiric (Ubuntu package)

How to mitigate CVE-2012-3412

Install update from vendor's website.

linux (Ubuntu package) - addressed in versions 2.6.32-43.97, 2.6.38-16.67, 3.0.0-26.42, 3.2.0-31.50
linux-lts-backport-natty (Ubuntu package) - update to 2.6.38-16.67~lucid1
linux-lts-backport-oneiric (Ubuntu package) - update to 3.0.0-26.42~lucid1

External References

Related Security Bulletins