Information disclosure in Linux kernel - CVE-2012-3430

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Main Vulnerability Database Vulnerabilities #VU43443

Information disclosure in Linux kernel - CVE-2012-3430

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


Vulnerability identifier: #VU43443
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-3430
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The rds_recvmsg function in net/rds/recv.c in the Linux kernel before 3.0.44 does not initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via a (1) recvfrom or (2) recvmsg system call on an RDS socket.


Affected software

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

How to mitigate CVE-2012-3430

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

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins