Resource management error in Linux kernel - CVE-2011-1090

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Main Vulnerability Database Vulnerabilities #VU45061

Resource management error in Linux kernel - CVE-2011-1090

Published: May 9, 2011 / Updated: August 11, 2020


Vulnerability identifier: #VU45061
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2011-1090
CWE-ID: CWE-399
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 __nfs4_proc_set_acl function in fs/nfs/nfs4proc.c in the Linux kernel before 2.6.38 stores NFSv4 ACL data in memory that is allocated by kmalloc but not properly freed, which allows local users to cause a denial of service (panic) via a crafted attempt to set an ACL.


Affected software

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-image-2.6.32-317-ec2 (Ubuntu package)
linux-lts-backport-maverick (Ubuntu package)

How to mitigate CVE-2011-1090

Install update from vendor's website.

linux (Ubuntu package) - addressed in versions 2.6.32-33.70, 2.6.35-30.56
linux-image-2.6.32-317-ec2 (Ubuntu package) - update to 2.6.32-317.36
linux-lts-backport-maverick (Ubuntu package) - update to 2.6.35-30.56~lucid1

External References

Related Security Bulletins