SB2011050903 - Resource management error in Linux kernel
Published: May 9, 2011 Updated: August 11, 2020
Security Bulletin ID
SB2011050903
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Resource management error (CVE-ID: CVE-2011-1090)
CWE-ID: CWE-399 - Resource Management Errors
CVSSv4: 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]
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.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e9e3d724e2145f5039b423c290ce2b2c3d8f94bc
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
- http://openwall.com/lists/oss-security/2011/03/07/12
- http://openwall.com/lists/oss-security/2011/03/07/2
- http://secunia.com/advisories/46397
- http://securitytracker.com/id?1025336
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38
- http://www.securityfocus.com/archive/1/520102/100/0/threaded
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- https://bugzilla.redhat.com/show_bug.cgi?id=682641