SB2014101302 - Resource management error in Linux kernel
Published: October 13, 2014 Updated: August 10, 2020
Security Bulletin ID
SB2014101302
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 security vulnerability.
1) Resource management error (CVE-ID: CVE-2014-7283)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The xfs_da3_fixhashpath function in fs/xfs/xfs_da_btree.c in the xfs implementation in the Linux kernel before 3.14.2 does not properly compare btree hash values, which allows local users to cause a denial of service (filesystem corruption, and OOPS or panic) via operations on directories that have hash collisions, as demonstrated by rmdir operations.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c88547a8119e3b581318ab65e9b72f27f23e641d
- http://marc.info/?l=linux-xfs&m=139590613002926&w=2
- http://rhn.redhat.com/errata/RHSA-2014-1943.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.2
- http://www.openwall.com/lists/oss-security/2014/10/01/29
- http://www.securityfocus.com/bid/70261
- https://bugzilla.redhat.com/show_bug.cgi?id=1148777
- https://github.com/torvalds/linux/commit/c88547a8119e3b581318ab65e9b72f27f23e641d