SB2014022806 - Input validation error in Linux kernel
Published: February 28, 2014 Updated: August 10, 2020
Security Bulletin ID
SB2014022806
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) Input validation error (CVE-ID: CVE-2014-2039)
CWE-ID: CWE-20 - Improper input validation
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.
arch/s390/kernel/head64.S in the Linux kernel before 3.13.5 on the s390 platform does not properly handle attempted use of the linkage stack, which allows local users to cause a denial of service (system crash) by executing a crafted instruction.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8d7f6690cedb83456edd41c9bd583783f0703bf0
- http://linux.oracle.com/errata/ELSA-2014-0771.html
- http://secunia.com/advisories/59262
- http://secunia.com/advisories/59309
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.5
- http://www.openwall.com/lists/oss-security/2014/02/20/14
- http://www.securityfocus.com/bid/65700
- https://bugzilla.redhat.com/show_bug.cgi?id=1067558
- https://github.com/torvalds/linux/commit/8d7f6690cedb83456edd41c9bd583783f0703bf0