SB2013082503 - Input validation error in Linux kernel
Published: August 25, 2013 Updated: August 10, 2020
Security Bulletin ID
SB2013082503
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) Input validation error (CVE-ID: CVE-2013-4220)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The bad_mode function in arch/arm64/kernel/traps.c in the Linux kernel before 3.9.5 on the ARM64 platform allows local users to cause a denial of service (system crash) via vectors involving an attempted register access that triggers an unexpected value in the Exception Syndrome Register (ESR).
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9955ac47f4ba1c95ecb6092aeaefb40a22e99268
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.9.5
- http://www.openwall.com/lists/oss-security/2013/08/08/12
- https://bugzilla.redhat.com/show_bug.cgi?id=996380
- https://github.com/torvalds/linux/commit/9955ac47f4ba1c95ecb6092aeaefb40a22e99268