#VU31400 Data Handling in Linux kernel - CVE-2006-5331
Published: October 29, 2017 / Updated: July 18, 2020
Vulnerability identifier: #VU31400
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2006-5331
CWE-ID: CWE-19
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
The altivec_unavailable_exception function in arch/powerpc/kernel/traps.c in the Linux kernel before 2.6.19 on 64-bit systems mishandles the case where CONFIG_ALTIVEC is defined and the CPU actually supports Altivec, but the Altivec support was not detected by the kernel, which allows local users to cause a denial of service (panic) by triggering execution of an Altivec instruction.
Remediation
Install update from vendor's website.
External links
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6c4841c2b6c32a134f9f36e5e08857138cc12b10
- http://www.linuxgrill.com/anonymous/kernel/v2.6/ChangeLog-2.6.19
- https://bugzilla.suse.com/show_bug.cgi?id=213229
- https://github.com/torvalds/linux/commit/6c4841c2b6c32a134f9f36e5e08857138cc12b10