CVE-2006-5173
LOW severity · CVSS 2.1
2.1CVSS LOW
Summary
Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allows local users to cause a denial of service (process crash), as demonstrated using a process that sets the Alignment Check flag (EFLAGS 0x40000), which triggers a SIGBUS in other processes that have an unaligned access.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impactNone
Integrity impactNone
Availability impact—
Exploit probability (EPSS)0%
AV:L/AC:L/Au:N/C:N/I:N/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=47a5c6fa0e204a2b63309c648bb2fde36836c826
- http://secunia.com/advisories/23361
- http://secunia.com/advisories/23384
- http://secunia.com/advisories/23474
- http://secunia.com/advisories/23593
- http://secunia.com/advisories/25691
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:002
- http://www.novell.com/linux/security/advisories/2006_79_kernel.html