Linux kernel does not properly save or restore EFLAGS during...
Vulnerability Description
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 Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.novell.com/linux/security/advisories/2006_79_kernel.html
- http://secunia.com/advisories/23361
- http://secunia.com/advisories/23593
- http://secunia.com/advisories/23384
- http://www.securityfocus.com/bid/21851
- http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=47a5c6fa0e204a2b63309c648bb2fde36836c826
- http://secunia.com/advisories/23474
- http://www.securityfocus.com/archive/1/471457
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:002
- http://www.ubuntu.com/usn/usn-395-1
- http://secunia.com/advisories/25691
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CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.