CVE-2006-5173
LOW · CVSS 2.1EPSS 0.4%EU EUVD
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.
Key facts
- CVSS score
- 2.1 (v2.0)
- Severity
- LOW
- CVSS vector
AV:L/AC:L/Au:N/C:N/I:N/A:P- EPSS score
- 0.4% (38th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2006-5158)
- Published
- October 17, 2006
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2006-5158 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- linux / linux kernel
References
- http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=47a5c6fa0e204a2b63309c648bb2fde36836c826
- http://secunia.com/advisories/23361(Broken Link)
- http://secunia.com/advisories/23384(Broken Link)
- http://secunia.com/advisories/23474(Broken Link)
- http://secunia.com/advisories/23593(Broken Link)
- http://secunia.com/advisories/25691(Broken Link)
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:002(Broken Link)
- http://www.novell.com/linux/security/advisories/2006_79_kernel.html(Broken Link)
- http://www.securityfocus.com/archive/1/471457(Third Party Advisory, VDB Entry)
- http://www.securityfocus.com/bid/21851(Third Party Advisory, VDB Entry)
- http://www.ubuntu.com/usn/usn-395-1(Third Party Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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