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CVE-2006-5173

UnknownEPSS 0.41%

Last modified

CVE-2006-5173 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
0.41%

32.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
LinuxLinux Kernel>= 2.4.0, <= 2.6.19
CanonicalUbuntu Linux5.10
CanonicalUbuntu Linux6.06
CanonicalUbuntu Linux6.10

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2006-5173?
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.
How severe is CVE-2006-5173?
Severity scoring for CVE-2006-5173 is pending analysis. The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.
How do I fix CVE-2006-5173?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST