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.
Published 2006-10-17 22:07:00
Updated 2020-08-19 19:42:05
Source MITRE
View at NVD,
Vulnerability category: Denial of service

Threat overview for CVE-2006-5173

Top countries where our scanners detected CVE-2006-5173
Top open port discovered on systems with this issue 80
IPs affected by CVE-2006-5173 925
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2006-5173!
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Exploit prediction scoring system (EPSS) score for CVE-2006-5173

Probability of exploitation activity in the next 30 days EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2006-5173

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen

Vendor statements for CVE-2006-5173

  • Red Hat 2006-11-03
    Not Vulnerable. This flaw only affects kernel versions 2.6.14 to 2.6.18. Red Hat Enterprise Linux 2.1, 3, and 4 does not ship with a vulnerable kernel version.

References for CVE-2006-5173

Products affected by CVE-2006-5173

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