CVE-2009-4271

Severity: medium (CVSS 4.7 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-03-19 · updated 2026-06-16

Description

The Linux kernel 2.6.9 through 2.6.17 on the x86_64 and amd64 platforms allows local users to cause a denial of service (panic) via a 32-bit application that calls mprotect on its Virtual Dynamic Shared Object (VDSO) page and then triggers a segmentation fault.

Affected products

Linux kernel: 2.6.9, 2.6.9-rc1, 2.6.9-rc2, 2.6.9-rc3, 2.6.9-rc4, 2.6.10 (+117)

References

http://www.openwall.com/lists/oss-security/2010/03/17/1
https://bugzilla.redhat.com/show_bug.cgi?id=548876
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10248
https://rhn.redhat.com/errata/RHSA-2010-0146.html
http://www.openwall.com/lists/oss-security/2010/03/17/1
https://bugzilla.redhat.com/show_bug.cgi?id=548876
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10248
https://rhn.redhat.com/errata/RHSA-2010-0146.html

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