PT-2010-1341 · Linux+1 · Linux Kernel+1

Vincent Danen · Published 2010-03-17 · Updated 2017-09-19 · CVE-2009-4271

Positive Technologies (AI Summary)

CVSS v2.0

4.7

Medium

Base vector

AV:L/AC:M/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions 2.6.9 through 2.6.17

Description The issue allows local users to cause a denial of service, resulting in a system panic. This can be achieved by a 32-bit application calling mprotect on its Virtual Dynamic Shared Object (VDSO) page and then triggering a segmentation fault.

Recommendations For Linux kernel versions 2.6.9 through 2.6.17, consider restricting access to the mprotect system call for 32-bit applications to minimize the risk of exploitation. As a temporary workaround, avoid using 32-bit applications that may trigger a segmentation fault after calling mprotect on the VDSO page until a patch is available.

Fix

Related Identifiers

CVE-2009-4271

RHSA-2010:0146

RHSA-2010_0146

Affected Products

Linux Kernel

Red Hat

References · 12

• https://nvd.nist.gov/vuln/detail/CVE-2009-4271 · Security Note
• https://rhn.redhat.com/errata/RHSA-2010-0146.html · Vendor Advisory
• https://access.redhat.com/security/cve/CVE-2010-0307 · Note
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10248 · Note
• https://access.redhat.com/security/cve/CVE-2010-0003 · Note
• http://openwall.com/lists/oss-security/2010/03/17/1 · Note
• https://access.redhat.com/security/cve/CVE-2010-0008 · Note
• http://securityfocus.com/bid/38027 · Note
• https://access.redhat.com/security/cve/CVE-2010-0007 · Note
• https://access.redhat.com/security/cve/CVE-2009-4271 · Note
• https://access.redhat.com/errata/RHSA-2010:0146 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=548876 · Note