PT-2009-5204 · Linux · Linux Kernel

Michael Buesch · Published 2009-08-18 · Updated 2017-08-17 · CVE-2009-2846

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.6.31-rc6

Description The issue allows local users to access restricted memory due to an out-of-bounds read in the readb function. This occurs because the eisa eeprom read function in the parisc isa-eeprom component does not properly check the ppos argument, assuming it is always positive. A negative ppos argument can bypass this check.

Recommendations For Linux kernel versions prior to 2.6.31-rc6, update to version 2.6.31-rc6 or later to resolve the issue.

Exploit

Fix

Weakness Enumeration

CWE-264

Related Identifiers

CVE-2009-2846

DSA-1872-1

DSA-1928-1

Affected Products

Linux Kernel

References · 9

• 🔥 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=6b4dbcd86a9d464057fcc7abe4d0574093071fcc · Exploit
• http://openwall.com/lists/oss-security/2009/08/10/1 · Patch
• http://ubuntu.com/usn/USN-852-1 · Vendor Advisory
• http://openwall.com/lists/oss-security/2009/08/18/6 · Patch
• http://mandriva.com/security/advisories?name=MDVSA-2010:198 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2009-2846 · Security Note
• http://secunia.com/advisories/37105 · Note
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=6b4dbcd86a9d464057fcc7abe4d0574093071fcc · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/52906 · Note