PT-2017-1979 · Linux · Linux Kernel

Brandon Philips + 1 · Published 2017-04-24 · Updated 2017-04-27 · CVE-2007-6761

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.6.24

Description The issue is caused by a buffer overflow in the videobuf-vmalloc.c driver, specifically in the videobuf mapping data structures. This can be exploited by a local attacker to cause incorrect numerical values and a videobuf leak. The exploitation is possible due to the lack of initialization of videobuf mapping data structures.

Recommendations For Linux kernel versions prior to 2.6.24, update to version 2.6.24 or later to resolve the issue. As a temporary workaround, consider restricting access to the videobuf-vmalloc.c driver to minimize the risk of exploitation.

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2017-01143

CVE-2007-6761

Affected Products

Linux Kernel

References · 11

• https://github.com/torvalds/linux/commit/0b29669c065f60501e7289e1950fa2a618962358 · Patch
• https://ubuntu.com/security/CVE-2007-6761 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2007-6761 · Vendor Advisory
• https://bdu.fstec.ru/vul/2017-01143 · Security Note
• https://cve.org/CVERecord?id=CVE-2007-6761 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2007-6761 · Security Note
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0b29669c065f60501e7289e1950fa2a618962358 · Patch
• http://securityfocus.com/bid/98001 · Note
• http://linuxgrill.com/anonymous/kernel/v2.6/ChangeLog-2.6.24 · Note
• https://xn--80ahaefyxhn.xn--j1afgaq.xn--p1ai/bin/view/%D0%9E%D0%A1%D0%BD%D0%BE%D0%B2%D0%B0/%D0%9E%D0%B1%D0%BD%D0%BE%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F/2.7 · Note
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=827340 · Note