CVE-2011-1776

MEDIUM

Linux kernel <2.6.39 - DoS

Title source: llm

Description

The is_gpt_valid function in fs/partitions/efi.c in the Linux kernel before 2.6.39 does not check the size of an Extensible Firmware Interface (EFI) GUID Partition Table (GPT) entry, which allows physically proximate attackers to cause a denial of service (heap-based buffer overflow and OOPS) or obtain sensitive information from kernel heap memory by connecting a crafted GPT storage device, a different vulnerability than CVE-2011-1577.

References (8)

[Patch] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fa039d5f6b126fbd65eefa05db2f67e44df8f121

[Mailing List, Patch, Third Party Advisory] http://openwall.com/lists/oss-security/2011/05/10/4

[Third Party Advisory] http://rhn.redhat.com/errata/RHSA-2011-0927.html

[Third Party Advisory] http://securityreason.com/securityalert/8369

[Release Notes, Vendor Advisory] http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39

[Third Party Advisory] http://www.pre-cert.de/advisories/PRE-SA-2011-04.txt

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/47796

[Issue Tracking, Patch, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=703026

Scores

CVSS v3 6.1

EPSS 0.0006

EPSS Percentile 18.2%

Attack Vector PHYSICAL

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Classification

CWE

CWE-119

Status draft

Affected Products (6)

linux/linux_kernel < 2.6.39

redhat/enterprise_linux_desktop

redhat/enterprise_linux_server

redhat/enterprise_linux_server_aus

redhat/enterprise_linux_server_eus

redhat/enterprise_linux_workstation

Timeline

Published Sep 06, 2011

Tracked Since Feb 18, 2026