CVE-2011-1776

MEDIUM

Linux Kernel < 2.6.39 - Heap-Based Buffer Overflow in EFI GPT Partition Table Handling

Title source: llm
STIX 2.1

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)

Core 8
Core References
Third Party Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2011-0927.html
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://openwall.com/lists/oss-security/2011/05/10/4
Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/8369
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/47796
Release Notes, Vendor Advisory x_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
Third Party Advisory x_refsource_misc
http://www.pre-cert.de/advisories/PRE-SA-2011-04.txt
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=703026

Scores

CVSS v3 6.1
EPSS 0.0054
EPSS Percentile 41.8%
Attack Vector PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Details

CWE
CWE-119
Status published
Products (6)
linux/linux_kernel < 2.6.39
redhat/enterprise_linux_desktop 5.0
redhat/enterprise_linux_server 5.0
redhat/enterprise_linux_server_aus 5.6
redhat/enterprise_linux_server_eus 5.6
redhat/enterprise_linux_workstation 5.0
Published Sep 06, 2011
Tracked Since Feb 18, 2026