CVE-2011-1776
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.
Key facts
- CVSS score
- 6.1 (v3.1)
- Severity
- MEDIUM
- CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H- Weakness (CWE)
- CWE-119
- EPSS score
- 0.5% (46th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-1774)
- Published
- September 6, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-1774 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- linux / linux kernel
- redhat / enterprise linux desktop
- redhat / enterprise linux server
- redhat / enterprise linux server aus
- redhat / enterprise linux server eus
- redhat / enterprise linux workstation
Certified products that may be affected
1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.
- Red Hat Enterprise Linux 5 OpenSSH-Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 1384 - historical
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fa039d5f6b126fbd65eefa05db2f67e44df8f121
- http://openwall.com/lists/oss-security/2011/05/10/4(Mailing List, Patch, Third Party Advisory)
- http://rhn.redhat.com/errata/RHSA-2011-0927.html(Third Party Advisory)
- http://securityreason.com/securityalert/8369(Third Party Advisory)
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39(Release Notes, Vendor Advisory)
- http://www.pre-cert.de/advisories/PRE-SA-2011-04.txt(Third Party Advisory)
- http://www.securityfocus.com/bid/47796(Third Party Advisory, VDB Entry)
- https://bugzilla.redhat.com/show_bug.cgi?id=703026(Issue Tracking, Patch, Third Party Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain