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CVE-2011-1776

The is_gpt_valid function in fs/partitions/efi.c in the Linux kernel before 2.6.39 does not check...

6.1 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Physical
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
High

Exploit likelihood

0.54%Down 0.6 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 6.1

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.

Record
CVE-2011-1776
CVSS 3.1
6.1 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS 2.0
5.6 MediumAV:L/AC:L/Au:N/C:P/I:N/A:C
Weakness
CWE-119
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2011-1776
Updated
2026-11-02
EUVDEUVD-2011-1774 No score

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.

Record
EUVD-2011-1774
Updated
2026-11-03
GitHub AdvisoriesGHSA-568c-8p2x-qrp5 6.1

The is_gpt_valid function in fs/partitions/efi.c in the Linux kernel before 2.6.39 does not check...

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.

Record
GHSA-568c-8p2x-qrp5
CVSS 3.1
6.1 MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Weakness
CWE-119
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
linux-2.6
Debian:6.0
 before 2.6.32-34squeeze1, plus listed versions
2.6.32-302.6.32-30+m68k.52.6.32-312.6.32-31~bpo50+12.6.32-322.6.32-332.6.32-34
2.6.32-34squeeze1
linux-2.6
Debian:5.0
 before 2.6.26-26lenny3, plus listed versions
2.6.26-132.6.26-13lenny22.6.26-13lenny2~bpo40+12.6.26-142.6.26-15
Show 34 moreShow less
2.6.26-15lenny12.6.26-15lenny22.6.26-15lenny32.6.26-15~bpo40+12.6.26-15~bpo40+22.6.26-162.6.26-172.6.26-17lenny12.6.26-17lenny22.6.26-17lenny2~bpo40+12.6.26-17~bpo40+12.6.26-182.6.26-192.6.26-19lenny12.6.26-19lenny22.6.26-19~bpo40+12.6.26-202.6.26-20~bpo40+12.6.26-212.6.26-21lenny12.6.26-21lenny22.6.26-21lenny32.6.26-21lenny42.6.26-21~bpo40+12.6.26-222.6.26-22lenny12.6.26-232.6.26-242.6.26-24lenny12.6.26-252.6.26-25lenny12.6.26-262.6.26-26lenny12.6.26-26lenny2
2.6.26-26lenny3
kernel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-PAE
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-PAE-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-PAE-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-debug
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-debug-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-debug-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
Show 43 moreShow less
Affected packages
PackageAffectedFixed
kernel-debuginfo-common
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-doc
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-kdump
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-kdump-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-kdump-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-xen
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-xen-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel-xen-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-238.19.1.el5
0:2.6.18-238.19.1.el5
kernel
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-bootwrapper
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-debug
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-debug-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-debug-devel
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-debuginfo-common-i686
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-debuginfo-common-ppc64
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-debuginfo-common-s390x
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-debuginfo-common-x86_64
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-devel
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-doc
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-firmware
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-headers
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-kdump
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-kdump-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-kdump-devel
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
perf
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
perf-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.12.1.el6
0:2.6.32-131.12.1.el6
kernel-rt
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt
kernel-rt-debug
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt
kernel-rt-debug-debuginfo
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt
kernel-rt-debug-devel
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt
kernel-rt-debuginfo
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt
kernel-rt-debuginfo-common-x86_64
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt
kernel-rt-devel
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt
kernel-rt-doc
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt
kernel-rt-firmware
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt
kernel-rt-trace
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt
kernel-rt-trace-debuginfo
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt
kernel-rt-trace-devel
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt
kernel-rt-vanilla
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt
kernel-rt-vanilla-debuginfo
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt
kernel-rt-vanilla-devel
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.75.el6rt
0:2.6.33.9-rt31.75.el6rt

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-1776 is a medium vulnerability (CVSS 6.1) in Linux Kernel, published May 23, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.54%, the 45th percentile. Fixed in linux-2.6 2.6.32-34squeeze1.

References

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