Medium severity · published Sep 6, 2011
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)…
6.1
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 2.6.39 · source: NVD
EL
Enterprise Linux Desktop · Redhat
5.0 · source: NVD
EL
Enterprise Linux Server · Redhat
5.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
5.6 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
5.6 · source: NVD
EL
Enterprise Linux Workstation · Redhat
5.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2011-1776
CVE.org
https://www.cve.org/CVERecord?id=CVE-2011-1776
git.kernel.org
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fa039d5f6b126fbd65eefa05db2f67e44df8f121
Mailing List
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
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
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