Vulnerability Details : 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.
Vulnerability category: OverflowDenial of service
Products affected by CVE-2011-1776
- cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:5.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:5.6:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Threat overview for CVE-2011-1776
Top countries where our scanners detected CVE-2011-1776
Top open port discovered on systems with this issue
49152
IPs affected by CVE-2011-1776 1,556
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2011-1776!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2011-1776
0.31%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 70 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-1776
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:N/A:C |
3.9
|
7.8
|
NIST | |
|
6.1
|
MEDIUM | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
0.9
|
5.2
|
NIST |
CWE ids for CVE-2011-1776
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-1776
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http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fa039d5f6b126fbd65eefa05db2f67e44df8f121
-
https://bugzilla.redhat.com/show_bug.cgi?id=703026
703026 – (CVE-2011-1776) CVE-2011-1776 kernel: validate size of EFI GUID partition entriesIssue Tracking;Patch;Third Party Advisory
-
http://rhn.redhat.com/errata/RHSA-2011-0927.html
RHSA-2011:0927 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
404: File not foundRelease Notes;Vendor Advisory
-
http://www.pre-cert.de/advisories/PRE-SA-2011-04.txt
Third Party Advisory
-
http://openwall.com/lists/oss-security/2011/05/10/4
oss-security - Re: CVE request: kernel: validate size of EFI GUID partition entriesMailing List;Patch;Third Party Advisory
-
http://securityreason.com/securityalert/8369
linux kernel 2.6.38.8 information disclosure, denial-of-service - CXSecurity.comThird Party Advisory
-
http://www.securityfocus.com/bid/47796
Linux Kernel EFI Partition Buffer Overflow VulnerabilityThird Party Advisory;VDB Entry
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