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CVE-2011-1577

18
FAUCET Score

CVE-2011-1577 describes a heap-based buffer overflow vulnerability in the Linux kernel's EFI GUID partition-table header parsing function (is_gpt_valid). This flaw affects Linux kernel versions 2.6.38 and earlier. An attacker with physical access could exploit this by using crafted removable media, leading to a denial of service (system OOPS) or potentially other unspecified impacts. The vulnerability has a CVSS score of 4.9, indicating a low attack complexity but requiring local access. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.38CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
2.6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.1:*:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.1:rc1:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.1:rc2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

AV:L/AC:L/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 64th percentile among its peer group of 3,050 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-238.12.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-131.21.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:2.6.33.9-rt31.75.el6rt
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise MRG 1Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2011-1577Low

kernel: corrupted GUID partition tables can cause kernel oops

Apr 13, 2011

References

downloads.avaya.com / css/P8/documents/100145416
lists.fedoraproject.org / pipermail/package-announce/2011-June/061236.html
openwall.com / lists/oss-security/2011/04/12/17
Patch
openwall.com / lists/oss-security/2011/04/13/1
rhn.redhat.com / errata/RHSA-2011-0833.html
bugzilla.redhat.com / show_bug.cgi
securityreason.com / securityalert/8238
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/66773
securityfocus.com / archive/1/517477/100/0/threaded
securityfocus.com / bid/47343
spinics.net / lists/mm-commits/msg83274.html
Patch