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CVE-2011-4128

18
FAUCET Score

CVE-2011-4128 describes a buffer overflow vulnerability in the gnutls_session_get_data function within GnuTLS versions 2.12.x before 2.12.14 and 3.x before 3.0.7. This flaw allows a malicious TLS server to trigger a denial of service (application crash) on a client performing nonstandard session resumption by sending an oversized SessionTicket. The vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and a potential impact of partial availability, with no confidentiality or integrity impact. There is no evidence of active exploitation, nor are there any public exploit modules available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage are minimal, suggesting low overall attention.

Impacted Technologies

VendorProductVersion(s)CPE
2.12.0CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:2.12.0:*:*:*:*:*:*:*
2.12.1CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:2.12.1:*:*:*:*:*:*:*
2.12.2CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:2.12.2:*:*:*:*:*:*:*
2.12.3CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:2.12.3:*:*:*:*:*:*:*
2.12.4CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:2.12.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.30%
Probability of exploitation in next 30 days
EPSS Percentile
81.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0230 is in the 70th percentile among its peer group of 19,953 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

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 (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: gnutls-0:1.4.1-7.el5_8.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: gnutls-0:2.8.5-4.el6_2.2
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: mingw32-gnutls

Vendor Advisories (1)

redhatCVE-2011-4128Low

gnutls: buffer overflow in gnutls_session_get_data() (GNUTLS-SA-2011-2)

Nov 7, 2011

References

article.gmane.org / gmane.comp.encryption.gpg.gnutls.devel/5596
git.savannah.gnu.org / gitweb
git.savannah.gnu.org / gitweb
lists.fedoraproject.org / pipermail/package-announce/2012-April/077071.html
openwall.com / lists/oss-security/2011/11/09/2
openwall.com / lists/oss-security/2011/11/09/4
rhn.redhat.com / errata/RHSA-2012-0429.html
rhn.redhat.com / errata/RHSA-2012-0488.html
rhn.redhat.com / errata/RHSA-2012-0531.html
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/48596
secunia.com / advisories/48712
gnu.org / software/gnutls/security.html
mandriva.com / security/advisories
ubuntu.com / usn/USN-1418-1