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Fencer Intel
medium 4.3

CVE-2011-4128 json

Buffer overflow in the gnutls_session_get_data function in lib/gnutls_session.c in GnuTLS 2.12.x before 2.12.14 and 3.x before 3.0.7, when…

published 2011-12-08 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-4076

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

Buffer overflow in the gnutls_session_get_data function in lib/gnutls_session.c in GnuTLS 2.12.x before 2.12.14 and 3.x before 3.0.7, when used on a client that performs nonstandard session resumption, allows remote TLS servers to cause a denial of service (application crash) via a large SessionTicket.

Patch / fix

  • gnutls RHEL 6 2.8.5-4.el6_2.2
  • gnutls-guile RHEL 6 2.8.5-4.el6_2.2
  • gnutls-utils RHEL 6 2.8.5-4.el6_2.2
  • gnutls RHEL 5 1.4.1-7.el5_8.2
  • gnutls-utils RHEL 5 1.4.1-7.el5_8.2

red hat advisories RHSA-2012:0429RHSA-2012:0428

  • gnutls openSUSE Tumbleweed 3.4.15-1.1

opensuse advisories openSUSE-SU-2024:10105-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-4128 updated cvss 5.1

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

  • Red Hat Enterprise Linux 6 mingw32-gnutls
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux (v. 5 server) gnutls 1.4.1-7.el5_8.2, gnutls-utils 1.4.1-7.el5_8.2 Red Hat Enterprise Linux Desktop (v. 5 client) gnutls 1.4.1-7.el5_8.2, gnutls-utils 1.4.1-7.el5_8.2
    fixed: vendor fix RHSA-2012:0428
  • Red Hat Enterprise Linux Desktop (v. 6) gnutls 2.8.5-4.el6_2.2, gnutls-utils 2.8.5-4.el6_2.2 Red Hat Enterprise Linux Desktop Optional (v. 6) gnutls 2.8.5-4.el6_2.2, gnutls-guile 2.8.5-4.el6_2.2 Red Hat Enterprise Linux HPC Node (v. 6) gnutls 2.8.5-4.el6_2.2, gnutls-utils 2.8.5-4.el6_2.2 Red Hat Enterprise Linux HPC Node Optional (v. 6) gnutls 2.8.5-4.el6_2.2, gnutls-guile 2.8.5-4.el6_2.2 Red Hat Enterprise Linux Server (v. 6) gnutls 2.8.5-4.el6_2.2, gnutls-utils 2.8.5-4.el6_2.2 Red Hat Enterprise Linux Server Optional (v. 6) gnutls 2.8.5-4.el6_2.2, gnutls-guile 2.8.5-4.el6_2.2
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) gnutls 2.8.5-4.el6_2.2, gnutls-utils 2.8.5-4.el6_2.2 Red Hat Enterprise Linux Workstation Optional (v. 6) gnutls 2.8.5-4.el6_2.2, gnutls-guile 2.8.5-4.el6_2.2
    fixed: vendor fix RHSA-2012:0429
  • Red Hat RHEL Desktop Workstation (v. 5 client) gnutls 1.4.1-7.el5_8.2
    fixed: vendor fix RHSA-2012:0428
  • Red Hat Enterprise Linux 4 gnutls
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.30% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.