CVE-2011-4128: 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…
Noroxi assessment
Priority: Monitor (action score 18/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 2.3% (FIRST EPSS); higher than 83.5% of all records.
- Fixed version: gnutls (openSUSE:Tumbleweed) 3.4.15-1.1; gnutls (Red Hat:enterprise_linux:5::client) 0:1.4.1-7.el5_8.2; gnutls-debuginfo (Red Hat:enterprise_linux:5::client) 0:1.4.1-7.el5_8.2.
Low priority for now. Upgrade to gnutls (openSUSE:Tumbleweed) 3.4.15-1.1; gnutls (Red Hat:enterprise_linux:5::client) 0:1.4.1-7.el5_8.2; gnutls-debuginfo (Red Hat:enterprise_linux:5::client) 0:1.4.1-7.el5_8.2 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
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.
- Published
- Dec 8, 2011
- Updated
- Jun 16, 2026
- EPSS
- 2.3% · 83th percentile
- CWE
- CWE-119
Report tools
Action score
18
Low priority for now.
- CVSS
- 17 / 40 · 4.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.3%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
Check your server's TLS configurationRun the SSL check
Is your version affected? Check itNoroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| gnu | gnutls | cpe:2.3:a:gnu:gnutls |
Check your server's TLS configuration
The GnuTLS version can't be seen from outside; the free SSL checker tests your certificate, enabled TLS versions and weak ciphers. Confirm the version on your server with the package manager.
Run the SSL checkAffected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- gnu gnutls2.12.0
- gnu gnutls2.12.1
- gnu gnutls2.12.10
- gnu gnutls2.12.11
- gnu gnutls2.12.12
- gnu gnutls2.12.13
- gnu gnutls2.12.2
- gnu gnutls2.12.3
+12 more rows
- gnu gnutls2.12.4
- gnu gnutls2.12.5
- gnu gnutls2.12.6
- gnu gnutls2.12.6.1
- gnu gnutls2.12.7
- gnu gnutls2.12.8
- gnu gnutls2.12.9
- gnu gnutls3.0.0
- gnu gnutls3.0.1
- gnu gnutls3.0.2
- gnu gnutls3.0.3
- gnu gnutls3.0.4
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| openSUSE:Tumbleweed | gnutls | before 3.4.15-1.1 | 3.4.15-1.1 |
| Red Hat:enterprise_linux:5::client | gnutls | before 0:1.4.1-7.el5_8.2 | 0:1.4.1-7.el5_8.2 |
| Red Hat:enterprise_linux:5::client | gnutls-debuginfo | before 0:1.4.1-7.el5_8.2 | 0:1.4.1-7.el5_8.2 |
| Red Hat:enterprise_linux:5::client | gnutls-utils | before 0:1.4.1-7.el5_8.2 | 0:1.4.1-7.el5_8.2 |
| Red Hat:enterprise_linux:5::client_workstation | gnutls-devel | before 0:1.4.1-7.el5_8.2 | 0:1.4.1-7.el5_8.2 |
| Red Hat:enterprise_linux:6::client | gnutls | before 0:2.8.5-4.el6_2.2 | 0:2.8.5-4.el6_2.2 |
| Red Hat:enterprise_linux:6::client | gnutls-debuginfo | before 0:2.8.5-4.el6_2.2 | 0:2.8.5-4.el6_2.2 |
| Red Hat:enterprise_linux:6::client | gnutls-devel | before 0:2.8.5-4.el6_2.2 | 0:2.8.5-4.el6_2.2 |
| Red Hat:enterprise_linux:6::client | gnutls-guile | before 0:2.8.5-4.el6_2.2 | 0:2.8.5-4.el6_2.2 |
| Red Hat:enterprise_linux:6::client | gnutls-utils | before 0:2.8.5-4.el6_2.2 | 0:2.8.5-4.el6_2.2 |
Same product
gnu: all recordsOther highest-scoring records for the same primary product.
- CVE-2017-5334Double free vulnerability in the gnutls_x509_ext_import_proxy function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote…49Plan
- CVE-2019-3829A vulnerability was found in gnutls versions from 3.5.8 before 3.6.7.48Plan
- CVE-2008-1948The _gnutls_server_name_recv_params function in lib/ext_server_name.c in libgnutls in gnutls-serv in GnuTLS before 2.2.4 does not properly…44Plan
Published before and after this one in the same product
- ← EarlierCVE-2010-0731Mar 26, 2010 · The gnutls_x509_crt_get_serial function in the GnuTLS library before 1.2.1, when running on big-endian, 64-bit platforms, calls the…31Monitor
- ← EarlierCVE-2006-7239May 24, 2010 · The _gnutls_x509_oid2mac_algorithm function in lib/gnutls_algorithms.c in GnuTLS before 1.4.2 allows remote attackers to cause a denial of…20Monitor
- Later →CVE-2012-0390Jan 5, 2012 · The DTLS implementation in GnuTLS 3.0.10 and earlier executes certain error-handling code only if there is a specific relationship between…17Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| opensuse:gnutls | 3.4.15-1.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| red hat:gnutls | 0:1.4.1-7.el5_8.2 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:gnutls-debuginfo | 0:1.4.1-7.el5_8.2 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:gnutls-devel | 0:1.4.1-7.el5_8.2 · Red Hat:enterprise_linux:5::client_workstation | Package registry (OSV) |
| red hat:gnutls-guile | 0:2.8.5-4.el6_2.2 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:gnutls-utils | 0:1.4.1-7.el5_8.2 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.
Technical details
Attack conditions
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- P · the service can be disrupted
- Attack complexity
- M
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- P
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
ATT&CK techniques
—
Change log (1)
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (14 more)Show less
- git.savannah.gnu.org/gitweb/?p=gnutls.git%3Ba=commitdiff%3Bh=190cef6eed37d0e73a73c1e205eb31d45ab60a3c
- git.savannah.gnu.org/gitweb/?p=gnutls.git%3Ba=commitdiff%3Bh=e82ef4545e9e98cbcb032f55d7c750b81e3a0450
- 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
- secunia.com/advisories/48596
- secunia.com/advisories/48712
- www.gnu.org/software/gnutls/security.html
- www.mandriva.com/security/advisories?name=MDVSA-2012:045
- www.ubuntu.com/usn/USN-1418-1
- bugzilla.redhat.com/show_bug.cgi?id=752308
Vendor advisories and official records. Exploit/PoC links are deliberately left out.