gnutls: incorrect handling of V1 intermediate certificates (GNUTLS-SA-2014-1)
Published Mar 6, 2014
5.8
MEDIUMCVSS 2.0
EPSS 3.42%
Description
lib/x509/verify.c in GnuTLS before 3.1.21 and 3.2.x before 3.2.11 treats version 1 X.509 certificates as intermediate CAs, which allows remote attackers to bypass intended restrictions by leveraging a X.509 V1 certificate from a trusted CA to issue new certificates.
Affected products
No data.
Configuration 1
- ≤ 3.1.20
- 3.1.0
- 3.1.1
- 3.1.2
- 3.1.3
- 3.1.4
- 3.1.5
- 3.1.6
- 3.1.7
- 3.1.8
- 3.1.9
- 3.1.10
- 3.1.11
- 3.1.12
- 3.1.13
- 3.1.14
- 3.1.15
- 3.1.16
- 3.1.17
- 3.1.18
- 3.1.19
Configuration 2
- ≤ 3.2.10
- 3.2.0
- 3.2.1
- 3.2.2
- 3.2.3
- 3.2.4
- 3.2.5
- 3.2.6
- 3.2.7
- 3.2.8
- 3.2.8.1
- 3.2.9
No data.
Red Hat Enterprise Linux 5
gnutls
Not affected
Red Hat Enterprise Linux 6
gnutls
Not affected
Red Hat Enterprise Linux 6
mingw32-gnutls
Not affected
Red Hat Enterprise Linux 7
gnutls
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | gnutls | Not affected | n/a |
| Red Hat Enterprise Linux 6 | gnutls | Not affected | n/a |
| Red Hat Enterprise Linux 6 | mingw32-gnutls | Not affected | n/a |
| Red Hat Enterprise Linux 7 | gnutls | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of gnutls as shipped with Red Hat Enterprise Linux 5 and 6.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.42% (0.03416) | 88.50th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.39% (0.03388) | 87.21th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.23% (0.00230) | 43.75th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.77% (0.00772) | 81.97th | v3 (v2023.03.01) |
| Mar 4, 2024 | 0.65% (0.00652) | 78.89th | v3 (v2023.03.01) |
| Oct 17, 2023 | 0.60% (0.00599) | 75.99th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.59% (0.00589) | 74.91th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (11)
- http://seclists.org/oss-sec/2014/q1/344 mailing-listx_refsource_MLIST
- http://seclists.org/oss-sec/2014/q1/345 mailing-listx_refsource_MLIST
- http://www.debian.org/security/2014/dsa-2866 vendor-advisoryx_refsource_DEBIAN
- http://www.gnutls.org/security.html x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/65559 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-2121-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2014-1959 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1065092 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2014-1959
- https://www.cve.org/CVERecord?id=CVE-2014-1959
- https://www.gitorious.org/gnutls/gnutls/commit/b1abfe3d182d68539900092eb42fc62cf1bb7e7c x_refsource_CONFIRMExploitPatch
| Link | Providers | Tags |
|---|---|---|
| http://seclists.org/oss-sec/2014/q1/344 | mailing-listx_refsource_MLIST | |
| http://seclists.org/oss-sec/2014/q1/345 | mailing-listx_refsource_MLIST | |
| http://www.debian.org/security/2014/dsa-2866 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.gnutls.org/security.html | x_refsource_CONFIRMVendor Advisory | |
| http://www.securityfocus.com/bid/65559 | vdb-entryx_refsource_BID | |
| http://www.ubuntu.com/usn/USN-2121-1 | vendor-advisoryx_refsource_UBUNTU | |
| https://access.redhat.com/security/cve/CVE-2014-1959 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1065092 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2014-1959 | ||
| https://www.cve.org/CVERecord?id=CVE-2014-1959 | ||
| https://www.gitorious.org/gnutls/gnutls/commit/b1abfe3d182d68539900092eb42fc62cf1bb7e7c | x_refsource_CONFIRMExploitPatch |
Change history (0)
No recorded changes yet.