← Vulnerability feed

Vulnerability record · CVE-2014-1959 · published 7 March 2014

CVE-2014-1959: Gnutls permissions and access controls vulnerability

Gnu · Gnutls

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.

5.8 CVSS 2.0 Medium EPSS 3.4% · top 11.5% CWE-264 · Permissions and access controls
5.8CVSS 2.0 base score
3.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
14References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://seclists.org/oss-sec/2014/q1/344
http://seclists.org/oss-sec/2014/q1/345
http://www.debian.org/security/2014/dsa-2866
http://www.gnutls.org/security.html Vendor Advisory
http://www.securityfocus.com/bid/65559
http://www.ubuntu.com/usn/USN-2121-1
https://www.gitorious.org/gnutls/gnutls/commit/b1abfe3d182d68539900092eb42fc62cf1bb7e7c ExploitPatch
http://seclists.org/oss-sec/2014/q1/344
http://seclists.org/oss-sec/2014/q1/345
http://www.debian.org/security/2014/dsa-2866
http://www.gnutls.org/security.html Vendor Advisory
http://www.securityfocus.com/bid/65559
http://www.ubuntu.com/usn/USN-2121-1
https://www.gitorious.org/gnutls/gnutls/commit/b1abfe3d182d68539900092eb42fc62cf1bb7e7c ExploitPatch

Track CVE-2014-1959 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2008-1948Gnutls vulnerabilityThe _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 calculate …EPSS 12%9.8CVE-2026-42010Gnutls vulnerabilityA flaw was found in gnutls. Servers configured with RSA-PSK (Rivest–Shamir–Adleman – Pre-Shared Key) wrongfully matched usernames containing a NUL ch…EPSS 0.94%9.8CVE-2021-20231Gnutls use after free vulnerabilityA flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences.EPSS 3.8%9.8CVE-2021-20232Gnutls use after free vulnerabilityA flaw was found in gnutls. A use after free issue in client_send_params in lib/ext/pre_shared_key.c may lead to memory corruption and other potentia…EPSS 3.4%9.8CVE-2017-5336Opensuse leap memory buffer overflow vulnerabilityStack-based buffer overflow in the cdk_pk_get_keyid function in lib/opencdk/pubkey.c in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote att…EPSS 7.1%9.8CVE-2017-5334Opensuse leap double free vulnerabilityDouble 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 attackers to have…EPSS 33%9.8CVE-2017-5337Opensuse leap memory buffer overflow vulnerabilityMultiple heap-based buffer overflows in the read_attribute function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allow remote attackers to have uns…EPSS 6.2%9.8CVE-2009-3555TLS/SSL renegotiation flaw allows plaintext injection into sessionsThe TLS protocol and SSL 3.0 do not properly bind renegotiation handshakes to the existing connection, so a man-in-the-middle can inject data that th…EPSS 87%analysed

Source: NIST National Vulnerability Database (record CVE-2014-1959), CISA KEV, FIRST EPSS (scores of 2026-10-09). This page is refreshed as NVD updates the record.