Total
75 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2026-42010 | 2 Gnu, Redhat | 4 Gnutls, Enterprise Linux, Hardened Images and 1 more | 2026-06-10 | N/A | 7.1 HIGH |
| A flaw was found in gnutls. Servers configured with RSA-PSK (Rivest–Shamir–Adleman – Pre-Shared Key) wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass. This vulnerability allows an attacker to gain unauthorized access by circumventing the authentication process. | |||||
| CVE-2026-42009 | 2 Gnu, Redhat | 14 Gnutls, Enterprise Linux, Enterprise Linux For Els and 11 more | 2026-06-08 | N/A | 7.5 HIGH |
| A flaw was found in gnutls. A remote attacker could exploit an issue in the Datagram Transport Layer Security (DTLS) packet reordering logic. The comparator function, responsible for ordering DTLS packets by sequence numbers, did not correctly handle packets with duplicate sequence numbers. This could lead to unstable packet ordering or undefined behavior, resulting in a denial of service. | |||||
| CVE-2026-3832 | 2 Gnu, Redhat | 4 Gnutls, Enterprise Linux, Hardened Images and 1 more | 2026-06-02 | N/A | 3.7 LOW |
| A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted Online Certificate Status Protocol (OCSP) response during a TLS handshake. Due to a logic error in how gnutls processes multi-record OCSP responses, a client with OCSP verification enabled may incorrectly accept a revoked server certificate, potentially leading to a compromise of trust. | |||||
| CVE-2026-3833 | 2 Gnu, Redhat | 4 Gnutls, Enterprise Linux, Hardened Images and 1 more | 2026-06-02 | N/A | 6.5 MEDIUM |
| A flaw was found in gnutls. This vulnerability occurs because gnutls performs case-sensitive comparisons of `nameConstraints` labels, specifically for `dNSName` (DNS) or `rfc822Name` (email) constraints within `excludedSubtrees` or `permittedSubtrees`. A remote attacker can exploit this by crafting a leaf certificate with casing differences in the Subject Alternative Name (SAN), leading to a policy bypass where a certificate that should be rejected is instead accepted. This could result in unauthorized access or information disclosure. | |||||
| CVE-2026-33845 | 2 Gnu, Redhat | 3 Gnutls, Enterprise Linux, Openshift Container Platform | 2026-06-02 | N/A | 7.5 HIGH |
| A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of service. | |||||
| CVE-2009-3555 | 8 Apache, Canonical, Debian and 5 more | 8 Http Server, Ubuntu Linux, Debian Linux and 5 more | 2026-05-27 | 5.8 MEDIUM | 9.8 CRITICAL |
| The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft Internet Information Services (IIS) 7.0, mod_ssl in the Apache HTTP Server 2.2.14 and earlier, OpenSSL before 0.9.8l, GnuTLS 2.8.5 and earlier, Mozilla Network Security Services (NSS) 3.12.4 and earlier, multiple Cisco products, and other products, does not properly associate renegotiation handshakes with an existing connection, which allows man-in-the-middle attackers to insert data into HTTPS sessions, and possibly other types of sessions protected by TLS or SSL, by sending an unauthenticated request that is processed retroactively by a server in a post-renegotiation context, related to a "plaintext injection" attack, aka the "Project Mogul" issue. | |||||
| CVE-2017-5337 | 2 Gnu, Opensuse | 2 Gnutls, Leap | 2026-05-13 | 7.5 HIGH | 9.8 CRITICAL |
| Multiple 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 unspecified impact via a crafted OpenPGP certificate. | |||||
| CVE-2017-5336 | 2 Gnu, Opensuse | 2 Gnutls, Leap | 2026-05-13 | 7.5 HIGH | 9.8 CRITICAL |
| Stack-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 attackers to have unspecified impact via a crafted OpenPGP certificate. | |||||
| CVE-2017-7507 | 1 Gnu | 1 Gnutls | 2026-05-13 | 5.0 MEDIUM | 7.5 HIGH |
| GnuTLS version 3.5.12 and earlier is vulnerable to a NULL pointer dereference while decoding a status response TLS extension with valid contents. This could lead to a crash of the GnuTLS server application. | |||||
| CVE-2017-5335 | 2 Gnu, Opensuse | 2 Gnutls, Leap | 2026-05-13 | 5.0 MEDIUM | 7.5 HIGH |
| The stream reading functions in lib/opencdk/read-packet.c in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allow remote attackers to cause a denial of service (out-of-memory error and crash) via a crafted OpenPGP certificate. | |||||
| CVE-2017-7869 | 1 Gnu | 1 Gnutls | 2026-05-13 | 5.0 MEDIUM | 7.5 HIGH |
| GnuTLS before 2017-02-20 has an out-of-bounds write caused by an integer overflow and heap-based buffer overflow related to the cdk_pkt_read function in opencdk/read-packet.c. This issue (which is a subset of the vendor's GNUTLS-SA-2017-3 report) is fixed in 3.5.10. | |||||
| CVE-2016-4456 | 1 Gnu | 1 Gnutls | 2026-05-13 | 5.0 MEDIUM | 7.5 HIGH |
| The "GNUTLS_KEYLOGFILE" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem. | |||||
| CVE-2017-5334 | 2 Gnu, Opensuse | 2 Gnutls, Leap | 2026-05-13 | 7.5 HIGH | 9.8 CRITICAL |
| Double 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 unspecified impact via crafted policy language information in an X.509 certificate with a Proxy Certificate Information extension. | |||||
| CVE-2025-32989 | 2 Gnu, Redhat | 3 Gnutls, Enterprise Linux, Openshift Container Platform | 2026-05-12 | N/A | 5.3 MEDIUM |
| A heap-buffer-overread vulnerability was found in GnuTLS in how it handles the Certificate Transparency (CT) Signed Certificate Timestamp (SCT) extension during X.509 certificate parsing. This flaw allows a malicious user to create a certificate containing a malformed SCT extension (OID 1.3.6.1.4.1.11129.2.4.2) that contains sensitive data. This issue leads to the exposure of confidential information when GnuTLS verifies certificates from certain websites when the certificate (SCT) is not checked correctly. | |||||
| CVE-2025-32988 | 2 Gnu, Redhat | 3 Gnutls, Enterprise Linux, Openshift Container Platform | 2026-05-12 | N/A | 6.5 MEDIUM |
| A flaw was found in GnuTLS. A double-free vulnerability exists in GnuTLS due to incorrect ownership handling in the export logic of Subject Alternative Name (SAN) entries containing an otherName. If the type-id OID is invalid or malformed, GnuTLS will call asn1_delete_structure() on an ASN.1 node it does not own, leading to a double-free condition when the parent function or caller later attempts to free the same structure. This vulnerability can be triggered using only public GnuTLS APIs and may result in denial of service or memory corruption, depending on allocator behavior. | |||||
| CVE-2009-5138 | 1 Gnu | 1 Gnutls | 2026-05-06 | 5.8 MEDIUM | N/A |
| GnuTLS before 2.7.6, when the GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT flag is not enabled, 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, a different vulnerability than CVE-2014-1959. | |||||
| CVE-2014-8155 | 1 Gnu | 1 Gnutls | 2026-05-06 | 4.3 MEDIUM | N/A |
| GnuTLS before 2.9.10 does not verify the activation and expiration dates of CA certificates, which allows man-in-the-middle attackers to spoof servers via a certificate issued by a CA certificate that is (1) not yet valid or (2) no longer valid. | |||||
| CVE-2014-8564 | 4 Canonical, Gnu, Opensuse and 1 more | 7 Ubuntu Linux, Gnutls, Opensuse and 4 more | 2026-05-06 | 5.0 MEDIUM | N/A |
| The _gnutls_ecc_ansi_x963_export function in gnutls_ecc.c in GnuTLS 3.x before 3.1.28, 3.2.x before 3.2.20, and 3.3.x before 3.3.10 allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted (1) Elliptic Curve Cryptography (ECC) certificate or (2) certificate signing requests (CSR), related to generating key IDs. | |||||
| CVE-2014-3468 | 5 Debian, F5, Gnu and 2 more | 16 Debian Linux, Arx, Arx Firmware and 13 more | 2026-05-06 | 7.5 HIGH | N/A |
| The asn1_get_bit_der function in GNU Libtasn1 before 3.6 does not properly report an error when a negative bit length is identified, which allows context-dependent attackers to cause out-of-bounds access via crafted ASN.1 data. | |||||
| CVE-2015-6251 | 2 Debian, Gnu | 2 Debian Linux, Gnutls | 2026-05-06 | 5.0 MEDIUM | N/A |
| Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service via a long DistinguishedName (DN) entry in a certificate. | |||||