CVE-2023-5981

CVE-2023-5981 affects GnuTLS via timing side-channel in RSA-PSK ClientKeyExchange, potentially leaking data. Connected docs show affected gnutls versions before 3.7.11-1 (CBLMARINER: CVE-2023-5981 affecting package gnutls for versions less than 3.7.11-1) and note CVE-2024-0553 as an incomplete re...

CVE-2012-1569

CVE-2012-1569 involves the libtasn1 ASN.1 DER library. The issue is a flaw in asn1_get_length_der handling large length values, present in libtasn1 before 2.12 and used by GnuTLS before 3.0.16. A crafted DER structure can trigger heap memory corruption, leading to a remote denial of service (appl...

CVE-2009-2409

CVE-2009-2409 involves MD2 use in X.509 certificate signatures across NSS, GnuTLS, and OpenSSL. Root cause: MD2 hash weaknesses allow forging/collision-based certificate spoofing; public updates disable/avoid MD2 and patch implementations. Affected components include NSS library (Firefox usage), ...

CVE-2013-2116

CVE-2013-2116 affects GnuTLS 2.12.23 where the function gnutls_ciphertext2compressed in lib/gnutls_cipher.c can trigger a buffer over-read and crash under a crafted padding length, causing a denial of service. NOTE: this entry is linked to previous CVE-2013-0169 fixes; ALT Linux advisories indica...

CVE-2018-16868

CVE-2018-16868 concerns a Bleichenbacher-type side-channel padding oracle in GnuTLS during PKCS#1 v1.5 RSA verification. The provided documents indicate this affects GnuTLS across Linux distributions (e.g., Red Hat). The attack requires local access on the same physical core as the victim process...

CVE-2018-10844

CVE-2018-10844 affects GnuTLS HMAC-SHA-256 and is described in multiple sources (IBM advisories and third‑party feeds) as a Lucky Thirteen–style timing attack enabling distinguishing and plaintext‑recovery via crafted packets. Affected products include IBM Power Hardware Management Console and IB...

CVE-2018-10845

CVE-2018-10845 affects GnuTLS HMAC-SHA-384 and enables a Lucky Thirteen–style timing side-channel leading to potential plaintext recovery. The connected IBM advisories confirm remote exploitation via crafted packets to obtain information, with MEDIUM base scores and impact on confidentiality. Rem...

CVE-2018-10846

CVE-2018-10846 describes a cache-based side-channel in GnuTLS that can enable plaintext recovery in cross-VM settings. An attacker could combine a Just in Time Prime+probe attack with a Lucky-13 attack by sending crafted packets to exploit this vulnerability. Remediation in publicly documented ad...

CVE-2014-0092

GnuTLS CVE-2014-0092 affects lib/x509/verify.c: vulnerable in GnuTLS releases before 3.1.22 and before 3.2.12 (3.2.x). The flaw arises from improper handling of unspecified errors during X.509 certificate verification from SSL servers, enabling MITM via a crafted certificate. Public references co...

CVE-2013-4466

GnuTLS has a DANE (libdane) heap/buffer overflow in dane_query_tlsa that can cause memory corruption on receipt of a DNS response with more than four DANE entries. Affected branches: GnuTLS 3.1.x prior to 3.1.15 and 3.2.x prior to 3.2.5. Publicly described impact is denial of service via memory i...

CVE-2014-3467

GNUTLS/library libtasn1 vulnerability CVE-2014-3467 is due to multiple issues in the DER decoder of GNU Libtasn1 up to version 3.5.x (pre-3.6), exploited by crafted ASN.1 data to cause a denial of service via out-of-bounds read. The issue is confirmed in multiple advisories (F5 SOL15423, ALAS-201...

CVE-2006-4790

CVE-2018-16253 (and related CVEs) describe a variant of CVE-2006-4790 where PKCS#1 v1.5 signature verification fails to reject excess data in digestAlgorithm.parameters, enabling remote forgery of signatures when small public exponents are used. Affected: axTLS (sig_verify in x509.c) up to versio...

CVE-2015-6251

GnuTLS vulnerability (CVE‑2015‑6251) : A double‑free in the certificate DN decoding path, specifically in _gnutls_x509_dn_to_string(), can be triggered by very long DistinguishedName values in X.509 certificates. Affected versions are before 3.3.17 and 3.4.x before 3.4.4. Impact : remote denial o...

CVE-2008-4989

Summary: CVE-2008-4989 affects the GnuTLS library. The vulnerability lies in _gnutls_x509_verify_certificate in libgnutls/lib/x509/verify.c, where the library can trust a chain whose last certificate is an arbitrary self-signed trusted cert. This allows a man-in-the-middle to spoof a certificate ...

CVE-2015-0282

GnuTLS before 3.1.0 does not verify that the RSA PKCS#1 signature algorithm matches the signature algorithm in the certificate, enabling remote downgrade attacks via unspecified vectors. Impact is downgrade/traffic manipulation risk with affected deployments. The CVE entry explicitly targets GnuTLS...

CVE-2014-3469

CVE-2014-3469 affects GNU libtasn1 before 3.6, where the functions asn1_read_value_type and asn1_read_value may dereference a NULL ivalue. In this context, crafted ASN.1 data can trigger a NULL pointer dereference in the library, leading to a denial of service (crash). The vulnerability is noted ...

CVE-2014-8564

CVE-2014-8564 : GnuTLS 3.x before 3.1.28, 3.2.x before 3.2.20, and 3.3.x before 3.3.10 contains a flaw in the _gnutls_ecc_ansi_x963_export function of gnutls_ecc.c that allows remote attackers to cause a denial of service via a crafted ECC certificate or certificate signing request (CSR), related...

CVE-2012-1573

CVE-2012-1573 affects GnuTLS: gnutls_cipher.c in libgnutls handles data encrypted with a block cipher incorrectly, allowing remote attackers to trigger a denial of service (heap memory corruption and crash) via a crafted GenericBlockCipher record. It affects GnuTLS versions before 2.12.17 and 3.x...

CVE-2025-32989

CVE-2025-32989 : A heap-buffer-overread in GnuTLS occurs during X.509 certificate parsing of the CT SCT extension (OID 1.3.6.1.4.1.11129.2.4.2). A malformed SCT can lead to exposure of confidential data when certificates are validated for certain sites and SCT checks are not performed correctly. ...

CVE-2014-1959

GnuTLS CVE-2014-1959 affects lib/x509/verify.c where an X.509 Version 1 certificate is erroneously treated as an intermediate CA. This allows remote attackers who have a trusted V1 cert to issue new certificates, bypassing certain restrictions. Affected are GnuTLS releases prior to 3.1.21 and 3.2...

CVE-2005-1431

The CVE-2005-1431 issue affects GnuTLS: record packet parsing bug in GnuTLS 1.2 before 1.2.3 and 1.0 before 1.0.25 can allow a remote attacker to cause a denial-of-service via crafted TLS handshakes (padding bytes in gnutils_cipher.c). The vulnerability is rated CVSS v2 base 5.0 (Network attack, ...

CVE-2015-8313

CVE-2015-8313 affects GnuTLS: the first padding byte in CBC mode is not correctly validated, enabling a MITM POODLE-style attack to potentially reveal plaintext. Connected sources show this vulnerability cited in multiple advisories (Debian DLA-364-1, SUSE/SUSE-SU-2016:0077-1, IBM FSM bulletin, N...

CVE-2009-5138

GnuTLS before 2.7.6 is vulnerable when GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT is not enabled: X.509 v1 certificates may be treated as intermediate CAs, allowing a remote attacker to issue new certificates. Affected: GnuTLS library (pre-2.7.6). Remediation: upgrade to 2.7.6 or newer (per the CVE descr...

CVE-2008-1950

CVE-2008-1950 affects the GnuTLS stack (libgnutls) with an integer signedness flaw in _gnutls_ciphertext2compressed, exploitable via a crafted Random field in an encrypted Client Hello within a TLS record with invalid Record Length. This can trigger a buffer over-read and cause a denial of servic...

CVE-2014-3465

CVE-2014-3465 affects GnuTLS, specifically gnutls_x509_dn_oid_name in lib/x509/common.c. In GnuTLS 3.0.x before 3.1.20 and 3.2.x before 3.2.10, processing an X.509 DN with an OID lacking an LDAP description can trigger a NULL pointer dereference via crafted certificates, causing a denial of servi...

CVE-2006-7239

The CVE-2006-7239 issue affects GnuTLS up to version 1.4.1, where _gnutls_x509_oid2mac_algorithm in lib/gnutls_algorithms.c can dereference NULL when processing X.509 certificates that use a hash algorithm not supported by GnuTLS, enabling a remote DoS through a crash. Affected component: GnuTLS ...

CVE-2013-4487

GnuTLS libdane contains an off-by-one in dane_raw_tlsa that can cause memory corruption/DoS when a DNS response includes more than four DANE entries. Affected: GnuTLS 3.1.x before 3.1.16 and 3.2.x before 3.2.6; root cause tied to incomplete fix for CVE-2013-4466. Remediation: upgrade to 3.1.16 or...

CVE-2009-1417

CVE-2009-1417 concerns gnutls-cli in GnuTLS prior to 2.6.6, where the time checks for X.509 certificates are not performed in _gnutls_x509_verify_certificate. This allows a remote attacker to present a certificate that is not yet valid or has expired, with downstream impact on affected apps (Exim...