Total
66 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2008-1949 | 1 Gnu | 1 Gnutls | 2024-11-21 | 9.3 HIGH | N/A |
| The _gnutls_recv_client_kx_message function in lib/gnutls_kx.c in libgnutls in gnutls-serv in GnuTLS before 2.2.4 continues to process Client Hello messages within a TLS message after one has already been processed, which allows remote attackers to cause a denial of service (NULL dereference and crash) via a TLS message containing multiple Client Hello messages, aka GNUTLS-SA-2008-1-2. | |||||
| CVE-2008-1948 | 1 Gnu | 1 Gnutls | 2024-11-21 | 10.0 HIGH | N/A |
| The _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 the number of Server Names in a TLS 1.0 Client Hello message during extension handling, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a zero value for the length of Server Names, which leads to a buffer overflow in session resumption data in the pack_security_parameters function, aka GNUTLS-SA-2008-1-1. | |||||
| CVE-2006-7239 | 1 Gnu | 1 Gnutls | 2024-11-21 | 5.0 MEDIUM | N/A |
| 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 service (crash) via a crafted X.509 certificate that uses a hash algorithm that is not supported by GnuTLS, which triggers a NULL pointer dereference. | |||||
| CVE-2006-4790 | 1 Gnu | 1 Gnutls | 2024-11-21 | 5.0 MEDIUM | N/A |
| verify.c in GnuTLS before 1.4.4, when using an RSA key with exponent 3, does not properly handle excess data in the digestAlgorithm.parameters field when generating a hash, which allows remote attackers to forge a PKCS #1 v1.5 signature that is signed by that RSA key and prevents GnuTLS from correctly verifying X.509 and other certificates that use PKCS, a variant of CVE-2006-4339. | |||||
| CVE-2005-1431 | 1 Gnu | 1 Gnutls | 2024-11-20 | 5.0 MEDIUM | N/A |
| The "record packet parsing" in GnuTLS 1.2 before 1.2.3 and 1.0 before 1.0.25 allows remote attackers to cause a denial of service, possibly related to padding bytes in gnutils_cipher.c. | |||||
| CVE-2004-2531 | 1 Gnu | 1 Gnutls | 2024-11-20 | 7.8 HIGH | N/A |
| X.509 Certificate Signature Verification in Gnu transport layer security library (GnuTLS) 1.0.16 allows remote attackers to cause a denial of service (CPU consumption) via certificates containing long chains and signed with large RSA keys. | |||||
| CVE-2024-0567 | 4 Debian, Fedoraproject, Gnu and 1 more | 4 Debian Linux, Fedora, Gnutls and 1 more | 2024-09-16 | N/A | 7.5 HIGH |
| A vulnerability was found in GnuTLS, where a cockpit (which uses gnuTLS) rejects a certificate chain with distributed trust. This issue occurs when validating a certificate chain with cockpit-certificate-ensure. This flaw allows an unauthenticated, remote client or attacker to initiate a denial of service attack. | |||||
| CVE-2024-0553 | 3 Fedoraproject, Gnu, Redhat | 3 Fedora, Gnutls, Enterprise Linux | 2024-09-16 | N/A | 7.5 HIGH |
| A vulnerability was found in GnuTLS. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from the response times of ciphertexts with correct PKCS#1 v1.5 padding. This issue may allow a remote attacker to perform a timing side-channel attack in the RSA-PSK key exchange, potentially leading to the leakage of sensitive data. CVE-2024-0553 is designated as an incomplete resolution for CVE-2023-5981. | |||||
| CVE-2023-5981 | 3 Fedoraproject, Gnu, Redhat | 3 Fedora, Gnutls, Linux | 2024-09-16 | N/A | 5.9 MEDIUM |
| A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding. | |||||
| CVE-2014-3466 | 1 Gnu | 1 Gnutls | 2024-02-14 | 6.8 MEDIUM | N/A |
| Buffer overflow in the read_server_hello function in lib/gnutls_handshake.c in GnuTLS before 3.1.25, 3.2.x before 3.2.15, and 3.3.x before 3.3.4 allows remote servers to cause a denial of service (memory corruption) or possibly execute arbitrary code via a long session id in a ServerHello message. | |||||
| CVE-2023-0361 | 5 Debian, Fedoraproject, Gnu and 2 more | 7 Debian Linux, Fedora, Gnutls and 4 more | 2024-02-04 | N/A | 7.4 HIGH |
| A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to send a large amount of specially crafted messages to the vulnerable server. By recovering the secret from the ClientKeyExchange message, the attacker would be able to decrypt the application data exchanged over that connection. | |||||
| CVE-2021-4209 | 3 Gnu, Netapp, Redhat | 6 Gnutls, Active Iq Unified Manager, Hci Bootstrap Os and 3 more | 2024-02-04 | N/A | 6.5 MEDIUM |
| A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances. | |||||
| CVE-2022-2509 | 4 Debian, Fedoraproject, Gnu and 1 more | 4 Debian Linux, Fedora, Gnutls and 1 more | 2024-02-04 | N/A | 7.5 HIGH |
| A vulnerability found in gnutls. This security flaw happens because of a double free error occurs during verification of pkcs7 signatures in gnutls_pkcs7_verify function. | |||||
| CVE-2021-20232 | 3 Fedoraproject, Gnu, Redhat | 3 Fedora, Gnutls, Enterprise Linux | 2024-02-04 | 7.5 HIGH | 9.8 CRITICAL |
| A 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 potential consequences. | |||||
| CVE-2021-20231 | 4 Fedoraproject, Gnu, Netapp and 1 more | 5 Fedora, Gnutls, Active Iq Unified Manager and 2 more | 2024-02-04 | 7.5 HIGH | 9.8 CRITICAL |
| A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences. | |||||
| CVE-2020-24659 | 4 Canonical, Fedoraproject, Gnu and 1 more | 4 Ubuntu Linux, Fedora, Gnutls and 1 more | 2024-02-04 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure. | |||||
| CVE-2020-13777 | 4 Canonical, Debian, Fedoraproject and 1 more | 4 Ubuntu Linux, Debian Linux, Fedora and 1 more | 2024-02-04 | 5.8 MEDIUM | 7.4 HIGH |
| GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket (a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3). The earliest affected version is 3.6.4 (2018-09-24) because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS server always uses wrong data in place of an encryption key derived from an application. | |||||
| CVE-2020-11501 | 5 Canonical, Debian, Fedoraproject and 2 more | 5 Ubuntu Linux, Debian Linux, Fedora and 2 more | 2024-02-04 | 5.8 MEDIUM | 7.4 HIGH |
| GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks the security guarantees of the DTLS protocol. | |||||
| CVE-2015-0294 | 3 Debian, Gnu, Redhat | 3 Debian Linux, Gnutls, Enterprise Linux | 2024-02-04 | 5.0 MEDIUM | 7.5 HIGH |
| GnuTLS before 3.3.13 does not validate that the signature algorithms match when importing a certificate. | |||||
| CVE-2015-8313 | 2 Debian, Gnu | 2 Debian Linux, Gnutls | 2024-02-04 | 4.3 MEDIUM | 5.9 MEDIUM |
| GnuTLS incorrectly validates the first byte of padding in CBC modes | |||||