CVSS: 7.5EPSS: 0%CPEs: 4EXPL: 1CVE-2024-0553 – Gnutls: incomplete fix for cve-2023-5981
https://notcve.org/view.php?id=CVE-2024-0553
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. Se encontró una vulnerabilidad en GnuTLS. • http://www.openwall.com/lists/oss-security/2024/01/19/3 https://access.redhat.com/errata/RHSA-2024:0533 https://access.redhat.com/errata/RHSA-2024:0627 https://access.redhat.com/errata/RHSA-2024:0796 https://access.redhat.com/errata/RHSA-2024:1082 https://access.redhat.com/errata/RHSA-2024:1108 https://access.redhat.com/errata/RHSA-2024:1383 https://access.redhat.com/errata/RHSA-2024:2094 https://access.redhat.com/security/cve/CVE-2024-0553 https://bugzilla.red • CWE-203: Observable Discrepancy •
CVSS: 6.5EPSS: 0%CPEs: 6EXPL: 0CVE-2021-4209
https://notcve.org/view.php?id=CVE-2021-4209
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. Se ha encontrado un fallo de desreferencia de puntero NULL en GnuTLS. Como las funciones de actualización de hash de Nettle llaman internamente a memcpy, proporcionar una entrada de longitud cero puede causar un comportamiento indefinido. • https://access.redhat.com/security/cve/CVE-2021-4209 https://bugzilla.redhat.com/show_bug.cgi?id=2044156 https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568 https://gitlab.com/gnutls/gnutls/-/issues/1306 https://gitlab.com/gnutls/gnutls/-/merge_requests/1503 https://security.netapp.com/advisory/ntap-20220915-0005 • CWE-476: NULL Pointer Dereference •
CVSS: 7.5EPSS: 0%CPEs: 6EXPL: 0CVE-2022-2509 – gnutls: Double free during gnutls_pkcs7_verify
https://notcve.org/view.php?id=CVE-2022-2509
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. Una vulnerabilidad encontrada en gnutls. Este fallo de seguridad es producida por un error de doble liberación durante la verificación de firmas pkcs7 en la función gnutls_pkcs7_verify A vulnerability was found in gnutls. This issue is due to a double-free error that occurs during the verification of pkcs7 signatures in the gnutls_pkcs7_verify function. • https://access.redhat.com/security/cve/CVE-2022-2509 https://lists.debian.org/debian-lts-announce/2022/08/msg00002.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FL27JS3VM74YEQU7PGB62USO3KSBYZX https://lists.gnupg.org/pipermail/gnutls-help/2022-July/004746.html https://www.debian.org/security/2022/dsa-5203 https://bugzilla.redhat.com/show_bug.cgi?id=2108977 • CWE-415: Double Free •
CVSS: 7.5EPSS: 0%CPEs: 6EXPL: 1CVE-2020-24659 – gnutls: Heap buffer overflow in handshake with no_renegotiation alert sent
https://notcve.org/view.php?id=CVE-2020-24659
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. Se detectó un problema en GnuTLS versiones anteriores a 3.6.15. Un servidor puede desencadenar una desreferencia del puntero NULL en un cliente TLS versión 1.3, si una alerta no_renegotiation es enviada con una sincronización no prevista y luego se produce un segundo protocolo de enlace no válido. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00054.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00060.html https://gitlab.com/gnutls/gnutls/-/issues/1071 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62BUAI4FQQLG6VTKRT7SUZPGJJ4NASQ3 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWN56FDLQQXT2D2YHNI4TYH432TDMQ7N https://security.gentoo.org/glsa/202009-01 https://security.netapp.com/adviso • CWE-20: Improper Input Validation CWE-476: NULL Pointer Dereference CWE-787: Out-of-bounds Write •
CVSS: 5.6EPSS: 0%CPEs: 1EXPL: 0CVE-2018-16868
https://notcve.org/view.php?id=CVE-2018-16868
A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server. Se ha detectado un ataque de oráculo de relleno basado en canales laterales de tipo Bleichenbacher en la manera en la que gnutls maneja la verificación de los datos PKCS#1 v1.5 descifrados de un cifrado RSA. Un atacante que sea capaz de ejecutar un proceso en el mismo núcleo físico que el proceso víctima podría usarlo para extraer texto plano o, en algunos casos, desactualizar algunas conexiones TLS a un servidor vulnerable. • http://cat.eyalro.net http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00017.html http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00068.html http://www.securityfocus.com/bid/106080 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16868 • CWE-203: Observable Discrepancy •