gnutls: Fix of CVE-2026-42012

CVE-2026-42012: URI subjectAltName now precludes Common Name fallback in hostname verification...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.14.73 bug fix and security update

Red Hat OpenShift Container Platform release 4.14.73 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.14. Red Hat Product Security has rated this update as having a...

Astra Linux – Vulnerability in gnutls28

There is a heap buffer overflow vulnerability in the DTLS handshake fragment reassembly logic of GnuTLS. The issue arises in the mergehandshakepacket function, where incoming handshake fragments are matched and merged solely based on the handshake type, without verifying that the messagelength...

Astra Linux – Vulnerability in gnutls28

A flaw in GnuTLS’ DTLS handshake parsing allows for malformed fragments with zero length and non-zero offsets. This leads to an integer underflow during reassembly, resulting in an out-of-bounds read. This issue is remotely exploitable and could cause information disclosure or denial of service...

Astra Linux – Vulnerability in gnutls28

A flaw was discovered in GnuTLS. The gnutlspkcs11tokensetpin function, which is used to change the Security Officer PIN, can lead to a use-after-free vulnerability. This occurs when an attacker attempts to change the PIN with a NULL old PIN for a token that lacks a protected authentication path...

Astra Linux – Vulnerability in gnutls28

A flaw was discovered in gnutls. When validating certificates, an excessively large Subject Alternative Name SAN could cause the validation process to incorrectly revert to checking the Common Name CN field. This could allow a remote attacker to bypass proper certificate validation, potentially...

Astra Linux – Vulnerability in gnutls28

A vulnerability was identified: the response times for malformed ciphertexts in RSA-PSK ClientKeyExchange differ from those of ciphertexts with correct PKCS1 v1.5 padding...

Astra Linux – Vulnerability in gnutls28

A issue was discovered in GnuTLS before version 3.6.15. A server can cause a NULL pointer dereferencing in a TLS 1.3 client if a norenegotiation alert is sent at an unexpected time, resulting in an invalid second handshake. The crash occurs during the application’s error handling process, where t...

Astra Linux – Vulnerability in gnutls28

A flaw was discovered in GnuTLS. There exists a double-free vulnerability in GnuTLS due to incorrect handling of ownership in the export logic of Subject Alternative Name SAN entries that contain an otherName. If the type-id OID is invalid or malformed, GnuTLS will call asn1deletestructure on an...

Astra Linux – Vulnerability in gnutls28

A timing side-channel vulnerability in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be used to recover the key encrypted in the RSA ciphertext across a network, in a Bleichenbacher-style attack. To successfully decrypt the data, the attacker would...

Astra Linux – Vulnerability in gnutls28

A vulnerability has been discovered in gnutls. This security flaw occurs due to a double-free error that occurs during the verification of pkcs7 signatures in the gnutlspkcs7verify function...

Astra Linux – Vulnerability in gnutls28

A NULL pointer dereference flaw was discovered in GnuTLS. Since Nettle’s hash update functions internally call memcpy, using zero-length inputs may lead to undefined behavior. This flaw can result in a denial of service after authentication in rare circumstances...

Astra Linux – Vulnerability in gnutls28

A flaw was discovered in gnutls. A use-after-free issue in the client’s sending of the keyshare extension may lead to memory corruption and other related issues...

Astra Linux – Vulnerability in Samba

In Samba, GnuTLS’ gnutlsrnd function may fail, resulting in predictable random values...

Astra Linux – Vulnerability in gnutls28

A flaw was discovered in GnuTLS. This vulnerability allows for a denial of service attack through excessive CPU usage and memory consumption, caused by specially crafted malicious certificates that contain a large number of name constraints and Subject Alternative Names SANs...

Astra Linux – Vulnerability in gnutls28

A flaw was discovered in gnutls. This vulnerability arises because gnutls performs case-sensitive comparisons of nameConstraints labels, particularly for dNSName DNS or rfc822Name email constraints within excludedSubtrees or permittedSubtrees. A remote attacker can exploit this vulnerability by...

Astra Linux – Vulnerability in gnutls28

A flaw was discovered in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier URI or Service SRV Subject Alternative Names SANs. This could cause the certificate validation process to incorrectly fall ba...

Astra Linux – Vulnerability in gnutls28

A vulnerability was discovered in GnuTLS. The response times to malformed ciphertexts in the RSA-PSK ClientKeyExchange differ from those of ciphertexts with correct PKCS1 v1.5 padding. This issue may allow a remote attacker to perform a timing side-channel attack during the RSA-PSK key exchange,...

CVE-2026-57163

A flaw was found in PJSIP. A stack buffer overflow exists in the GnuTLS TLS backend when parsing the Subject Alternative Name extension of a peer certificate. A remote attacker can exploit this by presenting a specially crafted certificate during the TLS handshake, before SIP-level authentication...

EulerOS 2.0 SP12 : gnutls (EulerOS-SA-2026-3263)

According to the versions of the gnutls packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform...