CVE-2026-50722 IKEv2 Denial of Service via RSA-SHA1 (PKCS#1 RSASSA-PKCS1-v1_5) authentication payload

Libreswan, via the function RSAauthenticatehashsignaturepkcs115rsa, did not correctly verify the DER encoding of the ASN.1 digest when the IKEv2 AUTH payload was encoded using RSASSA-PKCS1-v15 RFC 8017. A remote attacker can use a variation on the Bleichenbacher attack to forge the AUTH payload...

ENS DNSSEC Oracle Vulnerable to RSA Signature Forgery via Missing PKCS#1 v1.5 Padding Validation

Impact The RSASHA256Algorithm and RSASHA1Algorithm contracts fail to validate PKCS1 v1.5 padding structure when verifying RSA signatures. The contracts only check if the last 32 or 20 bytes of the decrypted signature match the expected hash. This enables Bleichenbacher's 2006 signature forgery...

SUSE-SU-2026:20085-1 Security update for bind

This update for bind fixes the following issues: - Upgrade to release 9.20.15 Security Fixes: CVE-2025-40778: Fixed cache poisoning attacks with unsolicited RRs bsc1252379 CVE-2025-40780: Fixed cache poisoning due to weak PRNG bsc1252380 CVE-2025-8677: Fixed resource exhaustion via malformed DNSK...

gnutls 3.6.6 - verify_crt() Use-After-Free

gnutls 3.6.6 - verifycrt Use-After-Free Description of problem: This is a critical memory corruption vulnerability in any API backed by verifycrt, including gnutlsx509trustlistverifycrt and related routines. I suspect any client or server that verifies X.509 certificates with GnuTLS is likely...