libreswan security update

An update is available for libreswan. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the...

librenswan: IKEv1 Denial of Service via RSA-SHA1 (PKCS#1 Version 1.5 Encrypted) authentication payload

A flaw was found in Libreswan's implementation of IKEv1 authentication via raw RSA signatures. When processing an IKEv1 packet using PKCS 1 v1.5 RSA encryption, the RSAauthenticatehashsignaturerawrsa function fails to properly validate the length of the authentication hash. A remote,...

Important: Red Hat Security Advisory: libreswan security update

An update for libreswan is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability fro...

Important: libreswan security update

Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network VPN...

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...