RLSA-2026:90492

    Dashboard / Vulnerabilities / RLSA-2026:90492

    RLSA-2026:90492

    Published: 29 Oct 2026Last Modified: 29 Oct 2026

    Summary: Important: libreswan security update

    Details: 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). Security Fix(es): * libreswan: IKEv2 Use-After-Free bug when using IKE-over-TCP (CVE-2026-94453) * libreswan: IKEv2 pre-authentication Null Pointer deref in EAP code (CVE-2026-77206) * libreswan: Null Pointer Dereference in PKCS#7 bundle with no CERTS (CVE-2026-77207) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    References: https://errata.rockylinux.org/RLSA-2026:90492, https://bugzilla.redhat.com/show_bug.cgi?id=2550254, https://bugzilla.redhat.com/show_bug.cgi?id=2550256, https://bugzilla.redhat.com/show_bug.cgi?id=2550258, https://access.redhat.com/errata/RHSA-2026:90492

    Affected packages

    Package

    Name: libreswan

    Purl: pkg:rpm/rocky-linux/libreswan?distro=rocky-linux-8&epoch=0

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0:4.12-2.el8_10.7

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    RLSA-2026:90492 | CVE-DB