Synopsis
Important: libreswan security update
Description
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: Denial of Service via sending bogus X.509 certificates (CVE-2026-77205)
* 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.
Affected products
Rocky Linux 10 aarch64
Rocky Linux 10 ppc64le
Rocky Linux 10 riscv64
Rocky Linux 10 s390x
Rocky Linux 10 x86_64
Fixes
2550254
2550255
2550258
CVEs
CVE-2026-77205
CVE-2026-77207
CVE-2026-94453
Affected packages
Rocky Linux 10 s390x - AppStream
libreswan-debugsource-0:5.3.3-1.el10_2.s390x.rpm
libreswan-minimal-0:5.3.3-1.el10_2.s390x.rpm
libreswan-0:5.3.3-1.el10_2.s390x.rpm
libreswan-0:5.3.3-1.el10_2.src.rpm
libreswan-minimal-debuginfo-0:5.3.3-1.el10_2.s390x.rpm
Rocky Linux 10 ppc64le - AppStream
libreswan-0:5.3.3-1.el10_2.ppc64le.rpm
libreswan-debugsource-0:5.3.3-1.el10_2.ppc64le.rpm
libreswan-0:5.3.3-1.el10_2.src.rpm
libreswan-minimal-0:5.3.3-1.el10_2.ppc64le.rpm
libreswan-minimal-debuginfo-0:5.3.3-1.el10_2.ppc64le.rpm
Rocky Linux 10 aarch64 - AppStream
libreswan-minimal-debuginfo-0:5.3.3-1.el10_2.aarch64.rpm
libreswan-minimal-0:5.3.3-1.el10_2.aarch64.rpm
libreswan-0:5.3.3-1.el10_2.src.rpm
libreswan-0:5.3.3-1.el10_2.aarch64.rpm
libreswan-debugsource-0:5.3.3-1.el10_2.aarch64.rpm
Rocky Linux 10 x86_64 - AppStream
libreswan-debugsource-0:5.3.3-1.el10_2.x86_64.rpm
libreswan-minimal-0:5.3.3-1.el10_2.x86_64.rpm
libreswan-0:5.3.3-1.el10_2.src.rpm
libreswan-0:5.3.3-1.el10_2.x86_64.rpm
libreswan-minimal-debuginfo-0:5.3.3-1.el10_2.x86_64.rpm
Rocky Linux 10 riscv64 - AppStream
libreswan-0:5.3.3-1.el10_2.src.rpm