Headline
RHSA-2023:3095: Red Hat Security Advisory: libreswan security and bug fix update
An update for libreswan is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
Related CVEs:
- CVE-2023-23009: A flaw was found in the Libreswan package. A crafted TS payload with an incorrect selector length may allow a remote attacker to cause a denial of service.
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Issued:
2023-05-16
Updated:
2023-05-16
RHSA-2023:3095 - Security Advisory
- Overview
- Updated Packages
Synopsis
Moderate: libreswan security and bug fix update
Type/Severity
Security Advisory: Moderate
Red Hat Insights patch analysis
Identify and remediate systems affected by this advisory.
View affected systems
Topic
An update for libreswan is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
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: remote DoS via crafted TS payload with an incorrect selector length (CVE-2023-23009)
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.
Bug Fix(es):
- authby=rsasig fails in FIPS policy (BZ#2187647)
Affected Products
- Red Hat Enterprise Linux for x86_64 8 x86_64
- Red Hat Enterprise Linux for IBM z Systems 8 s390x
- Red Hat Enterprise Linux for Power, little endian 8 ppc64le
- Red Hat Enterprise Linux for ARM 64 8 aarch64
Fixes
- BZ - 2173610 - CVE-2023-23009 libreswan: remote DoS via crafted TS payload with an incorrect selector length
- BZ - 2187647 - authby=rsasig fails in FIPS policy [rhel-8.8.0.z]
Red Hat Enterprise Linux for x86_64 8
SRPM
libreswan-4.9-2.el8_8.2.src.rpm
SHA-256: e441b5d2963218cf2be789b96ec55adabed677b6eba051c59d7dc668e9e149bd
x86_64
libreswan-4.9-2.el8_8.2.x86_64.rpm
SHA-256: ac49fa60f97ce498b6d2b806d5e31721ba3c2f7f32609a7607ddf90daa942724
libreswan-debuginfo-4.9-2.el8_8.2.x86_64.rpm
SHA-256: 885262ec6cc416164ea8e7b8a3423677fb9dcfd7f3ff706968c421a68ef1d0e8
libreswan-debugsource-4.9-2.el8_8.2.x86_64.rpm
SHA-256: a5e434e37f50e634c080a6ba067af29b4c4534082d79a321984042ee69ae6b15
Red Hat Enterprise Linux for IBM z Systems 8
SRPM
libreswan-4.9-2.el8_8.2.src.rpm
SHA-256: e441b5d2963218cf2be789b96ec55adabed677b6eba051c59d7dc668e9e149bd
s390x
libreswan-4.9-2.el8_8.2.s390x.rpm
SHA-256: 1cd8b20a76a33c40434afd1b587d7befa14d0ac9022838fcbb7fd623a25dde4b
libreswan-debuginfo-4.9-2.el8_8.2.s390x.rpm
SHA-256: 00d596da4d0d05e7b560c08f971b16ea713168155d8de04b5c8b6864860bd21c
libreswan-debugsource-4.9-2.el8_8.2.s390x.rpm
SHA-256: 4e68c60159287ee1bdda0769b93220afcef37f78d69de91a2de8007c6427e72a
Red Hat Enterprise Linux for Power, little endian 8
SRPM
libreswan-4.9-2.el8_8.2.src.rpm
SHA-256: e441b5d2963218cf2be789b96ec55adabed677b6eba051c59d7dc668e9e149bd
ppc64le
libreswan-4.9-2.el8_8.2.ppc64le.rpm
SHA-256: d2492f91a1a3c666c5b37fafb1e66cfe78aa245b676f2c9ed30ab4fb31cf3a1a
libreswan-debuginfo-4.9-2.el8_8.2.ppc64le.rpm
SHA-256: a0d500523c6620d7d678783f84b7b9bc0df2ba122f746424305330eb152b6e6f
libreswan-debugsource-4.9-2.el8_8.2.ppc64le.rpm
SHA-256: f603d384cd049f116aafc70c9e3a45152eda69b350f8fe4197586279236c97f1
Red Hat Enterprise Linux for ARM 64 8
SRPM
libreswan-4.9-2.el8_8.2.src.rpm
SHA-256: e441b5d2963218cf2be789b96ec55adabed677b6eba051c59d7dc668e9e149bd
aarch64
libreswan-4.9-2.el8_8.2.aarch64.rpm
SHA-256: dcd5490c1dcdd9a900ae84e879b44996785f00dc26ad31318009119ad6d3f21a
libreswan-debuginfo-4.9-2.el8_8.2.aarch64.rpm
SHA-256: 938201b8f2598a3296115afed138ec8dec6033b664cc7f6507f469f0e166b1a1
libreswan-debugsource-4.9-2.el8_8.2.aarch64.rpm
SHA-256: 00abaad8fa5b2815b17e57aa9b2d967770aefdbe55726025c1f888b46b8230ac
The Red Hat security contact is [email protected]. More contact details at https://access.redhat.com/security/team/contact/.
Related news
An update for libreswan is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2023-23009: A flaw was found in the Libreswan package. A crafted TS payload with an incorrect selector length may allow a remote attacker to cause a denial of service.
Debian Linux Security Advisory 5368-1 - It was discovered that the libreswan IPsec implementation could be forced into a crash/restart via malformed IKEv2 packets after peer authentication, resulting in denial of service.
Libreswan 4.9 allows remote attackers to cause a denial of service (assert failure and daemon restart) via crafted TS payload with an incorrect selector length.