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Red Hat Security Advisory

Synopsis: Low: libreswan security and bug fix update
Advisory ID: RHSA-2019:3391-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:3391
Issue date: 2019-11-05
CVE Names: CVE-2019-10155
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1. Summary:

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 Low. 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 8) – aarch64, ppc64le, s390x, x86_64

3. 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).

The following packages have been upgraded to a later upstream version:
libreswan (3.29). (BZ#1738853)

Security Fix(es):

* libreswan: vulnerability in the processing of IKEv1 informational packets
due to missing integrity check (CVE-2019-10155)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 8.1 Release Notes linked from the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1608353 – /usr/sbin/ipsec part of the libreswan packages still invokes commands that were deprecated a decade ago
1679394 – libreswan using NSS IPsec profiles regresses when critical flags are set causing validation failure
1683706 – Libreswan shows incorrect error messages
1699318 – ‘ipsec show’ has python3 invalid syntax
1706180 – Remove last usage of old (unused) PF_KEY API
1712555 – libreswan rebase to 3.29
1713734 – barf: shell syntax error in barf diagnostic tool
1714141 – CVE-2019-10155 libreswan: vulnerability in the processing of IKEv1 informational packets due to missing integrity check
1714331 – support NSS based IKE KDF’s so libreswan does not need FIPS certification
1723957 – libreswan is missing linux audit calls for failed IKE SAs and failed IPsec SAs required for Common Criteria

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
libreswan-3.29-6.el8.src.rpm

aarch64:
libreswan-3.29-6.el8.aarch64.rpm
libreswan-debuginfo-3.29-6.el8.aarch64.rpm
libreswan-debugsource-3.29-6.el8.aarch64.rpm

ppc64le:
libreswan-3.29-6.el8.ppc64le.rpm
libreswan-debuginfo-3.29-6.el8.ppc64le.rpm
libreswan-debugsource-3.29-6.el8.ppc64le.rpm

s390x:
libreswan-3.29-6.el8.s390x.rpm
libreswan-debuginfo-3.29-6.el8.s390x.rpm
libreswan-debugsource-3.29-6.el8.s390x.rpm

x86_64:
libreswan-3.29-6.el8.x86_64.rpm
libreswan-debuginfo-3.29-6.el8.x86_64.rpm
libreswan-debugsource-3.29-6.el8.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2019-10155
https://access.redhat.com/security/updates/classification/#low
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.1_release_notes/

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2019 Red Hat, Inc.
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