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Red Hat Security Advisory

Synopsis: Important: libreswan security update
Advisory ID: RHSA-2020:2071-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2071
Issue date: 2020-05-12
CVE Names: CVE-2020-1763
=====================================================================

1. Summary:

An update for libreswan is now available for Red Hat Enterprise Linux 8.1
Extended Update Support.

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
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream EUS (v. 8.1) – 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).

Security Fix(es):

* libreswan: DoS attack via malicious IKEv1 informational exchange message
(CVE-2020-1763)

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.

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/):

1814541 – CVE-2020-1763 libreswan: DoS attack via malicious IKEv1 informational exchange message

6. Package List:

Red Hat Enterprise Linux AppStream EUS (v. 8.1):

Source:
libreswan-3.29-7.el8_1.src.rpm

aarch64:
libreswan-3.29-7.el8_1.aarch64.rpm
libreswan-debuginfo-3.29-7.el8_1.aarch64.rpm
libreswan-debugsource-3.29-7.el8_1.aarch64.rpm

ppc64le:
libreswan-3.29-7.el8_1.ppc64le.rpm
libreswan-debuginfo-3.29-7.el8_1.ppc64le.rpm
libreswan-debugsource-3.29-7.el8_1.ppc64le.rpm

s390x:
libreswan-3.29-7.el8_1.s390x.rpm
libreswan-debuginfo-3.29-7.el8_1.s390x.rpm
libreswan-debugsource-3.29-7.el8_1.s390x.rpm

x86_64:
libreswan-3.29-7.el8_1.x86_64.rpm
libreswan-debuginfo-3.29-7.el8_1.x86_64.rpm
libreswan-debugsource-3.29-7.el8_1.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-2020-1763
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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Hash: SHA256

=====================================================================
Red Hat Security Advisory

Synopsis: Important: libreswan security update
Advisory ID: RHSA-2020:2069-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2069
Issue date: 2020-05-12
CVE Names: CVE-2020-1763
=====================================================================

1. Summary:

An update for libreswan is now available for Red Hat Enterprise Linux 8.0
Update Services for SAP Solutions.

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
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream E4S (v. 8.0) – 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).

Security Fix(es):

* libreswan: DoS attack via malicious IKEv1 informational exchange message
(CVE-2020-1763)

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.

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/):

1814541 – CVE-2020-1763 libreswan: DoS attack via malicious IKEv1 informational exchange message

6. Package List:

Red Hat Enterprise Linux AppStream E4S (v. 8.0):

Source:
libreswan-3.27-10.el8_0.src.rpm

aarch64:
libreswan-3.27-10.el8_0.aarch64.rpm
libreswan-debuginfo-3.27-10.el8_0.aarch64.rpm
libreswan-debugsource-3.27-10.el8_0.aarch64.rpm

ppc64le:
libreswan-3.27-10.el8_0.ppc64le.rpm
libreswan-debuginfo-3.27-10.el8_0.ppc64le.rpm
libreswan-debugsource-3.27-10.el8_0.ppc64le.rpm

s390x:
libreswan-3.27-10.el8_0.s390x.rpm
libreswan-debuginfo-3.27-10.el8_0.s390x.rpm
libreswan-debugsource-3.27-10.el8_0.s390x.rpm

x86_64:
libreswan-3.27-10.el8_0.x86_64.rpm
libreswan-debuginfo-3.27-10.el8_0.x86_64.rpm
libreswan-debugsource-3.27-10.el8_0.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-2020-1763
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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