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

Synopsis:          Moderate: libseccomp security, bug fix, and enhancement update
Advisory ID:       RHSA-2019:3624-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:3624
Issue date:        2019-11-05
CVE Names:         CVE-2019-9893 
=====================================================================

1. Summary:

An update for libseccomp 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.

2. Relevant releases/architectures:

Red Hat CodeReady Linux Builder (v. 8) - aarch64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

3. Description:

The libseccomp library provides an interface to the Linux Kernel's syscall
filtering mechanism, seccomp. The libseccomp API allows an application to
specify which system calls or system call arguments the application is
allowed to execute, all of which are then enforced by the Linux Kernel.

The following packages have been upgraded to a later upstream version:
libseccomp (2.4.1). (BZ#1688938)

Security Fix(es):

* libseccomp: incorrect generation of syscall filters in libseccomp
(CVE-2019-9893)

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/):

1688938 - Rebase libseccomp to version 2.4
1690897 - CVE-2019-9893 libseccomp: incorrect generation of syscall filters in libseccomp

6. Package List:

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
libseccomp-2.4.1-1.el8.src.rpm

aarch64:
libseccomp-2.4.1-1.el8.aarch64.rpm
libseccomp-debuginfo-2.4.1-1.el8.aarch64.rpm
libseccomp-debugsource-2.4.1-1.el8.aarch64.rpm
libseccomp-devel-debuginfo-2.4.1-1.el8.aarch64.rpm

ppc64le:
libseccomp-2.4.1-1.el8.ppc64le.rpm
libseccomp-debuginfo-2.4.1-1.el8.ppc64le.rpm
libseccomp-debugsource-2.4.1-1.el8.ppc64le.rpm
libseccomp-devel-debuginfo-2.4.1-1.el8.ppc64le.rpm

s390x:
libseccomp-2.4.1-1.el8.s390x.rpm
libseccomp-debuginfo-2.4.1-1.el8.s390x.rpm
libseccomp-debugsource-2.4.1-1.el8.s390x.rpm
libseccomp-devel-debuginfo-2.4.1-1.el8.s390x.rpm

x86_64:
libseccomp-2.4.1-1.el8.i686.rpm
libseccomp-2.4.1-1.el8.x86_64.rpm
libseccomp-debuginfo-2.4.1-1.el8.i686.rpm
libseccomp-debuginfo-2.4.1-1.el8.x86_64.rpm
libseccomp-debugsource-2.4.1-1.el8.i686.rpm
libseccomp-debugsource-2.4.1-1.el8.x86_64.rpm
libseccomp-devel-debuginfo-2.4.1-1.el8.i686.rpm
libseccomp-devel-debuginfo-2.4.1-1.el8.x86_64.rpm

Red Hat CodeReady Linux Builder (v. 8):

aarch64:
libseccomp-debuginfo-2.4.1-1.el8.aarch64.rpm
libseccomp-debugsource-2.4.1-1.el8.aarch64.rpm
libseccomp-devel-2.4.1-1.el8.aarch64.rpm
libseccomp-devel-debuginfo-2.4.1-1.el8.aarch64.rpm

ppc64le:
libseccomp-debuginfo-2.4.1-1.el8.ppc64le.rpm
libseccomp-debugsource-2.4.1-1.el8.ppc64le.rpm
libseccomp-devel-2.4.1-1.el8.ppc64le.rpm
libseccomp-devel-debuginfo-2.4.1-1.el8.ppc64le.rpm

s390x:
libseccomp-debuginfo-2.4.1-1.el8.s390x.rpm
libseccomp-debugsource-2.4.1-1.el8.s390x.rpm
libseccomp-devel-2.4.1-1.el8.s390x.rpm
libseccomp-devel-debuginfo-2.4.1-1.el8.s390x.rpm

x86_64:
libseccomp-debuginfo-2.4.1-1.el8.i686.rpm
libseccomp-debuginfo-2.4.1-1.el8.x86_64.rpm
libseccomp-debugsource-2.4.1-1.el8.i686.rpm
libseccomp-debugsource-2.4.1-1.el8.x86_64.rpm
libseccomp-devel-2.4.1-1.el8.i686.rpm
libseccomp-devel-2.4.1-1.el8.x86_64.rpm
libseccomp-devel-debuginfo-2.4.1-1.el8.i686.rpm
libseccomp-devel-debuginfo-2.4.1-1.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-2019-9893
https://access.redhat.com/security/updates/classification/#moderate
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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