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AUSCERT External Security Bulletin Redistribution
ESB-2020.3397
libxslt security update
30 September 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: libxslt
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Red Hat Enterprise Linux WS/Desktop 7
Impact/Access: Denial of Service -- Remote with User Interaction
Access Confidential Data -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2019-18197 CVE-2019-11068
Reference: ESB-2020.2960
ESB-2019.2395
ESB-2019.1309
ESB-2019.1207
Original Bulletin:
https://access.redhat.com/errata/RHSA-2020:4005
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Red Hat Security Advisory
Synopsis: Moderate: libxslt security update
Advisory ID: RHSA-2020:4005-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4005
Issue date: 2020-09-29
CVE Names: CVE-2019-11068 CVE-2019-18197
=====================================================================
1. Summary:
An update for libxslt is now available for Red Hat Enterprise Linux 7.
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 Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
3. Description:
libxslt is a library for transforming XML files into other textual formats
(including HTML, plain text, and other XML representations of the
underlying data) using the standard XSLT stylesheet transformation
mechanism.
Security Fix(es):
* libxslt: xsltCheckRead and xsltCheckWrite routines security bypass by
crafted URL (CVE-2019-11068)
* libxslt: use after free in xsltCopyText in transform.c could lead to
information disclosure (CVE-2019-18197)
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 7.9 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/):
1709697 - CVE-2019-11068 libxslt: xsltCheckRead and xsltCheckWrite routines security bypass by crafted URL
1770768 - CVE-2019-18197 libxslt: use after free in xsltCopyText in transform.c could lead to information disclosure
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
libxslt-1.1.28-6.el7.src.rpm
x86_64:
libxslt-1.1.28-6.el7.i686.rpm
libxslt-1.1.28-6.el7.x86_64.rpm
libxslt-debuginfo-1.1.28-6.el7.i686.rpm
libxslt-debuginfo-1.1.28-6.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
libxslt-debuginfo-1.1.28-6.el7.i686.rpm
libxslt-debuginfo-1.1.28-6.el7.x86_64.rpm
libxslt-devel-1.1.28-6.el7.i686.rpm
libxslt-devel-1.1.28-6.el7.x86_64.rpm
libxslt-python-1.1.28-6.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
libxslt-1.1.28-6.el7.src.rpm
x86_64:
libxslt-1.1.28-6.el7.i686.rpm
libxslt-1.1.28-6.el7.x86_64.rpm
libxslt-debuginfo-1.1.28-6.el7.i686.rpm
libxslt-debuginfo-1.1.28-6.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64:
libxslt-debuginfo-1.1.28-6.el7.i686.rpm
libxslt-debuginfo-1.1.28-6.el7.x86_64.rpm
libxslt-devel-1.1.28-6.el7.i686.rpm
libxslt-devel-1.1.28-6.el7.x86_64.rpm
libxslt-python-1.1.28-6.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
libxslt-1.1.28-6.el7.src.rpm
ppc64:
libxslt-1.1.28-6.el7.ppc.rpm
libxslt-1.1.28-6.el7.ppc64.rpm
libxslt-debuginfo-1.1.28-6.el7.ppc.rpm
libxslt-debuginfo-1.1.28-6.el7.ppc64.rpm
libxslt-devel-1.1.28-6.el7.ppc.rpm
libxslt-devel-1.1.28-6.el7.ppc64.rpm
ppc64le:
libxslt-1.1.28-6.el7.ppc64le.rpm
libxslt-debuginfo-1.1.28-6.el7.ppc64le.rpm
libxslt-devel-1.1.28-6.el7.ppc64le.rpm
s390x:
libxslt-1.1.28-6.el7.s390.rpm
libxslt-1.1.28-6.el7.s390x.rpm
libxslt-debuginfo-1.1.28-6.el7.s390.rpm
libxslt-debuginfo-1.1.28-6.el7.s390x.rpm
libxslt-devel-1.1.28-6.el7.s390.rpm
libxslt-devel-1.1.28-6.el7.s390x.rpm
x86_64:
libxslt-1.1.28-6.el7.i686.rpm
libxslt-1.1.28-6.el7.x86_64.rpm
libxslt-debuginfo-1.1.28-6.el7.i686.rpm
libxslt-debuginfo-1.1.28-6.el7.x86_64.rpm
libxslt-devel-1.1.28-6.el7.i686.rpm
libxslt-devel-1.1.28-6.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
libxslt-debuginfo-1.1.28-6.el7.ppc64.rpm
libxslt-python-1.1.28-6.el7.ppc64.rpm
ppc64le:
libxslt-debuginfo-1.1.28-6.el7.ppc64le.rpm
libxslt-python-1.1.28-6.el7.ppc64le.rpm
s390x:
libxslt-debuginfo-1.1.28-6.el7.s390x.rpm
libxslt-python-1.1.28-6.el7.s390x.rpm
x86_64:
libxslt-debuginfo-1.1.28-6.el7.x86_64.rpm
libxslt-python-1.1.28-6.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
libxslt-1.1.28-6.el7.src.rpm
x86_64:
libxslt-1.1.28-6.el7.i686.rpm
libxslt-1.1.28-6.el7.x86_64.rpm
libxslt-debuginfo-1.1.28-6.el7.i686.rpm
libxslt-debuginfo-1.1.28-6.el7.x86_64.rpm
libxslt-devel-1.1.28-6.el7.i686.rpm
libxslt-devel-1.1.28-6.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
libxslt-debuginfo-1.1.28-6.el7.x86_64.rpm
libxslt-python-1.1.28-6.el7.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-2019-11068
https://access.redhat.com/security/cve/CVE-2019-18197
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.9_release_notes/index
8. Contact:
The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2020 Red Hat, Inc.
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