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Sigurnosni nedostatak programskog paketa mingw-expat

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Red Hat Security Advisory

Synopsis: Moderate: mingw-expat security update
Advisory ID: RHSA-2020:4846-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4846
Issue date: 2020-11-03
CVE Names: CVE-2018-20843
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1. Summary:

An update for mingw-expat 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) – noarch

3. Description:

Expat is a C library for parsing XML documents. The mingw-expat packages
provide a port of the Expat library for MinGW.

Security Fix(es):

* expat: large number of colons in input makes parser consume high amount
of resources, leading to DoS (CVE-2018-20843)

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 8.3 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/):

1723723 – CVE-2018-20843 expat: large number of colons in input makes parser consume high amount of resources, leading to DoS

6. Package List:

Red Hat CodeReady Linux Builder (v. 8):

Source:
mingw-expat-2.2.4-5.el8.src.rpm

noarch:
mingw32-expat-2.2.4-5.el8.noarch.rpm
mingw32-expat-debuginfo-2.2.4-5.el8.noarch.rpm
mingw64-expat-2.2.4-5.el8.noarch.rpm
mingw64-expat-debuginfo-2.2.4-5.el8.noarch.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-2018-20843
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_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 2020 Red Hat, Inc.
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