Alerts This Week
Warning Icon 1 764
Alerts This Week
Warning Icon 1 764

Red Hat Enterprise Linux 8 RHSA-2022-0951 Important: Expat Security Update

red hat
Calendar Grey March 16, 2022
Dist Redhat Esm H88
The latest expat patch for Red Hat Enterprise Linux 8 tackles critical vulnerabilities that could allow arbitrary command execution, enhancing overall system protection.
An update for expat is now available for Red Hat Enterprise Linux 8

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

After installing the updated packages, applications using the Expat library must be restarted for the update to take effect.

Summary

Expat is a C library for parsing XML documents.
Security Fix(es):
* expat: Malformed 2- and 3-byte UTF-8 sequences can lead to arbitrary code execution (CVE-2022-25235)
* expat: Namespace-separator characters in "xmlns[:prefix]" attribute values can lead to arbitrary code execution (CVE-2022-25236)
* expat: Integer overflow in storeRawNames() (CVE-2022-25315)
* expat: Large number of prefixed XML attributes on a single tag can crash libexpat (CVE-2021-45960)
* expat: Integer overflow in doProlog in xmlparse.c (CVE-2021-46143)
* expat: Integer overflow in addBinding in xmlparse.c (CVE-2022-22822)
* expat: Integer overflow in build_model in xmlparse.c (CVE-2022-22823)
* expat: Integer overflow in defineAttribute in xmlparse.c (CVE-2022-22824)
* expat: Integer overflow in lookup in xmlparse.c (CVE-2022-22825)
* expat: Integer overflow in nextScaffoldPart in xmlparse.c (CVE-2022-22826)
* expat: Integer overflow in storeAtts in xmlparse.c (CVE-2022-22827)
* expat: Integer overflow in function XML_GetBuffer (CVE-2022-23852)
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.

Topics%20covered

Topics Covered

security advisory security update code execution arbitrary code execution Red Hat Enterprise Linux important expat

References

https://access.redhat.com/security/cve/CVE-2021-45960 https://access.redhat.com/security/cve/CVE-2021-46143 https://access.redhat.com/security/cve/CVE-2022-22822 https://access.redhat.com/security/cve/CVE-2022-22823 https://access.redhat.com/security/cve/CVE-2022-22824 https://access.redhat.com/security/cve/CVE-2022-22825 https://access.redhat.com/security/cve/CVE-2022-22826 https://access.redhat.com/security/cve/CVE-2022-22827 https://access.redhat.com/security/cve/CVE-2022-23852 https://access.redhat.com/security/cve/CVE-2022-25235 https://access.redhat.com/security/cve/CVE-2022-25236 https://access.redhat.com/security/cve/CVE-2022-25315 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: expat-2.2.5-4.el8_5.3.src.rpm
aarch64: expat-2.2.5-4.el8_5.3.aarch64.rpm expat-debuginfo-2.2.5-4.el8_5.3.aarch64.rpm expat-debugsource-2.2.5-4.el8_5.3.aarch64.rpm expat-devel-2.2.5-4.el8_5.3.aarch64.rpm
ppc64le: expat-2.2.5-4.el8_5.3.ppc64le.rpm expat-debuginfo-2.2.5-4.el8_5.3.ppc64le.rpm expat-debugsource-2.2.5-4.el8_5.3.ppc64le.rpm expat-devel-2.2.5-4.el8_5.3.ppc64le.rpm
s390x: expat-2.2.5-4.el8_5.3.s390x.rpm expat-debuginfo-2.2.5-4.el8_5.3.s390x.rpm expat-debugsource-2.2.5-4.el8_5.3.s390x.rpm expat-devel-2.2.5-4.el8_5.3.s390x.rpm
x86_64: expat-2.2.5-4.el8_5.3.i686.rpm expat-2.2.5-4.el8_5.3.x86_64.rpm expat-debuginfo-2.2.5-4.el8_5.3.i686.rpm expat-debuginfo-2.2.5-4.el8_5.3.x86_64.rpm expat-debugsource-2.2.5-4.el8_5.3.i686.rpm expat-debugsource-2.2.5-4.el8_5.3.x86_64.rpm expat-devel-2.2.5-4.el8_5.3.i686.rpm expat-devel-2.2.5-4.el8_5.3.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/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:0951-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0951
Issue date: 2022-03-16

Topic

An update for expat is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security update code execution arbitrary code execution Red Hat Enterprise Linux important expat

Relevant Releases Architectures

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

Bugs Fixed

2044451 - CVE-2021-45960 expat: Large number of prefixed XML attributes on a single tag can crash libexpat

2044455 - CVE-2021-46143 expat: Integer overflow in doProlog in xmlparse.c

2044457 - CVE-2022-22822 expat: Integer overflow in addBinding in xmlparse.c

2044464 - CVE-2022-22823 expat: Integer overflow in build_model in xmlparse.c

2044467 - CVE-2022-22824 expat: Integer overflow in defineAttribute in xmlparse.c

2044479 - CVE-2022-22825 expat: Integer overflow in lookup in xmlparse.c

2044484 - CVE-2022-22826 expat: Integer overflow in nextScaffoldPart in xmlparse.c

2044488 - CVE-2022-22827 expat: Integer overflow in storeAtts in xmlparse.c

2044613 - CVE-2022-23852 expat: Integer overflow in function XML_GetBuffer

2056363 - CVE-2022-25315 expat: Integer overflow in storeRawNames()

2056366 - CVE-2022-25235 expat: Malformed 2- and 3-byte UTF-8 sequences can lead to arbitrary code execution

2056370 - CVE-2022-25236 expat: Namespace-separator characters in "xmlns[:prefix]" attribute values can lead to arbitrary code execution

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here