RedHat: RHSA-2022-0951:01 Important: expat security update
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.
Summary
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.
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/
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.
Topic
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
