expat security update

CentOS Errata and Security Advisory CESA-2022:1069

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.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2022-March/086267.html

Affected packages:
expat
expat-devel
expat-static

Upstream details at:
https://access.redhat.com/errata/RHSA-2022:1069