RHSA-2022:7811 — Security Advisory

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 Important. 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.

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

The following packages have been upgraded to a later upstream version: mingw-expat (2.4.8). (BZ#2057023, BZ#2057037, BZ#2057127)

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: Stack exhaustion in doctype parsing (CVE-2022-25313)

• expat: Integer overflow in copyString() (CVE-2022-25314)

• expat: Integer overflow in the doProlog function (CVE-2022-23990)

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 8.7 Release Notes linked from the References section.