RHSA-2022:0951HighCVSS 9.8

Red Hat Security Advisory: expat security update

Published
March 16, 2022
Last Modified
September 21, 2026

🔗 CVE IDs covered (12)

CVE-2021-45960 →CVE-2022-22826 →CVE-2022-23852 →CVE-2022-25235 →CVE-2022-25236 →CVE-2022-25315 →CVE-2021-46143 →CVE-2022-22822 →CVE-2022-22823 →CVE-2022-22824 →CVE-2022-22825 →CVE-2022-22827 →

📋 Description

CVE-2021-45960 — expat: Large number of prefixed XML attributes on a single tag can crash libexpat CVE-2021-46143 — expat: Integer overflow in doProlog in xmlparse.c CVE-2022-22822 — expat: Integer overflow in addBinding in xmlparse.c CVE-2022-22823 — expat: Expat: Denial of Service vulnerability in XML parsing CVE-2022-22824 — expat: Expat: Denial of service and memory issues due to integer overflow CVE-2022-22825 — expat: Integer overflow in lookup in xmlparse.c CVE-2022-22826 — expat: Integer overflow in nextScaffoldPart in xmlparse.c CVE-2022-22827 — expat: Integer overflow in storeAtts in xmlparse.c CVE-2022-23852 — expat: Integer overflow in function XML_GetBuffer CVE-2022-25235 — expat: Malformed 2- and 3-byte UTF-8 sequences can lead to arbitrary code execution CVE-2022-25236 — expat: Namespace-separator characters in "xmlns[:prefix]" attribute values can lead to arbitrary code execution CVE-2022-25315 — expat: Integer overflow in storeRawNames()

🎯 Affected products22

  • Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-0:2.2.5-4.el8_5.3.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-0:2.2.5-4.el8_5.3.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-0:2.2.5-4.el8_5.3.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-0:2.2.5-4.el8_5.3.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-0:2.2.5-4.el8_5.3.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-0:2.2.5-4.el8_5.3.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-debuginfo-0:2.2.5-4.el8_5.3.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-debuginfo-0:2.2.5-4.el8_5.3.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-debuginfo-0:2.2.5-4.el8_5.3.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-debuginfo-0:2.2.5-4.el8_5.3.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-debuginfo-0:2.2.5-4.el8_5.3.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-debugsource-0:2.2.5-4.el8_5.3.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-debugsource-0:2.2.5-4.el8_5.3.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-debugsource-0:2.2.5-4.el8_5.3.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-debugsource-0:2.2.5-4.el8_5.3.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-debugsource-0:2.2.5-4.el8_5.3.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-devel-0:2.2.5-4.el8_5.3.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-devel-0:2.2.5-4.el8_5.3.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-devel-0:2.2.5-4.el8_5.3.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-devel-0:2.2.5-4.el8_5.3.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • expat-devel-0:2.2.5-4.el8_5.3.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)

✅ Remediation

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. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Workaround: There is no known mitigation other than restricting applications using the expat library from processing untrusted XML content. Please update the affected packages as soon as possible.

🔗 References (15)