Vulnerability DatabaseCVE-2021-46143
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CVE-2021-46143
Published:January 06, 2022
Updated:May 17, 2026
In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.
Related Resources (12)
https://www.debian.org/security/2022/dsa-5073
https://security.alpinelinux.org/vuln/CVE-2021-46143
https://security.gentoo.org/glsa/202209-24
https://github.com/libexpat/libexpat/pull/538
https://www.tenable.com/security/tns-2022-05
https://security-tracker.debian.org/tracker/CVE-2021-46143
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-46143
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
https://access.redhat.com/security/cve/CVE-2021-46143
https://github.com/libexpat/libexpat/issues/532
http://www.openwall.com/lists/oss-security/2022/01/17/3
https://security.netapp.com/advisory/ntap-20220121-0006/
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CVSS v4
Base Score:
9.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Complexity
HIGH
Attack Vector
NETWORK
Availability
HIGH
Confidentiality
HIGH
Integrity
HIGH
Privileges Required
NONE
Scope
UNCHANGED
User Interaction
NONE
Weakness Type (CWE)
Integer Overflow or Wraparound
CWE-190
EPSS
Base Score:
4.08