Vulnerability DatabaseCVE-2021-46143
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CVE-2021-46143
January 06, 2022
In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.
Related Resources (12)
https://github.com/libexpat/libexpat/pull/538
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
https://access.redhat.com/security/cve/CVE-2021-46143
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-46143
https://security.gentoo.org/glsa/202209-24
https://security.alpinelinux.org/vuln/CVE-2021-46143
https://security-tracker.debian.org/tracker/CVE-2021-46143
http://www.openwall.com/lists/oss-security/2022/01/17/3
https://www.tenable.com/security/tns-2022-05
https://www.debian.org/security/2022/dsa-5073
https://security.netapp.com/advisory/ntap-20220121-0006/
https://github.com/libexpat/libexpat/issues/532
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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
CVSS v2
Base Score:
6.8
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Weakness Type (CWE)
Integer Overflow or Wraparound
CWE-190
EPSS
Base Score:
4.08