CVE-2021-46143 Information

Description

In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3 an integer overflow exists for m_groupSize.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

https://github.com/libexpat/libexpat/issues/532 https://github.com/libexpat/libexpat/pull/538 http://www.openwall.com/lists/oss-security/2022/01/17/3 https://security.netapp.com/advisory/ntap-20220121-0006/ https://www.tenable.com/security/tns-2022-05 https://www.debian.org/security/2022/dsa-5073

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8