CVE-2022-23852 Information

Description

Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer for configurations with a nonzero XML_CONTEXT_BYTES.

CVSS Vector

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

Reference

https://github.com/libexpat/libexpat/pull/550 https://www.tenable.com/security/tns-2022-05 https://www.debian.org/security/2022/dsa-5073 https://security.netapp.com/advisory/ntap-20220217-0001/ https://lists.debian.org/debian-lts-announce/2022/03/msg00007.html https://www.oracle.com/security-alerts/cpuapr2022.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8