CVE-2022-22823

critical

Description

build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.

References

https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf

https://github.com/libexpat/libexpat/pull/539

https://security.gentoo.org/glsa/202209-24

https://www.debian.org/security/2022/dsa-5073

https://www.tenable.com/security/tns-2022-05

http://www.openwall.com/lists/oss-security/2022/01/17/3

Details

Published: 2022-01-10

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical