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Vulnerability Intelligence

CVE-2022-22823

CRITICAL9.8

build_model in xmlparse

Published Jan 8, 2022

Modified 8 months ago

No fix available

Details

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

References

WEBhttp://www.openwall.com/lists/oss-security/2022/01/17/3 WEBhttps://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf WEBhttps://github.com/libexpat/libexpat/pull/539 ADVISORYhttps://security.gentoo.org/glsa/202209-24 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2022-22823 ADVISORYhttps://www.debian.org/security/2022/dsa-5073 WEBhttps://www.tenable.com/security/tns-2022-05

CVSS Analysis

CVSS v3.1

9.8

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

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

Ecosystems

Timeline

PublishedJan 8, 2022

ModifiedMay 5, 2025

CVE-2022-22823 | Mondoo Vulnerability Intelligence