CVE-2022-23852

high-risk

Published 2022-01-24

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

Do I need to act?

1.7% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Fix available

Upgrade to: 81b89678e200820271b72cacdd45fb5868855765

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Libexpat

Clustered Data Ontap

Oncommand Workflow Automation

Nessus

Communications Metasolv Solution

Debian Linux

Sinema Remote Connect Server

Debian Oracle Siemens Netapp Libexpat Project Tenable

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

Issue Tracking https://github.com/libexpat/libexpat/pull/550

Mailing List https://lists.debian.org/debian-lts-announce/2022/03/msg00007.html

Third Party Advisory https://security.gentoo.org/glsa/202209-24

Third Party Advisory https://security.netapp.com/advisory/ntap-20220217-0001/

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

Third Party Advisory https://www.oracle.com/security-alerts/cpuapr2022.html

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

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

Issue Tracking https://github.com/libexpat/libexpat/pull/550

Mailing List https://lists.debian.org/debian-lts-announce/2022/03/msg00007.html

Third Party Advisory https://security.gentoo.org/glsa/202209-24

Third Party Advisory https://security.netapp.com/advisory/ntap-20220217-0001/

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

Third Party Advisory https://www.oracle.com/security-alerts/cpuapr2022.html

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

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high-risk

Severity 32/34 · Critical

Exploitability 4/34 · Minimal

Exposure 14/34 · Moderate