CVE-2022-25315

high-risk

Published 2022-02-18

In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames.

Do I need to act?

7.7% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Libexpat

Debian Linux

Fedora

Http Server

Zfs Storage Appliance Kit

Sinema Remote Connect Server

Debian Oracle Siemens Fedoraproject Libexpat Project

Mailing List http://www.openwall.com/lists/oss-security/2022/02/19/1

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

Exploit https://github.com/libexpat/libexpat/pull/559

Third Party Advisory 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-20220303-0008/

Third Party Advisory https://www.debian.org/security/2022/dsa-5085

Patch https://www.oracle.com/security-alerts/cpuapr2022.html

Mailing List http://www.openwall.com/lists/oss-security/2022/02/19/1

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

Exploit https://github.com/libexpat/libexpat/pull/559

Third Party Advisory 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-20220303-0008/

Third Party Advisory https://www.debian.org/security/2022/dsa-5085

Patch https://www.oracle.com/security-alerts/cpuapr2022.html

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high-risk

Severity 32/34 · Critical

Exploitability 10/34 · Low

Exposure 15/34 · Moderate