CVE-2018-25032

high-risk

Published 2022-03-25

zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches.

Do I need to act?

0.09% chance of exploitation

EPSS score — low 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 7.5/10 High

NETWORK / LOW complexity

Nokogiri

Python

Zlib

Debian Linux

Fedora

Mac Os X

Debian Apple Siemens Zlib Python Mariadb Fedoraproject Netapp Nokogiri Azul Goto

Mailing List http://seclists.org/fulldisclosure/2022/May/33

Mailing List http://seclists.org/fulldisclosure/2022/May/35

Mailing List http://seclists.org/fulldisclosure/2022/May/38

Mailing List http://www.openwall.com/lists/oss-security/2022/03/25/2

Exploit http://www.openwall.com/lists/oss-security/2022/03/26/1

Third Party Advisory https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf

Patch https://github.com/madler/zlib/commit/5c44459c3b28a9bd3283aaceab7c615f8020c531

Patch https://github.com/madler/zlib/compare/v1.2.11...v1.2.12

Issue Tracking https://github.com/madler/zlib/issues/605

Mailing List https://lists.debian.org/debian-lts-announce/2022/04/msg00000.html

Mailing List https://lists.debian.org/debian-lts-announce/2022/05/msg00008.html

Mailing List https://lists.debian.org/debian-lts-announce/2022/09/msg00023.html

Third Party Advisory https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Third Party Advisory https://security.gentoo.org/glsa/202210-42

Third Party Advisory https://security.netapp.com/advisory/ntap-20220526-0009/

and 38 more references

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high-risk

Severity 26/34 · High

Exploitability 0/34 · Minimal

Exposure 26/34 · High