CVE-2022-25235

CRITICAL

Expat <2.4.5 - Info Disclosure

Title source: llm

Description

xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context.

Exploits (1)

nomisec STUB

by Satheesh575555 · poc

https://github.com/Satheesh575555/external_expat_AOSP10_r33_CVE-2022-25235

View Code ZIP pw:eip

References (10)

[Patch, Third Party Advisory] https://github.com/libexpat/libexpat/pull/562

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2022/02/19/1

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

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UFRBA3UQVIQKXTBUQXDWQOVWNBKLERU/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y27XO3JMKAOMQZVPS3B4MJGEAHCZF5OM/

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2022/03/msg00007.html

[Patch, Third Party Advisory] https://www.oracle.com/security-alerts/cpuapr2022.html

[Third Party Advisory] https://security.netapp.com/advisory/ntap-20220303-0008/

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

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

Scores

CVSS v3 9.8

EPSS 0.1332

EPSS Percentile 94.2%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-116

Status published

Products (9)

debian/debian_linux 10.0

debian/debian_linux 11.0

fedoraproject/fedora 34

fedoraproject/fedora 35

libexpat_project/libexpat < 2.4.5

oracle/http_server 12.2.1.3.0

oracle/http_server 12.2.1.4.0

oracle/zfs_storage_appliance_kit 8.8

siemens/sinema_remote_connect_server < 3.1

Published Feb 16, 2022

Tracked Since Feb 18, 2026