CVE-2022-25235 — Improper Encoding or Escaping of Output in Project Libexpat

CWE-116 — Improper Encoding or Escaping of OutputCWE-838 — Inappropriate Encoding for Output Context10 documents8 sources
Severity
9.8CRITICALNVD
EPSS
13.3%
top 5.81%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
Libexpat Project LibexpatSiemens Sinema Remote Connect ServerDebian Linux+3 more
Timeline
PublishedFeb 16
Latest updateJul 19

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages4 packages

▶NVDoracle/http_server12.2.1.3.0, 12.2.1.4.0+1

Also affects: Debian Linux 10.0, 11.0, Fedora 34, 35

Patches

Patch: github.com ↗Patch: www.oracle.com ↗Patch: github.com ↗

🔴Vulnerability Details

4
OSV
libxmltok vulnerabilities↗2022-07-19
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GHSA
GHSA-8mw4-grgw-m3fp: xmltok_impl↗2022-02-17
▶
OSV
CVE-2022-25235: xmltok_impl↗2022-02-16
▶
CVEList
CVE-2022-25235: xmltok_impl↗2022-02-16
▶

📋Vendor Advisories

5
Ubuntu
xmltok library vulnerabilities↗2022-07-19
▶
Ubuntu
Expat vulnerabilities↗2022-02-21
▶
Red Hat
expat: Malformed 2- and 3-byte UTF-8 sequences can lead to arbitrary code execution↗2022-02-19
▶
Microsoft
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.↗2022-02-08
▶
Debian
CVE-2022-25235: expat - xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of e...↗2022
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