CVE-2023-45139

fonttools XML External Entity Injection (XXE) Vulnerability

CVSS 7.5 HIGHEPSS 1.2%CWE-611

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 1.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

10 Jan 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

fontTools is a library for manipulating fonts, written in Python. The subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. This vulnerability has been patched in version 4.43.0.

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

Affected products

fonttools · fonttools

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References

https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c https://github.com/fonttools/fonttools/releases/tag/4.43.0 https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VY63B4SGY4QOQGUXMECRGD6K3YT3GJ75/http://www.openwall.com/lists/oss-security/2024/03/08/2 http://www.openwall.com/lists/oss-security/2024/03/09/1