CVE-2023-45139

Description

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.

References

https://www.itworldcanada.com/article/breaking-bad-in-cybersecurity-cybersecurity-today-for-monday-march-11-2024/560180

https://www.theregister.com/2024/03/08/canva_font_security/?&web_view=true

https://www.theregister.com/2024/03/08/canva_font_security/

https://lists.fedoraproject.org/archives/list/[email protected]/message/VY63B4SGY4QOQGUXMECRGD6K3YT3GJ75/

https://github.com/fonttools/fonttools/releases/tag/4.43.0

https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c

http://www.openwall.com/lists/oss-security/2024/03/09/1

http://www.openwall.com/lists/oss-security/2024/03/08/2

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3