Heap Buffer Overflow in OTFCC

texlive-bin Updated 02 Oct 2025

Summary

14/10/2022

Disclosed on

N/A

Severity

No i

Fix available

Medium

Severity

6.5

CVSS Score

CVE-2022-35056: OTFCC commit 617837b was discovered to contain a heap buffer overflow via /release-x64/otfccdump+0x6b0478. Affects texlive-bin versions < 3a9d42668f45387fa566845be5a3e61579823d35. No fix is published. How to fix ↓

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Background

OTFCC is an open-source font tool collection that includes otfccdump, a utility for extracting font data. The texlive-bin package in Debian versions 12 and 13 includes OTFCC. The package is responsible for providing the TeX Live distribution of the LaTeX typesetting system. OTFCC is used to manipulate OpenType font files. However, a vulnerability has been discovered in commit 617837b of OTFCC, which introduces a heap buffer overflow.

Vulnerability Detail

The heap buffer overflow vulnerability in OTFCC can be exploited via the otfccdump utility. An attacker can craft a malicious font file that, when processed by otfccdump, triggers the overflow. This can lead to arbitrary code execution or a denial of service condition. The vulnerability has a CVSS v3 score of 6.5, indicating a medium severity level.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

No specific workaround has been provided for this vulnerability.

Conclusion

In conclusion, the OTFCC package in the texlive-bin package in Debian versions 12 and 13 is vulnerable to a heap buffer overflow. This vulnerability can be exploited to execute arbitrary code or cause a denial of service. It is recommended to update the package to a patched version as soon as possible. For further support on vulnerability remediation, contact DevNack.com.

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