Heap Buffer Overflow in OTFCC

texlive-bin Updated 02 Oct 2025

Summary

22/09/2022

Disclosed on

N/A

Severity

No i

Fix available

Medium

Severity

6.5

CVSS Score

CVE-2022-35039: OTFCC commit 617837b was discovered to contain a heap buffer overflow via /release-x64/otfccdump+0x6e20a0. Affects texlive-bin versions 2022.20220321.62855-5.1 – 2025.20250727.75242+ds-5~hurd.1. No fix is published. How to fix ↓

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Background

OTFCC is an open-source font converter and editor. It is used for manipulating OpenType and TrueType fonts. The package texlive-bin, specifically in versions for Debian 12 and Debian 13, includes the OTFCC tool. This tool is vulnerable to a heap buffer overflow, which can be exploited to execute arbitrary code or cause a denial of service.

Vulnerability Detail

The vulnerability, identified as CVE-2022-35039, originates from a commit (617837b) in the OTFCC codebase. The issue arises due to a heap buffer overflow in the 'otfccdump' component. An attacker can trigger this vulnerability by providing a specially crafted font file to the 'otfccdump' utility. Successful exploitation can lead to arbitrary code execution or a crash of the application.

How To Fix

No fixed version is published for this vulnerability.

To fix this vulnerability, it is recommended to update the texlive-bin package to a version that includes a patched version of OTFCC. The maintainers of the Debian distribution should release an updated package that addresses this issue. Users are advised to update their systems as soon as the patched package becomes available.

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Workaround

Currently, no known workarounds exist for this vulnerability. It is crucial to apply the patch or update the package as soon as it becomes available.

Conclusion

In conclusion, the OTFCC tool included in the texlive-bin package for Debian 12 and Debian 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 crucial to update the package as soon as a patched version becomes available. For further support on vulnerability remediation, please contact DevNack.com.

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