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-2022-35042: OTFCC commit 617837b was discovered to contain a heap buffer overflow via /release-x64/otfccdump+0x4adb11. Affects texlive-bin versions < 3a9d42668f45387fa566845be5a3e61579823d35. No fix is published. How to fix ↓

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Background

The texlive-bin package is a part of the Debian ecosystem and is used for typesetting documents. It provides a collection of programs for handling TeX and LaTeX files. One of the programs included in this package is OTFCC, which is used for manipulating OpenType fonts. OTFCC allows users to convert, merge, and extract information from OpenType fonts. However, a vulnerability has been discovered in the OTFCC commit 617837b, which can lead to a heap buffer overflow.

Vulnerability Detail

The vulnerability (CVE-2022-35042) in OTFCC commit 617837b allows an attacker to trigger a heap buffer overflow. This can be exploited by providing a specially crafted input to the otfccdump program. If successful, the attacker can overwrite adjacent memory locations, potentially leading to arbitrary code execution or a crash. The impact of this vulnerability can vary depending on the context in which the OTFCC program is used. It is important to note that this vulnerability has been assigned a CVSSv3 score of 6.5, indicating a medium severity.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

As a workaround, users can avoid using the otfccdump program or restrict its usage to trusted input only. By limiting the exposure to potentially malicious input, the risk of exploitation can be reduced. However, this workaround may not be feasible in all scenarios, and it is strongly advised to apply the official fix as soon as it becomes available.

Conclusion

In conclusion, the texlive-bin package, specifically the OTFCC program, is vulnerable to a heap buffer overflow. This vulnerability can be exploited by providing malicious input to the otfccdump program, potentially leading to arbitrary code execution or a crash. It is recommended to update the texlive-bin package to the latest version as soon as a fix becomes available. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for texlive-bin →