CVE-2017-16938

HIGH

OptiPNG 0.7.6 - Buffer Overflow in LZWReadByte Function

Title source: llm

Description

A global buffer overflow in OptiPNG 0.7.6 allows remote attackers to cause a denial-of-service attack or other unspecified impact with a maliciously crafted GIF format file, related to an uncontrolled loop in the LZWReadByte function of the gifread.c file.

References (4)

Core 4

Core References

Mailing List mailing-list x_refsource_mlist

https://lists.debian.org/debian-lts-announce/2017/11/msg00042.html

Third Party Advisory vendor-advisory x_refsource_debian

https://www.debian.org/security/2017/dsa-4058

Patch, Third Party Advisory x_refsource_misc

https://sourceforge.net/p/optipng/bugs/69/

Third Party Advisory vendor-advisory x_refsource_gentoo

https://security.gentoo.org/glsa/201801-02

Scores

CVSS v3 7.8

EPSS 0.0179

EPSS Percentile 75.7%

Attack Vector LOCAL

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE

CWE-119

Status published

Products (1)

optipng_project/optipng 0.7.6

Published Nov 24, 2017

Tracked Since Feb 18, 2026