CVE-2017-16938: optipng_project optipng

Vulnerability summary

CVE-2017-16938 is a high (CVSS 7.8) vulnerability in optipng_project optipng. EPSS estimates a 1.86% chance of exploitation in the next 30 days, higher than 79.1% of scored vulnerabilities.

Timeline

1. 24-11-2017
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

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.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.