CVE-2017-16938 Information

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.

CVSS Vector

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

Reference

https://lists.debian.org/debian-lts-announce/2017/11/msg00042.html https://security.gentoo.org/glsa/201801-02 https://sourceforge.net/p/optipng/bugs/69/ https://www.debian.org/security/2017/dsa-4058

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8