CVE-2017-18120 Information

Description

A double-free bug in the read_gif function in gifread.c in gifsicle 1.90 allows a remote attacker to cause a denial-of-service attack or unspecified other impact via a maliciously crafted file because last_name is mishandled a different vulnerability than CVE-2017-1000421.

CVSS Vector

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

Reference

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878739 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881120 https://github.com/kohler/gifsicle/commit/118a46090c50829dc543179019e6140e1235f909 https://github.com/kohler/gifsicle/issues/117

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