CVE-2019-20421 Information

Description

In Jp2Image::readMetadata() in jp2image.cpp in Exiv2 0.27.2 an input file can result in an infinite loop and hang with high CPU consumption. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted file.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://github.com/Exiv2/exiv2/commit/a82098f4f90cd86297131b5663c3dec6a34470e8 https://github.com/Exiv2/exiv2/issues/1011 https://usn.ubuntu.com/4270-1/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5