CVE-2020-27818

2020-12-0801:15:12

Debian Security Bug Tracker

security-tracker.debian.org

pngcheck-2.4.0

check_chunk_name()

denial of service

unix

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

3.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

0.002

Percentile

64.8%

JSON

A flaw was found in the check_chunk_name() function of pngcheck-2.4.0. An attacker able to pass a malicious file to be processed by pngcheck could cause a temporary denial of service, posing a low risk to application availability.

OSVersionArchitecturePackageVersionFilename
Debian12allpngcheck< 2.3.0-13pngcheck_2.3.0-13_all.deb
Debian11allpngcheck< 2.3.0-13pngcheck_2.3.0-13_all.deb
Debian999allpngcheck< 2.3.0-13pngcheck_2.3.0-13_all.deb
Debian13allpngcheck< 2.3.0-13pngcheck_2.3.0-13_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	pngcheck	< 2.3.0-13	pngcheck_2.3.0-13_all.deb
Debian	11	all	pngcheck	< 2.3.0-13	pngcheck_2.3.0-13_all.deb
Debian	999	all	pngcheck	< 2.3.0-13	pngcheck_2.3.0-13_all.deb
Debian	13	all	pngcheck	< 2.3.0-13	pngcheck_2.3.0-13_all.deb