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HistoryMay 29, 2022 - 2:10 p.m.

[SECURITY] [DLA 3032-1] pngcheck security update

2022-05-2914:10:47
lists.debian.org
9

4.3 Medium

CVSS2

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

3.3 Low

CVSS3

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

3.9 Low

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

64.8%


Debian LTS Advisory DLA-3032-1 [email protected]
https://www.debian.org/lts/security/ Markus Koschany
May 29, 2022 https://wiki.debian.org/LTS

Package : pngcheck
Version : 2.3.0-7+deb9u1
CVE ID : CVE-2020-27818
Debian Bug : 976350

A flaw was found in the check_chunk_name() function of pngcheck, a tool toΒ 
verify the integrity of PNG, JNG and MNG files. This flaw allows an attacker
who can pass a malicious file to be processed by pngcheck to cause a temporary
denial of service.

For Debian 9 stretch, this problem has been fixed in version
2.3.0-7+deb9u1.

We recommend that you upgrade your pngcheck packages.

For the detailed security status of pngcheck please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/pngcheck

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
Attachment:
signature.asc
Description: This is a digitally signed message part

4.3 Medium

CVSS2

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

3.3 Low

CVSS3

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

3.9 Low

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

64.8%