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AUSCERT External Security Bulletin Redistribution
ESB-2023.3552
USN-6182-1: pngcheck vulnerabilities
22 June 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: pngcheck
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2020-35511 CVE-2020-27818
Original Bulletin:
https://ubuntu.com/security/notices/USN-6182-1
Comment: CVSS (Max): 7.8 CVE-2020-35511 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
CVSS Source: NVD
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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USN-6182-1: pngcheck vulnerabilities
21 June 2023
Several security issues were fixed in pngcheck.
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 ESM
o Ubuntu 16.04 ESM
Packages
o pngcheck - Verifies the integrity of PNG, JNG and MNG files
Details
It was discovered that pngcheck incorrectly handled certain inputs. If a
user or an automated system were tricked into opening a specially crafted
input file, a remote attacker could possibly use this issue to cause a
denial of service.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o pngcheck - 2.3.0-7ubuntu0.20.04.1
Ubuntu 18.04
o pngcheck - 2.3.0-7ubuntu0.18.04.1~esm1
Available with Ubuntu Pro
Ubuntu 16.04
o pngcheck - 2.3.0-7ubuntu0.16.04.1~esm1
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References
o CVE-2020-27818
o CVE-2020-35511
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