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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2020-27818)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6182-1 advisory.

    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.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 9 host has a package installed that is affected by a vulnerability as referenced in the dla-3032 advisory.

    A flaw was found in the check_chunk_name() function of pngcheck, a tool to 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

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

This update for pngcheck fixes the following issues :

  - CVE-2020-27818: Fixed a global buffer overflow in     check_chunk_name function via crafted pngfile     (boo#1179528).

ID	Name	Product	Family	Severity
255652	Linux Distros Unpatched Vulnerability : CVE-2020-27818	Nessus	Misc.	low
177471	Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS : pngcheck vulnerabilities (USN-6182-1)	Nessus	Ubuntu Local Security Checks	high
161685	Debian DLA-3032-1 : pngcheck - LTS security update	Nessus	Debian Local Security Checks	low
143537	openSUSE Security Update : pngcheck (openSUSE-2020-2198)	Nessus	SuSE Local Security Checks	low
143513	openSUSE Security Update : pngcheck (openSUSE-2020-2177)	Nessus	SuSE Local Security Checks	low

Detections

Analytics

CVE-2020-27818

low

Tenable Plugins

low

high

low

low

low