libming 0.4.8 util/dbl2png.c writePNG out-of-bounds

Summaryinfo

A vulnerability identified as critical has been detected in libming 0.4.8. The impacted element is the function writePNG of the file util/dbl2png.c. This manipulation causes out-of-bounds. This vulnerability is handled as CVE-2019-3572. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in libming 0.4.8 (Programming Tool Software) and classified as critical. Affected by this vulnerability is the function writePNG of the file util/dbl2png.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in libming 0.4.8. There is a heap-based buffer over-read in the function writePNG in the file util/dbl2png.c of the dbl2png command-line program. Because this is associated with an erroneous call to png_write_row in libpng, an out-of-bounds write might occur for some memory layouts.

The bug was discovered 12/29/2018. The weakness was released 01/02/2019 (Website). The advisory is shared at github.com. This vulnerability is known as CVE-2019-3572 since 01/02/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 261356 (Linux Distros Unpatched Vulnerability : CVE-2019-3572), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (261356). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Programming Tool Software

Name

• libming

Version

• 0.4.8

License

• open-source

Website

• Product: https://github.com/libming/libming/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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