1. Ubuntu Security Notices
  2. USN-5432-2

USN-5432-2: libpng vulnerabilities

Publication date

24 May 2022

Overview

Several security issues were fixed in libpng.

Releases

Packages

  • libpng1.6 - PNG (Portable Network Graphics) file library

Details

USN-5432-1 fixed vulnerabilities in libpng.
This update provides the corresponding updates for libpng1.6.

Original advisory details:

It was discovered that libpng incorrectly handled memory when parsing
certain PNG files. If a user or automated system were tricked into opening
a specially crafted PNG file, an attacker could use this issue to cause
libpng to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2017-12652)

Zhengxiong Luo discovered that libpng incorrectly handled memory when parsing
certain PNG files. If a user or automated system were tricked into opening
a specially crafted PNG file, an attacker could use this issue to cause
libpng to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2018-14048)

USN-5432-1 fixed vulnerabilities in libpng.
This update provides the corresponding updates for libpng1.6.

Original advisory details:

It was discovered that libpng incorrectly handled memory when parsing
certain PNG files. If a user or automated system were tricked into opening
a specially crafted PNG file, an attacker could use this issue to cause
libpng to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2017-12652)

Zhengxiong Luo discovered that libpng incorrectly handled memory when parsing
certain PNG files. If a user or automated system were tricked into opening
a specially crafted PNG file, an attacker could use this issue to cause
libpng to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2018-14048)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
16.04 xenial libpng16-dev –  1.6.20-2ubuntu0.1~esm1  
libpng16-16 –  1.6.20-2ubuntu0.1~esm1  

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References

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