Ubuntu Security Notice 3712-2 - USN-3712-1 fixed a vulnerability in libpng. This update provides the corresponding update for Ubuntu 12.04 ESM. Patrick Keshishian discovered that libpng incorrectly handled certain PNG files. An attacker could possibly use this to cause a denial of service. Various other issues were also addressed.
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Ubuntu Security Notice USN-3712-2
July 11, 2018
libpng vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Summary:
libpng could be made to crash if it received a specially crafted file.
Software Description:
- libpng: PNG (Portable Network Graphics) file library
Details:
USN-3712-1 fixed a vulnerability in libpng. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Patrick Keshishian discovered that libpng incorrectly handled certain
PNG files. An attacker could possibly use this to cause a denial of
service.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 ESM:
libpng12-0 1.2.46-3ubuntu4.3
In general, a standard system update will make all the necessary
changes.
References:
https://usn.ubuntu.com/usn/usn-3712-2
https://usn.ubuntu.com/usn/usn-3712-1
CVE-2016-10087