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Ubuntu: 3962-1 Critical Security Issue in Libpng Causes Crash Risk

ubuntu
Calendar Grey April 30, 2019
Dist Ubuntu Esm H88
Explore the Ubuntu Security Advisory regarding the libpng flaw that could trigger system failures or unauthorized code execution from specially designed files.
libpng be made to crash or run programs if it opened a specially crafted file.

Summary

libpng be made to crash or run programs if it opened a specially crafted

file.

Software Description:

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

Details:

It was discovered that libpng incorrectly handled certain memory

operations. If a user or automated system were tricked into opening a

specially crafted PNG file, a remote attacker could use this issue to

cause libpng to crash, resulting in a denial of service, or possibly

execute arbitrary code.

Topics%20covered

Topics Covered

security advisory denial of service code execution Ubuntu libpng memory issue

Update Instructions

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

Ubuntu 18.10:
  libpng16-16                     1.6.34-2ubuntu0.1

Ubuntu 18.04 LTS:
  libpng16-16                     1.6.34-1ubuntu0.18.04.2

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

References

https://ubuntu.com/security/notices/USN-3962-1

CVE-2019-7317

Severity
critical
Lowest
Low
Medium
High
Critical

April 30, 2019

Topics%20covered

Topics Covered

security advisory denial of service code execution Ubuntu libpng memory issue

Package Information

https://launchpad.net/ubuntu/+source/libpng1.6/1.6.34-2ubuntu0.1
https://launchpad.net/ubuntu/+source/libpng1.6/1.6.34-1ubuntu0.18.04.2

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