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Ubuntu 18.04 LTS: 4107-1 Critical: GIFLIB Denial of Service

ubuntu
Calendar Grey August 20, 2019
Dist Ubuntu Esm H88
Ubuntu has issued critical patches for GIFLIB security vulnerabilities to prevent potential denial of service attacks. Users should apply these updates promptly to secure systems.
Several security issues were fixed in GIFLIB.

Summary

Several security issues were fixed in GIFLIB.

Software Description:

- giflib: library for GIF images (utilities)

Details:

It was discovered that GIFLIB incorrectly handled certain GIF files.

An attacker could possibly use this issue to cause a denial of service.

This issue only affected Ubuntu 18.04 LTS. (CVE-2016-3977)

It was discovered that GIFLIB incorrectly handled certain GIF files.

An attacker could possibly use this issue to cause a denial of service.

(CVE-2018-11490, CVE-2019-15133)

Topics%20covered

Topics Covered

security advisory software update ubuntu dos giflib libgif

Update Instructions

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

Ubuntu 19.04:
  giflib-tools                    5.1.4-3ubuntu0.1
  libgif7                         5.1.4-3ubuntu0.1

Ubuntu 18.04 LTS:
  giflib-tools                    5.1.4-2ubuntu0.1
  libgif7                         5.1.4-2ubuntu0.1

Ubuntu 16.04 LTS:
  giflib-tools                    5.1.4-0.3~16.04.1
  libgif7                         5.1.4-0.3~16.04.1

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

References

https://ubuntu.com/security/notices/USN-4107-1

CVE-2016-3977, CVE-2018-11490, CVE-2019-15133

Severity
critical
Lowest
Low
Medium
High
Critical

August 20, 2019

Topics%20covered

Topics Covered

security advisory software update ubuntu dos giflib libgif

Package Information

https://launchpad.net/ubuntu/+source/giflib/5.1.4-3ubuntu0.1
https://launchpad.net/ubuntu/+source/giflib/5.1.4-2ubuntu0.1
https://launchpad.net/ubuntu/+source/giflib/5.1.4-0.3~16.04.1

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