USN-3212-2: LibTIFF regression

Ubuntu Security Notice USN-3212-2

30th May, 2017

tiff regression

A security issue affects these releases of Ubuntu and its
derivatives:

Ubuntu 16.10
Ubuntu 16.04 LTS
Ubuntu 14.04 LTS

Summary

USN-3212-1 caused a regression in LibTIFF.

Software description

tiff
– Tag Image File Format (TIFF) library

Details

USN-3212-1 fixed vulnerabilities in LibTIFF. Unfortunately, some of the
security patches were misapplied, which caused a regression when processing
certain images. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that LibTIFF incorrectly handled certain malformed
images. If a user or automated system were tricked into opening a specially
crafted image, a remote attacker could crash the application, leading to a
denial of service, or possibly execute arbitrary code with user privileges.

Update instructions

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

Ubuntu 16.10:: libtiff5

4.0.6-2ubuntu0.2; libtiff-tools

4.0.6-2ubuntu0.2
Ubuntu 16.04 LTS:: libtiff5

4.0.6-1ubuntu0.2; libtiff-tools

4.0.6-1ubuntu0.2
Ubuntu 14.04 LTS:: libtiff5

4.0.3-7ubuntu0.7; libtiff-tools

4.0.3-7ubuntu0.7

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

LP: 1670036

Source: USN-3212-2: LibTIFF regression

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