USN-4755-1: LibTIFF vulnerabilities

Releases

• Ubuntu 20.10
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• tiff - Tag Image File Format (TIFF) library

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 versions:

Ubuntu 20.10

• libtiff-tools - 4.1.0+git191117-2ubuntu0.20.10.1
• libtiff5 - 4.1.0+git191117-2ubuntu0.20.10.1

Ubuntu 20.04

• libtiff-tools - 4.1.0+git191117-2ubuntu0.20.04.1
• libtiff5 - 4.1.0+git191117-2ubuntu0.20.04.1

Ubuntu 18.04

• libtiff-tools - 4.0.9-5ubuntu0.4
• libtiff5 - 4.0.9-5ubuntu0.4

Ubuntu 16.04

• libtiff-tools - 4.0.6-1ubuntu0.8
• libtiff5 - 4.0.6-1ubuntu0.8

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

References

• CVE-2020-35524
• CVE-2020-35523

Related notices

• USN-5841-1: libtiff-doc, libtiff4-dev, libtiff5-dev, libtiffxx5, libtiff-opengl, libtiff-tools, libtiff5-alt-dev, libtiff5, tiff