USN-3546-1: gcab vulnerability

Releases

• Ubuntu 17.10
• Ubuntu 16.04 ESM

Packages

• gcab - Microsoft Cabinet file manipulation tool

Details

Richard Hughes discovered that gcab incorrectly handled certain malformed
cabinet files. If a user or automated system were tricked into opening a
specially crafted cabinet file, a remote attacker could use this issue to
cause gcab to crash, resulting in a denial of service, or possibly execute
arbitrary code.

Update instructions

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

Ubuntu 17.10

• gcab - 0.7-4ubuntu0.1
• libgcab-1.0-0 - 0.7-4ubuntu0.1

Ubuntu 16.04

• gcab - 0.7-1ubuntu0.1
• libgcab-1.0-0 - 0.7-1ubuntu0.1

After a standard system update you need to restart your session to make
all the necessary changes.

References

• CVE-2018-5345