USN-3608-1: Zsh vulnerabilities

Releases

• Ubuntu 17.10
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• zsh - shell with lots of features

Details

Richard Maciel Costa discovered that Zsh incorrectly handled certain inputs.
An attacker could possibly use this to cause a denial of service. (CVE-2018-1071)

It was discovered that Zsh incorrectly handled certain files. An attacker could
possibly use this to execute arbitrary code. (CVE-2018-1083)

Update instructions

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

Ubuntu 17.10

• zsh - 5.2-5ubuntu1.2

Ubuntu 16.04

• zsh - 5.1.1-1ubuntu2.2

Ubuntu 14.04

• zsh - 5.0.2-3ubuntu6.2

After a standard system update you need to restart Zsh to make
all the necessary changes

References

• CVE-2018-1071
• CVE-2018-1083