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Ubuntu Security Notice USN-3608-1
March 27, 2018
zsh vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 17.10
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in Zsh.
Software Description:
– 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 LTS:
zsh 5.1.1-1ubuntu2.2
Ubuntu 14.04 LTS:
zsh 5.0.2-3ubuntu6.2
After a standard system update you need to restart Zsh to make
all the necessary changes
References:
https://usn.ubuntu.com/usn/usn-3608-1
CVE-2018-1071, CVE-2018-1083
Package Information:
https://launchpad.net/ubuntu/+source/zsh/5.2-5ubuntu1.2
https://launchpad.net/ubuntu/+source/zsh/5.1.1-1ubuntu2.2
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