ALAS-2019-1285


Amazon Linux AMI Security Advisory: ALAS-2019-1285
Advisory Release Date: 2019-09-18 21:36 Pacific
Severity: Medium
References: CVE-2018-13259 

Issue Overview:

It was discovered that zsh does not properly validate the shebang of input files and it truncates it to the first 64 bytes. A local attacker may use this flaw to make zsh execute a different binary than what is expected, named with a substring of the shebang one.(CVE-2018-13259 )


Affected Packages:

zsh


Issue Correction:
Run yum update zsh to update your system.

New Packages:
i686:
    zsh-html-5.0.2-33.18.amzn1.i686
    zsh-5.0.2-33.18.amzn1.i686
    zsh-debuginfo-5.0.2-33.18.amzn1.i686

src:
    zsh-5.0.2-33.18.amzn1.src

x86_64:
    zsh-html-5.0.2-33.18.amzn1.x86_64
    zsh-5.0.2-33.18.amzn1.x86_64
    zsh-debuginfo-5.0.2-33.18.amzn1.x86_64