Amazon Linux 1 Security Advisory: ALAS-2019-1285
Advisory Release Date: 2019-09-13 22:56 Pacific
Advisory Updated Date: 2019-09-18 21:36 Pacific
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.
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