Amazon Linux 2 Security Advisory: ALAS-2020-1551
Advisory Release Date: 2020-10-22 18:44 Pacific
Advisory Updated Date: 2020-10-22 22:33 Pacific
Severity:
Medium
Issue Overview:
It was discovered that zziplib is vulnerable to a directory traversal flaw in most of its unzip binaries, including unzip-mem, unzzipcat-mem, unzzipcat-big, unzzipcat-mix, and unzzipcat-zip. An attacker may use this flaw to write files outside the intended target directory, overwriting existing files, or creating new ones. (CVE-2018-17828)
Affected Packages:
zziplib
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update zziplib to update your system.
New Packages:
aarch64:
zziplib-0.13.62-12.amzn2.aarch64
zziplib-utils-0.13.62-12.amzn2.aarch64
zziplib-devel-0.13.62-12.amzn2.aarch64
zziplib-debuginfo-0.13.62-12.amzn2.aarch64
i686:
zziplib-0.13.62-12.amzn2.i686
zziplib-utils-0.13.62-12.amzn2.i686
zziplib-devel-0.13.62-12.amzn2.i686
zziplib-debuginfo-0.13.62-12.amzn2.i686
src:
zziplib-0.13.62-12.amzn2.src
x86_64:
zziplib-0.13.62-12.amzn2.x86_64
zziplib-utils-0.13.62-12.amzn2.x86_64
zziplib-devel-0.13.62-12.amzn2.x86_64
zziplib-debuginfo-0.13.62-12.amzn2.x86_64