ALAS2-2020-1551


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