ALAS2-2023-1906


Amazon Linux 2 Security Advisory: ALAS-2023-1906
Advisory Release Date: 2023-01-18 00:16 Pacific
Advisory Updated Date: 2023-01-20 23:24 Pacific
Severity: Low

Issue Overview:

A flaw was found in unzip. The vulnerability occurs due to improper handling of Unicode strings, which can lead to a null pointer dereference. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution. (CVE-2021-4217)

A flaw was found in Unzip. The vulnerability occurs during the conversion of a wide string to a local string that leads to a heap of out-of-bound write. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution. (CVE-2022-0529)

A flaw was found in Unzip. The vulnerability occurs during the conversion of a UTF-8 string to a local string that leads to a segmentation fault. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution. (CVE-2022-0530)


Affected Packages:

unzip


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 unzip to update your system.

New Packages:
aarch64:
    unzip-6.0-57.amzn2.0.1.aarch64
    unzip-debuginfo-6.0-57.amzn2.0.1.aarch64

i686:
    unzip-6.0-57.amzn2.0.1.i686
    unzip-debuginfo-6.0-57.amzn2.0.1.i686

src:
    unzip-6.0-57.amzn2.0.1.src

x86_64:
    unzip-6.0-57.amzn2.0.1.x86_64
    unzip-debuginfo-6.0-57.amzn2.0.1.x86_64