Low: unzip

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  

Additional References

Red Hat: CVE-2021-4217, CVE-2022-0529, CVE-2022-0530

Mitre: CVE-2021-4217, CVE-2022-0529, CVE-2022-0530