QID 355191

Date Published: 2023-05-29

QID 355191: Amazon Linux Security Advisory for unzip : ALAS2023-2023-029

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.
( 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.
( CVE-2022-0530)



Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as Medium - 5.5 severity.
  • CVSS V2 rated as Medium - 4.3 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2023-2023-029 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 355191

    CVE-2022-0530 | CVE-2021-4217 | CVE-2022-0529 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2023-2023-029 amazon linux 2023 URL Logo alas.aws.amazon.com/AL2023/ALAS-2023-029.html
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