What is CVE-2021-27347?

CVE-2021-27347 refers to a vulnerability in the Irzip software that allows attackers to cause a Denial of Service (DoS) by exploiting a use after free vulnerability in the lzma_decompress_buf function in stream.c.

How does CVE-2021-27347 affect the Long Range Zip Project's Long Range Zip software?

The CVE-2021-27347 vulnerability affects Long Range Zip Project's Long Range Zip software version 0.631, potentially allowing attackers to cause a DoS attack using a crafted compressed file.

Which Debian Linux version is affected by CVE-2021-27347?

CVE-2021-27347 affects Debian Linux version 9.0.

What is the severity of CVE-2021-27347?

The severity of CVE-2021-27347 is rated as medium with a CVSS score of 5.5.

How can I fix CVE-2021-27347?

To fix CVE-2021-27347, it is recommended to update to a patched version of the Irzip software released by the Long Range Zip Project or to update the Debian Linux operating system to a version that includes the fix.

Vulnerability/
CVE-2021-27347

medium

5.5

CWE

416

10/6/2021

3/8/2024

CVE-2021-27347: Use After Free

First published: Thu Jun 10 2021(Updated: )

Use after free in lzma_decompress_buf function in stream.c in Irzip 0.631 allows attackers to cause Denial of Service (DoS) via a crafted compressed file.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Long Range Zip Project Long Range Zip	=0.631
Debian Debian Linux	=9.0

Remedy

https://github.com/ckolivas/lrzip/issues/165

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Reference Links

Frequently Asked Questions

What is CVE-2021-27347?
CVE-2021-27347 refers to a vulnerability in the Irzip software that allows attackers to cause a Denial of Service (DoS) by exploiting a use after free vulnerability in the lzma_decompress_buf function in stream.c.
How does CVE-2021-27347 affect the Long Range Zip Project's Long Range Zip software?
The CVE-2021-27347 vulnerability affects Long Range Zip Project's Long Range Zip software version 0.631, potentially allowing attackers to cause a DoS attack using a crafted compressed file.
Which Debian Linux version is affected by CVE-2021-27347?
CVE-2021-27347 affects Debian Linux version 9.0.
What is the severity of CVE-2021-27347?
The severity of CVE-2021-27347 is rated as medium with a CVSS score of 5.5.
How can I fix CVE-2021-27347?
To fix CVE-2021-27347, it is recommended to update to a patched version of the Irzip software released by the Long Range Zip Project or to update the Debian Linux operating system to a version that includes the fix.

collector/nvd-index
agent/author
agent/severity
agent/references
agent/weakness
agent/type
agent/event
agent/description
agent/last-modified-date
agent/softwarecombine
agent/first-publish-date
agent/remedy
agent/tags
collector/mitre-cve
source/MITRE
vendor/long range zip project
canonical/long range zip project long range zip
version/long range zip project long range zip/0.631
vendor/debian
canonical/debian debian linux
version/debian debian linux/9.0

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