What is the severity of CVE-2017-5923?

CVE-2017-5923 is categorized as a denial of service vulnerability due to its potential to crash the application.

How do I fix CVE-2017-5923?

To resolve CVE-2017-5923, update YARA to a version later than 3.5.0 in which the vulnerability has been addressed.

Which versions of YARA are affected by CVE-2017-5923?

CVE-2017-5923 specifically affects YARA version 3.5.0.

What can exploit CVE-2017-5923?

CVE-2017-5923 can be exploited through crafted rules that trigger mishandling in the yara_yyparse function.

What are the consequences of CVE-2017-5923?

Exploitation of CVE-2017-5923 can lead to a heap-based out-of-bounds read, resulting in an application crash.

Vulnerability/
CVE-2017-5923

high

7.5

CWE

125

3/4/2017

2/5/2017

CVE-2017-5923

First published: Mon Apr 03 2017(Updated: )

libyara/grammar.y in YARA 3.5.0 allows remote attackers to cause a denial of service (heap-based out-of-bounds read and application crash) via a crafted rule that is mishandled in the yara_yyparse function.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
VirusTotal yara	=3.5.0

Remedy

https://github.com/VirusTotal/yara/commit/ab906da53ff2a68c6fd6d1fa73f2b7c7bf0bc636

Remedy

https://github.com/VirusTotal/yara/issues/597

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2017-5923?
CVE-2017-5923 is categorized as a denial of service vulnerability due to its potential to crash the application.
How do I fix CVE-2017-5923?
To resolve CVE-2017-5923, update YARA to a version later than 3.5.0 in which the vulnerability has been addressed.
Which versions of YARA are affected by CVE-2017-5923?
CVE-2017-5923 specifically affects YARA version 3.5.0.
What can exploit CVE-2017-5923?
CVE-2017-5923 can be exploited through crafted rules that trigger mishandling in the yara_yyparse function.
What are the consequences of CVE-2017-5923?
Exploitation of CVE-2017-5923 can lead to a heap-based out-of-bounds read, resulting in an application crash.

collector/nvd-index
vendor/virustotal
canonical/virustotal yara
version/virustotal yara/3.5.0

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Frequently Asked Questions

What is the severity of CVE-2017-5923?
CVE-2017-5923 is categorized as a denial of service vulnerability due to its potential to crash the application.
How do I fix CVE-2017-5923?
To resolve CVE-2017-5923, update YARA to a version later than 3.5.0 in which the vulnerability has been addressed.
Which versions of YARA are affected by CVE-2017-5923?
CVE-2017-5923 specifically affects YARA version 3.5.0.
What can exploit CVE-2017-5923?
CVE-2017-5923 can be exploited through crafted rules that trigger mishandling in the yara_yyparse function.
What are the consequences of CVE-2017-5923?
Exploitation of CVE-2017-5923 can lead to a heap-based out-of-bounds read, resulting in an application crash.