What is the severity of CVE-2021-28902?

CVE-2021-28902 has been rated as a high severity vulnerability due to potential crashes in affected systems.

How do I fix CVE-2021-28902?

To fix CVE-2021-28902, update your libyang library to version 1.0.226 or later.

What systems are affected by CVE-2021-28902?

CVE-2021-28902 affects libyang versions up to and including 1.0.225.

What are the consequences of exploiting CVE-2021-28902?

Exploiting CVE-2021-28902 can lead to application crashes potentially causing denial of service.

Is there a workaround for CVE-2021-28902?

Currently, there is no established workaround for CVE-2021-28902, updating the software is the recommended approach.

Vulnerability/
CVE-2021-28902

high

7.5

CWE

252

20/5/2021

3/8/2024

CVE-2021-28902

First published: Thu May 20 2021(Updated: )

In function read_yin_container() in libyang <= v1.0.225, it doesn't check whether the value of retval->ext[r] is NULL. In some cases, it can be NULL, which leads to the operation of retval->ext[r]->flags that results in a crash.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
CESNET libyang	<=1.0.225

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-28902?
CVE-2021-28902 has been rated as a high severity vulnerability due to potential crashes in affected systems.
How do I fix CVE-2021-28902?
To fix CVE-2021-28902, update your libyang library to version 1.0.226 or later.
What systems are affected by CVE-2021-28902?
CVE-2021-28902 affects libyang versions up to and including 1.0.225.
What are the consequences of exploiting CVE-2021-28902?
Exploiting CVE-2021-28902 can lead to application crashes potentially causing denial of service.
Is there a workaround for CVE-2021-28902?
Currently, there is no established workaround for CVE-2021-28902, updating the software is the recommended approach.

agent/softwarecombine
agent/type
collector/mitre-cve
source/MITRE
agent/severity
agent/weakness
agent/author
agent/last-modified-date
agent/references
agent/description
agent/first-publish-date
agent/event
agent/source
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
vendor/cesnet
canonical/cesnet libyang
version/cesnet libyang/1.0.225

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Frequently Asked Questions

What is the severity of CVE-2021-28902?
CVE-2021-28902 has been rated as a high severity vulnerability due to potential crashes in affected systems.
How do I fix CVE-2021-28902?
To fix CVE-2021-28902, update your libyang library to version 1.0.226 or later.
What systems are affected by CVE-2021-28902?
CVE-2021-28902 affects libyang versions up to and including 1.0.225.
What are the consequences of exploiting CVE-2021-28902?
Exploiting CVE-2021-28902 can lead to application crashes potentially causing denial of service.
Is there a workaround for CVE-2021-28902?
Currently, there is no established workaround for CVE-2021-28902, updating the software is the recommended approach.