What is the severity of CVE-2021-28903?

CVE-2021-28903 has been classified as a high severity vulnerability due to its potential to cause denial of service.

How do I fix CVE-2021-28903?

To fix CVE-2021-28903, upgrade libyang to a version greater than 1.0.225.

What impact does CVE-2021-28903 have on systems using libyang?

CVE-2021-28903 can lead to a denial of service by crashing applications that depend on libyang due to a stack overflow.

Is CVE-2021-28903 exploitable remotely?

Yes, CVE-2021-28903 can be exploited remotely if the vulnerable libyang library is used in a network-facing application.

What versions of libyang are affected by CVE-2021-28903?

CVE-2021-28903 affects all versions of libyang up to and including 1.0.225.

Vulnerability/
CVE-2021-28903

high

7.5

CWE

674

20/5/2021

3/8/2024

CVE-2021-28903

First published: Thu May 20 2021(Updated: )

A stack overflow in libyang <= v1.0.225 can cause a denial of service through function lyxml_parse_mem(). lyxml_parse_elem() function will be called recursively, which will consume stack space and lead to 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-2021-28903?
CVE-2021-28903 has been classified as a high severity vulnerability due to its potential to cause denial of service.
How do I fix CVE-2021-28903?
To fix CVE-2021-28903, upgrade libyang to a version greater than 1.0.225.
What impact does CVE-2021-28903 have on systems using libyang?
CVE-2021-28903 can lead to a denial of service by crashing applications that depend on libyang due to a stack overflow.
Is CVE-2021-28903 exploitable remotely?
Yes, CVE-2021-28903 can be exploited remotely if the vulnerable libyang library is used in a network-facing application.
What versions of libyang are affected by CVE-2021-28903?
CVE-2021-28903 affects all versions of libyang up to and including 1.0.225.

agent/references
agent/type
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/severity
agent/weakness
agent/author
agent/last-modified-date
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-2021-28903?
CVE-2021-28903 has been classified as a high severity vulnerability due to its potential to cause denial of service.
How do I fix CVE-2021-28903?
To fix CVE-2021-28903, upgrade libyang to a version greater than 1.0.225.
What impact does CVE-2021-28903 have on systems using libyang?
CVE-2021-28903 can lead to a denial of service by crashing applications that depend on libyang due to a stack overflow.
Is CVE-2021-28903 exploitable remotely?
Yes, CVE-2021-28903 can be exploited remotely if the vulnerable libyang library is used in a network-facing application.
What versions of libyang are affected by CVE-2021-28903?
CVE-2021-28903 affects all versions of libyang up to and including 1.0.225.