CVE-2021-28905

Public Exploit

Description

In function lys_node_free() in libyang <= v1.0.225, it asserts that the value of node->module can't be NULL. But in some cases, node->module can be null, which triggers a reachable assertion (CWE-617).

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.15%
Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/CESNET/libyang/issues/1452 issue tracking patch exploit third party advisory
https://security.gentoo.org/glsa/202107-54 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-28905?
CVE-2021-28905 has been scored as a high severity vulnerability.
How to fix CVE-2021-28905?
To fix CVE-2021-28905, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-28905 being actively exploited in the wild?
It is possible that CVE-2021-28905 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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