#VU55301 Unchecked Return Value in libyang - CVE-2021-28902
Published: July 26, 2021
Vulnerability identifier: #VU55301
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-28902
CWE-ID: CWE-252
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
libyang
libyang
Software vendor:
CESNET
CESNET
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an unchecked return value in the "read_yin_container()" function. A remote attacker can run a specially crafted program to cause a denial of service condition.
Remediation
Install updates from vendor's website.