#VU55302 Uncontrolled Recursion in libyang - CVE-2021-28903
Published: July 26, 2021
Vulnerability identifier: #VU55302
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-2021-28903
CWE-ID: CWE-674
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 uncontrolled recursion in the "lyxml_parse_elem()" function. A remote attacker can cause a denial of service condition on the target system.
Remediation
Install updates from vendor's website.