NULL pointer dereference in libyang - CVE-2023-26916
Published: August 18, 2023
Vulnerability identifier: #VU79701
CSH Severity: 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-2023-26916
CWE-ID: CWE-476
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 a NULL pointer dereference error within the lys_parse_mem() function in lys_parse_mem.c. A remote attacker can perform a denial of service attack.
Remediation
Install update from vendor's website.
External links
- https://github.com/CESNET/libyang/issues/1979
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6NQZHCJG3SBMFOQNIPRZGKDK3ARHLTTB/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U2VWGCMYKQH4BTFEHX5VYEXXOPIKKFHS/