#VU65855 Input validation error in protobuf-c - CVE-2022-33070
Published: July 28, 2022 / Updated: April 25, 2023
Vulnerability identifier: #VU65855
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-33070
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
protobuf-c
protobuf-c
Software vendor:
protobuf-c
protobuf-c
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the parse_tag_and_wiretype() function in protobuf-c/protobuf-c.c. A remote attacker can trick the victim to open a specially crafted file, cause an invalid arithmetic shift and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.