Vulnerability identifier: #VU20023
Vulnerability risk: Low
CVSSv3.1: 5 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-125
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
FreeBSD
Operating systems & Components /
Operating system
Vendor: FreeBSD Foundation
Description
The vulnerability allows a remote attacker to perform denial of service (DoS) attack.
The vulnerability exists due to a boundary condition within the bsnmp software library when decoding ASN.1 data in SNMP packets. A remote authenticated user can send specially crafted SNMP packets, trigger out-of-bounds read error and perform denial of service (DoS) attack.
Mitigation
Vulnerable software versions
FreeBSD: 11.2 - 12.0
External links
http://www.freebsd.org/security/advisories/FreeBSD-SA-19:20.bsnmp.asc
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.