Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU29535
Risk: Medium
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-20892
CWE-ID:
CWE-415 - Double Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing an SNMPv3 GetBulk request in usm_free_usmStateReference in snmplib/snmpusm.c in net-snmp. A remote attacker can pass specially crafted data to the application, trigger double free error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS
python3-net-snmp: before 5.8-10
net-snmp-perl: before 5.8-10
net-snmp-libs: before 5.8-10
net-snmp-help: before 5.8-10
net-snmp-gui: before 5.8-10
net-snmp-devel: before 5.8-10
net-snmp-debugsource: before 5.8-10
net-snmp-debuginfo: before 5.8-10
net-snmp: before 5.8-10
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2020-1050
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.