SB2020040117 - Red Hat Enterprise Linux 7 update for net-snmp
Published: April 1, 2020
Security Bulletin ID
SB2020040117
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Null pointer dereference (CVE-ID: CVE-2018-18066)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.
The vulnerability exists in the snmp_oid_compare() function, as defined in the snmplib/snmp_api.c source code file due to a NULL pointer exception bug. A remote attacker can send a malicious UDP packet, trigger a NULL pointer dereference condition, cause the application to crash.
Remediation
Install update from vendor's website.