SB2020070906 - Integer underflow in Palo Alto PAN-OS
Published: July 9, 2020
Security Bulletin ID
SB2020070906
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) Integer underflow (CVE-ID: CVE-2020-2031)
CWE-ID: CWE-191 - Integer underflow
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to integer underflow in the dnsproxyd component of the PAN-OS management interface. A remote authenticated administrator attacker can send a specially crafted request to the affected application, trigger integer underflow and perform a denial of service attack by restarting the device and putting it into maintenance mode.
Remediation
Install update from vendor's website.