SB2020091406 - Denial of service in ProFTPD
Published: September 14, 2020
Security Bulletin ID
SB2020091406
CSH Severity
Medium
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: N/A)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error when processing SCP connection request. A remote non-authenticated attacker can try to initiate SCP connection, trigger NULL pointer dereference error and crash ProFTPd daemon.
Example:
ssh user@server scp
Remediation
Install update from vendor's website.