SB2021111050 - Red Hat Enterprise Linux 8 update for libssh
Published: November 10, 2021
Security Bulletin ID
SB2021111050
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2020-16135)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in tftpserver.c if ssh_buffer_new returns NULL. A remote attacker can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.