SB2021031525 - Denial of service in libnbd
Published: March 15, 2021 Updated: November 10, 2023
Security Bulletin ID
SB2021031525
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 security vulnerability.
1) Reachable Assertion (CVE-ID: CVE-2021-20286)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion within the nbd_unlocked_opt_go() function in ilb/opt.c. A remote attacker can send specially crafted input to the application and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.