SB2020021414 - Denial of service in BearFTP
Published: February 14, 2020
Security Bulletin ID
SB2020021414
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) Resource management error (CVE-ID: CVE-2020-8815)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper connection handling in the base connection handler. A remote attacker can cause a denial of service condition via a Slowloris approach by sending a large volume of small packets.
Remediation
Install update from vendor's website.
References
- https://github.com/kolya5544/BearFTP
- https://github.com/kolya5544/BearFTP/blob/f5a8047587c1a96456d4f291c12b038b9ab0d0c5/BearFTP/Program.cs#L503-L525
- https://github.com/kolya5544/BearFTP/commit/17a6ead72d4a25cbfcef5e27613aa0a5f88a4b26
- https://github.com/kolya5544/BearFTP/commit/66dc9d95e58bca133f265457d32007cdf38b66ad
- https://github.com/kolya5544/BearFTP/releases/tag/0.4.0