SB2011030301 - Denial of service in vsftpd
Published: March 3, 2011 Updated: May 30, 2023
Security Bulletin ID
SB2011030301
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 security vulnerability.
1) Denial of service (CVE-ID: CVE-2011-0762)
The vulnerability allows a remote attacker to cause a denial of service (DoS) attack.
The vulnerability exists due to an error in vsf_filename_passes_filter() function in ls.c file, when parsing glob expressions in STAT commands. A remote authenticated attacker can consume a large amount of CPU resources by creating multiple FTP sessions and sending specially crafted STAT commands.
Successful exploitation of the vulnerability may result in denial of service attack of entire system.
Remediation
Install update from vendor's website.