SB2022092322 - Buffer over read in Squid SSPI and SMB authentication helpers
Published: September 23, 2022
Security Bulletin ID
SB2022092322
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) Out-of-bounds read (CVE-ID: CVE-2022-41318)
The vulnerability allows a remote attacker to gain access to potentially sensitive information or crash the server.
The vulnerability exists due to a boundary condition within SSPI and SMB authentication helpers. A remote attacker can trigger an out-of-bounds read error and read contents of memory on the system or crash the server.
Successful exploitation of the vulnerability requires that Squid is configured to use NTLM or Negotiate authentication with one of the vulnerable helpers.
Remediation
Install update from vendor's website.