SB2022042588 - openEuler update for squid
Published: April 25, 2022
Security Bulletin ID
SB2022042588
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
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-2021-28116)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the handling of the WCCP protocol. A remote attacker can send specially crafted data and corrupt Squids list of known WCCP routers and divert client traffic to attacker controlled routers.
This attack is limited to Squid proxy with WCCPv2 enabled and IP spoofing of a router IP address configured as trusted in squid.conf.
Remediation
Install update from vendor's website.