REDHAT-BUG-2469054: Integer Overflow
A flaw was found in rsync. An authenticated daemon peer can exploit an integer overflow vulnerability in the compressed-token decoder. By carefully manipulating the compressed-token, a malicious sender can trigger an overflow, leading to remote memory disclosure. This allows an attacker to leak sensitive process memory contents, including environment variables, passwords, and memory pointers, which significantly weakens Address Space Layout Randomization (ASLR) and can facilitate further exploitation.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Remove
Remove
rsyncfrom your environment.Uninstall rsync from systems where it is not required to eliminate exposure to the vulnerable component.
- Configuration
Disable the rsync daemon (stop it from listening for incoming daemon connections) if it is not required. If the daemon must run, restrict allowed peers and require strong authentication.
rsync (daemon) daemon_enabled = false - Compensating control
Restrict access to the rsync daemon to trusted peers/IPs using network controls (firewall, ACLs, VPN) so only authenticated/trusted senders can connect; block or isolate untrusted peers.
- Operational
Assume sensitive process memory (environment variables, passwords, keys) may have been exposed; rotate any credentials or secrets that may have been disclosed and review logs for suspicious activity or evidence of exploitation.
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-2469054?
The severity of REDHAT-BUG-2469054 is classified as high with a score of 7.
How do I fix REDHAT-BUG-2469054?
To fix REDHAT-BUG-2469054, apply the latest security patches provided for the rsync software.
What type of vulnerability is associated with REDHAT-BUG-2469054?
REDHAT-BUG-2469054 is associated with an integer overflow vulnerability.
Can REDHAT-BUG-2469054 be exploited remotely?
Yes, REDHAT-BUG-2469054 can be exploited by an authenticated daemon peer to leak sensitive information.
What impact does REDHAT-BUG-2469054 have?
The impact of REDHAT-BUG-2469054 includes potential remote memory disclosure due to an overflow triggered by manipulated compressed-tokens.