Out-of-Bounds Read Affecting rsync package, versions [0,3.4.0)
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Test your applications- Snyk IDSNYK-UNMANAGED-RSYNC-8627598
- published15 Jan 2025
- disclosed14 Jan 2025
- creditSimon Scannell, Pedro Gallegos, and Jasiel Spelman at Google Cloud Vulnerability Research
Introduced: 14 Jan 2025
NewCVE-2024-12085 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade rsync to version 3.4.0 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-Bounds Read when rsync compares file checksums.
An anonymous client can leverage this overflow, together with the heap-based buffer overflow described in CVE-2024-12084 to execute code on an affected server.
Alternatively, a malicious rsync server could gain read/write access to arbitrary files on a connected client.
Workaround
This vulnerability can be avoided by compiling with -ftrivial-auto-var-init=zero.