Race Condition Affecting rsync package, versions <3.2.3-4+deb11u2


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Race Condition vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-DEBIAN11-RSYNC-8622818
  • published15 Jan 2025
  • disclosed14 Jan 2025

Introduced: 14 Jan 2025

NewCVE-2024-12747  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Debian:11 rsync to version 3.2.3-4+deb11u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rsync package and not the rsync package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

A flaw was found in rsync. This vulnerability arises from a race condition during rsync's handling of symbolic links. Rsync's default behavior when encountering symbolic links is to skip them. If an attacker replaced a regular file with a symbolic link at the right time, it was possible to bypass the default behavior and traverse symbolic links. Depending on the privileges of the rsync process, an attacker could leak sensitive information, potentially leading to privilege escalation.

CVSS Scores

version 3.1