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CVE-2017-17434 Affecting rsync package, versions <3.1.2-2.1

Severity

 Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.98% (84th percentile)

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  • Snyk IDSNYK-DEBIAN13-RSYNC-5694835
  • published6 Dec 2017
  • disclosed6 Dec 2017
Report a new vulnerability Found a mistake?

Introduced: 6 Dec 2017

CVE-2017-17434  (opens in a new tab)

How to fix?

Upgrade Debian:13 rsync to version 3.1.2-2.1 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:13 relevant fixed versions and status.

The daemon in rsync 3.1.2, and 3.1.3-development before 2017-12-03, does not check for fnamecmp filenames in the daemon_filter_list data structure (in the recv_files function in receiver.c) and also does not apply the sanitize_paths protection mechanism to pathnames found in "xname follows" strings (in the read_ndx_and_attrs function in rsync.c), which allows remote attackers to bypass intended access restrictions.