CVE-2017-17434

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Summary

CVECVE-2017-17434
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-12-06 03:29:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.0 9.8 CRITICAL from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.011560000 probability, percentile 0.787490000 (date 2026-05-16)

Problem Types: NVD-CWE-noinfo | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary9.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Application Samba Rsync All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[SECURITY] [DLA 1218-1] rsync security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.samba.org - rsync.git/commit af854a3a-2127-422b-91ae-364da2661108 git.samba.org
Debian -- Security Information -- DSA-4068-1 rsync af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
git.samba.org - rsync.git/commit af854a3a-2127-422b-91ae-364da2661108 git.samba.org
CLD-170 Details af854a3a-2127-422b-91ae-364da2661108 security.cucumberlinux.com Third Party Advisory
git.samba.org - rsync.git/commit MITRE git.samba.org
git.samba.org - rsync.git/commit MITRE git.samba.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 500605 Alpine Linux Security Update for rsync
  • 504364 Alpine Linux Security Update for rsync
  • 710226 Gentoo Linux rsync Multiple Vulnerabilities (GLSA 201801-16)

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