Home/CVE/The receive_xattr function in xattrs.c in rsync 3.1.2 and 3.1.3-development does not check for a trailing '\0' character
CVE

CVE-2017-16548

The receive_xattr function in xattrs.c in rsync 3.1.2 and 3.1.3-development does not check for a trailing '\0' character

The receive_xattr function in xattrs.c in rsync 3.1.2 and 3.1.3-development does not check for a trailing '\0' character in an xattr name, which allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact by sending crafted data to the daemon.

CRITICAL · CVSS 9.8 EPSS 0.03341
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules2 YARA rules0

Weakness Classification

Affected Products & Versions

3
samba rsync> 2.6.9 and <= 3.1.2
debian linuxall versions

Sigma Hunt Rules

2
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighShell Execution via Rsync - Linux
producthighSuspicious Invocation of Shell via Rsync

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Nov 2017 · 05:29 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Advisories

5
suse-csafopenSUSE-SU-2024:11308-1
suse-csafSUSE-SU-2018:0117-1
suse-csafSUSE-SU-2018:0118-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://usn.ubuntu.com/3543-1/Third Party Advisory
https://usn.ubuntu.com/3543-2/Third Party Advisory
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