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Vulnerability record · CVE-2017-16548 · published 6 November 2017

CVE-2017-16548: Samba rsync out-of-bounds read vulnerability

Samba · Rsync

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.

9.8 CVSS 3.1 Critical EPSS 5.8% · top 7.2% CWE-125 · Out-of-bounds read
9.8CVSS 3.1 base score, v2 7.5
5.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.samba.org/show_bug.cgi?id=13112 Issue Tracking
https://git.samba.org/rsync.git/?p=rsync.git%3Ba=commit%3Bh=47a63d90e71d3e19e0e96052bb8c6b9cb140ecc1
https://lists.debian.org/debian-lts-announce/2017/12/msg00020.html Third Party Advisory
https://usn.ubuntu.com/3543-1/ Third Party Advisory
https://usn.ubuntu.com/3543-2/ Third Party Advisory
https://www.debian.org/security/2017/dsa-4068 Third Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=13112 Issue Tracking
https://git.samba.org/rsync.git/?p=rsync.git%3Ba=commit%3Bh=47a63d90e71d3e19e0e96052bb8c6b9cb140ecc1
https://lists.debian.org/debian-lts-announce/2017/12/msg00020.html Third Party Advisory
https://usn.ubuntu.com/3543-1/ Third Party Advisory
https://usn.ubuntu.com/3543-2/ Third Party Advisory
https://www.debian.org/security/2017/dsa-4068 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2017-16548), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.