CVE-2017-16548
Last modified
CVE-2017-16548 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 5.16% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Samba | Rsync | > 2.6.9, <= 3.1.2 |
| Canonical | Ubuntu Linux | 12.04 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 17.10 |
| Debian | Debian Linux | 7.0 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
References
- https://bugzilla.samba.org/show_bug.cgi?id=13112Issue Tracking
- https://lists.debian.org/debian-lts-announce/2017/12/msg00020.htmlThird 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-4068Third Party Advisory
- https://bugzilla.samba.org/show_bug.cgi?id=13112Issue Tracking
- https://lists.debian.org/debian-lts-announce/2017/12/msg00020.htmlThird 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-4068Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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