Vulnerability 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 Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Samba | Rsync | <= 3.1.2 |
| Canonical | Ubuntu Linux | 12.04 |
| Debian | Debian Linux | 7.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.samba.org/show_bug.cgi?id=13112Issue Tracking
- https://git.samba.org/rsync.git/?p=rsync.git%3Ba=commit%3Bh=47a63d90e71d3e19e0e9
- 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://git.samba.org/rsync.git/?p=rsync.git%3Ba=commit%3Bh=47a63d90e71d3e19e0e9
- 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
FAQ
What is CVE-2017-16548?
CVE-2017-16548 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 (h...
How severe is CVE-2017-16548?
CVE-2017-16548 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2017-16548?
Check the references section above for vendor advisories and patch information. Affected products include: Samba Rsync, Canonical Ubuntu Linux, Debian Debian Linux.