Critical severity · published Nov 6, 2017
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 in an xattr name, which allows remote attackers to cause a…
9.8
CVSS
5.8%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.8% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
7.0; 8.0; 9.0 · source: NVD
RS
Rsync · Samba
after 2.6.9 through 3.1.2 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 16.04; 17.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-16548
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-16548
Issue Tracking
https://bugzilla.samba.org/show_bug.cgi?id=13112
git.samba.org
https://git.samba.org/rsync.git/?p=rsync.git%3Ba=commit%3Bh=47a63d90e71d3e19e0e96052bb8c6b9cb140ecc1
Third Party Advisory
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
More from Ubuntu Linux
9.8
CVE-2020-11651
SaltStack Salt Authentication Bypass Vulnerability
9.8
CVE-2020-7247
OpenSMTPD Remote Code Execution Vulnerability
9.8
CVE-2019-11043
Underflow in PHP-FPM can lead to RCE
9.8
CVE-2019-16928
Exim Out-of-bounds Write Vulnerability
9.8
CVE-2019-10149
Exim Mail Transfer Agent (MTA) Improper Input Validation