Vulnerability CVE-2017-16548


Published: 2017-11-06

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.

Type:

CWE-125

(Out-of-bounds Read)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Samba -> Rsync 

 References:
https://bugzilla.samba.org/show_bug.cgi?id=13112
https://git.samba.org/rsync.git/?p=rsync.git;a=commit;h=47a63d90e71d3e19e0e96052bb8c6b9cb140ecc1
https://lists.debian.org/debian-lts-announce/2017/12/msg00020.html
https://usn.ubuntu.com/3543-1/
https://usn.ubuntu.com/3543-2/
https://www.debian.org/security/2017/dsa-4068

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