CVE-2017-16548

critical

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.

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

Details

Source: MITRE

Published: 2017-11-06

Updated: 2020-05-01

Type: CWE-125

Risk Information

CVSS v2

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 9.8

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

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL