Rapid7 Vulnerability & Exploit Database

Samba CVE-2020-27840: CVE-2020-27840 and CVE-2021-20277. Please see announcements for details.

Back to Search

Samba CVE-2020-27840: CVE-2020-27840 and CVE-2021-20277. Please see announcements for details.

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
04/15/2021
Created
04/15/2021
Added
04/15/2021
Modified
06/11/2021

Description

A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.

Solution(s)

  • samba-upgrade-4_12_14
  • samba-upgrade-4_13_7
  • samba-upgrade-4_14_2

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;