Vulnerability CVE-2017-9461
Published: 2017-06-06

Description:
smbd in Samba before 4.4.10 and 4.5.x before 4.5.6 has a denial of service vulnerability (fd_open_atomic infinite loop with high CPU usage and memory consumption) due to wrongly handling dangling symlinks.

Type:

CWE-835

 (Loop with Unreachable Exit Condition ('Infinite Loop'))

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Samba -> Samba 
Redhat -> Enterprise linux desktop 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux server aus 
Redhat -> Enterprise linux server eus 
Redhat -> Enterprise linux server tus 
Redhat -> Enterprise linux workstation 
Debian -> Debian linux 

 References:
http://www.securityfocus.com/bid/99455
https://access.redhat.com/errata/RHSA-2017:1950
https://access.redhat.com/errata/RHSA-2017:2338
https://access.redhat.com/errata/RHSA-2017:2778
https://bugs.debian.org/864291
https://bugzilla.samba.org/show_bug.cgi?id=12572
https://git.samba.org/?p=samba.git;a=commit;h=10c3e3923022485c720f322ca4f0aca5d7501310
https://lists.debian.org/debian-lts-announce/2019/04/msg00013.html
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