CVE-2017-9461

Public Exploit

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 4.03% Top 15%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/99455 vdb entry third party advisory
https://access.redhat.com/errata/RHSA-2017:2778 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:1950 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:2338 third party advisory vendor advisory
https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=10c3e3923022485c720f322ca4f0aca5d7501310
https://bugzilla.samba.org/show_bug.cgi?id=12572 issue tracking patch exploit vdb entry third party advisory
https://bugs.debian.org/864291 issue tracking patch exploit third party advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00013.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2017-9461?
CVE-2017-9461 has been scored as a medium severity vulnerability.
How to fix CVE-2017-9461?
To fix CVE-2017-9461, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-9461 being actively exploited in the wild?
It is possible that CVE-2017-9461 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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