CVE-2017-9461
Samba SMBd Dangling Symlink DoS
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.
INFO
Published Date :
June 6, 2017, 9:29 p.m.
Last Modified :
Nov. 7, 2023, 2:50 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2017-9461
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2017-9461.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/99455 | Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2017:1950 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:2338 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:2778 | Third Party Advisory |
| https://bugs.debian.org/864291 | Exploit Issue Tracking Patch Third Party Advisory |
| https://bugzilla.samba.org/show_bug.cgi?id=12572 | Exploit Issue Tracking Patch Third Party Advisory VDB Entry |
| https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=10c3e3923022485c720f322ca4f0aca5d7501310 | |
| https://lists.debian.org/debian-lts-announce/2019/04/msg00013.html | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2017-9461 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-9461 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=10c3e3923022485c720f322ca4f0aca5d7501310 [No types assigned] Removed Reference MITRE https://git.samba.org/?p=samba.git;a=commit;h=10c3e3923022485c720f322ca4f0aca5d7501310 -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-399 CWE-835 -
Modified Analysis by [email protected]
Apr. 15, 2019
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/04/msg00013.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/04/msg00013.html Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 09, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/04/msg00013.html [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 14, 2019
Action Type Old Value New Value Changed CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:C) (AV:N/AC:L/Au:S/C:N/I:N/A:C) Changed CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://access.redhat.com/errata/RHSA-2017:2338 No Types Assigned https://access.redhat.com/errata/RHSA-2017:2338 Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2017:2778 No Types Assigned https://access.redhat.com/errata/RHSA-2017:2778 Third Party Advisory Changed Reference Type https://bugs.debian.org/864291 Exploit, Patch, Third Party Advisory https://bugs.debian.org/864291 Exploit, Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2017:1950 No Types Assigned https://access.redhat.com/errata/RHSA-2017:1950 Third Party Advisory Changed Reference Type http://www.securityfocus.com/bid/99455 No Types Assigned http://www.securityfocus.com/bid/99455 Third Party Advisory, VDB Entry Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 05, 2018
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2017:2338 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2017:1950 [No Types Assigned] -
CVE Modified by [email protected]
Dec. 09, 2017
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2017:2778 [No Types Assigned] -
CVE Modified by [email protected]
Nov. 29, 2017
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/99455 [No Types Assigned] -
Initial Analysis by [email protected]
Jun. 15, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://git.samba.org/?p=samba.git;a=commit;h=10c3e3923022485c720f322ca4f0aca5d7501310 No Types Assigned https://git.samba.org/?p=samba.git;a=commit;h=10c3e3923022485c720f322ca4f0aca5d7501310 Vendor Advisory Changed Reference Type https://bugs.debian.org/864291 No Types Assigned https://bugs.debian.org/864291 Exploit, Patch, Third Party Advisory Changed Reference Type https://bugzilla.samba.org/show_bug.cgi?id=12572 No Types Assigned https://bugzilla.samba.org/show_bug.cgi?id=12572 Exploit, Issue Tracking, Patch, Third Party Advisory, VDB Entry Added CWE CWE-399 Added CPE Configuration OR *cpe:2.3:a:samba:samba:4.4.9:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:samba:samba:4.5.0:*:*:*:*:*:*:* *cpe:2.3:a:samba:samba:4.5.1:*:*:*:*:*:*:* *cpe:2.3:a:samba:samba:4.5.2:*:*:*:*:*:*:* *cpe:2.3:a:samba:samba:4.5.3:*:*:*:*:*:*:* *cpe:2.3:a:samba:samba:4.5.4:*:*:*:*:*:*:* *cpe:2.3:a:samba:samba:4.5.5:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jun. 08, 2017
Action Type Old Value New Value Changed Description smbd in Samba before 4.4.10 and 4.5.x before 4.5.6 has a denial of service vulnerablity (fd_open_atomic infinite loop with high CPU usage and memory consumption) due to wrongly handling dangling symlinks. 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.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-9461 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2017-9461
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.53 }} -0.22%
score
0.77271
percentile