Bug 1459464 (CVE-2017-9461) - CVE-2017-9461 samba: fd_open_atomic infinite loop due to wrong handling of dangling symlinks
Summary: CVE-2017-9461 samba: fd_open_atomic infinite loop due to wrong handling of da...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-9461
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1461021 1469906
Blocks: 1415638 1459466
TreeView+ depends on / blocked
 
Reported: 2017-06-07 08:52 UTC by Adam Mariš
Modified: 2020-08-13 09:19 UTC (History)
17 users (show)

Fixed In Version: samba 4.4.10, samba 4.5.6
Clone Of:
Environment:
Last Closed: 2019-06-08 03:14:46 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:1950 0 normal SHIPPED_LIVE Low: samba security, bug fix, and enhancement update 2017-08-01 18:09:24 UTC
Red Hat Product Errata RHSA-2017:2338 0 normal SHIPPED_LIVE Moderate: samba security update 2017-08-01 11:46:05 UTC
Red Hat Product Errata RHSA-2017:2778 0 normal SHIPPED_LIVE Moderate: samba security, bug fix, and enhancement update 2017-09-21 08:16:42 UTC

Description Adam Mariš 2017-06-07 08:52:10 UTC 
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.

Upstream patch:

https://git.samba.org/?p=samba.git;a=commit;h=10c3e3923022485c720f322ca4f0aca5d7501310
Comment 2 Huzaifa S. Sidhpurwala 2017-06-27 08:09:01 UTC 
There is an upstream bug at:
https://bugzilla.samba.org/show_bug.cgi?id=12572
Comment 5 errata-xmlrpc 2017-08-01 07:47:30 UTC 
This issue has been addressed in the following products:

  Red Hat Gluster Storage 3.2 for RHEL 7

Via RHSA-2017:2338 https://access.redhat.com/errata/RHSA-2017:2338
Comment 6 errata-xmlrpc 2017-08-01 18:22:43 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:1950 https://access.redhat.com/errata/RHSA-2017:1950
Comment 7 errata-xmlrpc 2017-09-21 04:46:58 UTC 
This issue has been addressed in the following products:

  Red Hat Gluster Storage 3.3 for RHEL 6

Via RHSA-2017:2778 https://access.redhat.com/errata/RHSA-2017:2778
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