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Bug 1309987 - (CVE-2015-5370) CVE-2015-5370 samba: crash in dcesrv_auth_bind_ack due to missing error check
CVE-2015-5370 samba: crash in dcesrv_auth_bind_ack due to missing error check
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
urgent Severity urgent
: ---
: ---
Assigned To: Red Hat Product Security
impact=critical,public=20160412,repor...
: Security
Depends On: 1322685 1322686 1322687 1322688 1322689 1322690 1322691 1322692 1324803 1324804 1324805 1324806 1324807 1325382 1325383 1325384 1325385 1325645 1325649 1325650 1325651 1325832 1325838 1326453
Blocks: 1311915
  Show dependency tree / graph
 
Reported: 2016-02-19 02:20 EST by Huzaifa S. Sidhpurwala
Modified: 2016-04-19 01:28 EDT (History)
17 users (show)

See Also:
Fixed In Version: samba 4.4.1, samba 4.3.7, samba 4.2.10
Doc Type: Bug Fix
Doc Text:
Multiple flaws were found in Samba's DCE/RPC protocol implementation. A remote, authenticated attacker could use these flaws to cause a denial of service against the Samba server (high CPU load or a crash) or, possibly, execute arbitrary code with the permissions of the user running Samba (root). This flaw could also be used to downgrade a secure DCE/RPC connection by a man-in-the-middle attacker taking control of an Active Directory (AD) object and compromising the security of a Samba Active Directory Domain Controller (DC).
Story Points: ---
Clone Of:
Environment:
Last Closed: 2016-04-19 01:28:11 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Add an attachment (proposed patch, testcase, etc.)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:0611 normal SHIPPED_LIVE Critical: samba security update 2016-04-13 07:04:02 EDT
Red Hat Product Errata RHSA-2016:0612 normal SHIPPED_LIVE Critical: samba and samba4 security, bug fix, and enhancement update 2016-04-13 01:06:20 EDT
Red Hat Product Errata RHSA-2016:0613 normal SHIPPED_LIVE Critical: samba3x security update 2016-04-12 17:37:46 EDT
Red Hat Product Errata RHSA-2016:0614 normal SHIPPED_LIVE Critical: samba security, bug fix, and enhancement update 2016-04-12 21:38:55 EDT
Red Hat Product Errata RHSA-2016:0618 normal SHIPPED_LIVE Critical: samba security, bug fix, and enhancement update 2016-04-13 01:25:52 EDT
Red Hat Product Errata RHSA-2016:0619 normal SHIPPED_LIVE Critical: samba security update 2016-04-12 19:33:20 EDT
Red Hat Product Errata RHSA-2016:0620 normal SHIPPED_LIVE Critical: samba4 security, bug fix, and enhancement update 2016-04-12 21:20:34 EDT
Red Hat Product Errata RHSA-2016:0624 normal SHIPPED_LIVE Critical: samba3x security update 2016-04-12 19:15:40 EDT

  None (edit)
Description Huzaifa S. Sidhpurwala 2016-02-19 02:20:21 EST 
Multiple flaws were found in Samba's DCE/RPC protocol implementation. A remote authenticated attacker could use this flaw to cause denial of service against the Samba server (high CPU or even a server crash) or even execute arbitrary code with the permissions of the user running the Samba server (root). This flaw could also be used to downgrade a secure DCE/RPC connection by a man-in-the-middle attacker taking control of an Active Directory object and compromising the security of a Samba AD DC.

The above applies all possible server roles Samba can operate in.
Comment 11 Huzaifa S. Sidhpurwala 2016-04-11 01:20:32 EDT 
Acknowledgements:

Name: the Samba project
Upstream: Jouni Knuutinen (Synopsis)
Comment 12 Huzaifa S. Sidhpurwala 2016-04-11 01:44:53 EDT 
External Reference:

https://access.redhat.com/articles/2243351
Comment 15 Huzaifa S. Sidhpurwala 2016-04-12 13:08:45 EDT 
Public via:

https://www.samba.org/samba/security/CVE-2015-5370.html
Comment 16 Siddharth Sharma 2016-04-12 13:28:01 EDT 
Created samba tracking bugs for this issue:

Affects: fedora-all [bug 1326453]
Comment 17 errata-xmlrpc 2016-04-12 13:34:02 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2016:0611 https://rhn.redhat.com/errata/RHSA-2016-0611.html
Comment 18 errata-xmlrpc 2016-04-12 13:38:37 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5

Via RHSA-2016:0613 https://rhn.redhat.com/errata/RHSA-2016-0613.html
Comment 19 errata-xmlrpc 2016-04-12 15:16:22 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5.6 Long Life
  Red Hat Enterprise Linux 5.9 Long Life

Via RHSA-2016:0624 https://rhn.redhat.com/errata/RHSA-2016-0624.html
Comment 21 errata-xmlrpc 2016-04-12 15:33:41 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.4 Advanced Update Support
  Red Hat Enterprise Linux 6.2 Advanced Update Support
  Red Hat Enterprise Linux 6.6 Extended Update Support
  Red Hat Enterprise Linux 6.5 Advanced Update Support

Via RHSA-2016:0619 https://rhn.redhat.com/errata/RHSA-2016-0619.html
Comment 22 errata-xmlrpc 2016-04-12 17:24:13 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.6 Extended Update Support
  Red Hat Enterprise Linux 6.5 Advanced Update Support
  Red Hat Enterprise Linux 6.4 Advanced Update Support
  Red Hat Enterprise Linux 6.2 Advanced Update Support

Via RHSA-2016:0620 https://rhn.redhat.com/errata/RHSA-2016-0620.html
Comment 23 errata-xmlrpc 2016-04-12 17:39:18 EDT 
This issue has been addressed in the following products:

  Red Hat Gluster Storage 3.1 for RHEL 7
  Red Hat Gluster Storage 3.1 for RHEL 6

Via RHSA-2016:0614 https://rhn.redhat.com/errata/RHSA-2016-0614.html
Comment 24 errata-xmlrpc 2016-04-12 21:06:56 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 6

Via RHSA-2016:0612 https://rhn.redhat.com/errata/RHSA-2016-0612.html
Comment 25 errata-xmlrpc 2016-04-12 21:26:30 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.1 Extended Update Support

Via RHSA-2016:0618 https://rhn.redhat.com/errata/RHSA-2016-0618.html
Comment 27 Fedora Update System 2016-04-13 16:21:03 EDT 
samba-4.3.8-0.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 28 Fedora Update System 2016-04-14 00:20:47 EDT 
samba-4.2.11-0.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
Comment 29 Fedora Update System 2016-04-14 23:16:33 EDT 
samba-4.4.2-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
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