Bug 1221537 (CVE-2015-3165) - CVE-2015-3165 postgresql: double-free after authentication timeout
Summary: CVE-2015-3165 postgresql: double-free after authentication timeout
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2015-3165
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1224319 1224320 1225794 1225795 1225797 1225798 1225799 1232680 1232685
Blocks: 1221543
TreeView+ depends on / blocked
 
Reported: 2015-05-14 10:12 UTC by Martin Prpič
Modified: 2023-05-12 08:48 UTC (History)
30 users (show)

Fixed In Version: postgresql 9.4.2, postgresql 9.3.7, postgresql 9.2.11, postgresql 9.1.16, postgresql 9.0.20
Doc Type: Bug Fix
Doc Text:
A double-free flaw was found in the way PostgreSQL handled connections. An unauthenticated attacker could possibly exploit this flaw to crash the PostgreSQL backend by disconnecting at approximately the same time as the authentication time out was triggered.
Clone Of:
Environment:
Last Closed: 2015-07-10 04:31:40 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2015:1194 0 normal SHIPPED_LIVE Moderate: postgresql security update 2015-06-29 20:43:24 UTC
Red Hat Product Errata RHSA-2015:1195 0 normal SHIPPED_LIVE Moderate: postgresql92-postgresql security update 2015-06-29 20:09:47 UTC
Red Hat Product Errata RHSA-2015:1196 0 normal SHIPPED_LIVE Moderate: rh-postgresql94-postgresql security update 2015-06-29 20:09:05 UTC

Description Martin Prpič 2015-05-14 10:12:41 UTC 
The PostgreSQL project reports the following issue:

If a unauthenticated client disconnects just as the authentication timeout expires, the server will doubly free an allocation. This can crash the server, creating a denial of service. Since that particular server process exchanges no further data with any client, worse consequences are unlikely.

This flaw is fixed in upstream versions 9.4.2, 9.3.7, 9.2.11, 9.1.16, and 9.0.20 of PostgreSQL.

Acknowledgements:

Red Hat would like to thank the PostgreSQL project for reporting this issue. Upstream acknowledges Benkocs Norbert Attila as the original reporter.
Comment 4 Stefan Cornelius 2015-05-22 14:29:15 UTC 
Public via:
http://www.postgresql.org/about/news/1587/
Comment 8 Devrim Gündüz 2015-06-03 07:40:35 UTC 
Please note that PostgreSQL community is releasing new versions on 4th of July which fixes a critical startup issue, and also there is another release pending next week to fix data corruption issues.
Comment 9 Devrim Gündüz 2015-06-03 07:42:20 UTC 
(In reply to Devrim GÜNDÜZ from comment #8)
> Please note that PostgreSQL community is releasing new versions on 4th of
> July which fixes a critical startup issue, and also there is another release
> pending next week to fix data corruption issues.

Sorry, I meant June.
Comment 12 Stefan Cornelius 2015-06-25 13:15:51 UTC 
Patch:
http://git.postgresql.org/gitweb/?p=postgresql.git;a=commit;h=85270ac7a24a50d43ba4bd4d7af1e28b14dee7ee
Comment 13 errata-xmlrpc 2015-06-29 16:09:27 UTC 
This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6

Via RHSA-2015:1196 https://rhn.redhat.com/errata/RHSA-2015-1196.html
Comment 14 errata-xmlrpc 2015-06-29 16:10:40 UTC 
This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6

Via RHSA-2015:1195 https://rhn.redhat.com/errata/RHSA-2015-1195.html
Comment 15 errata-xmlrpc 2015-06-29 16:45:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2015:1194 https://rhn.redhat.com/errata/RHSA-2015-1194.html
Comment 16 Martin Prpič 2015-07-24 07:10:09 UTC 
Statement:

Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This flaw has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Note You need to log in before you can comment on or make changes to this bug.