Bug 1477187 (CVE-2017-7548) - CVE-2017-7548 postgresql: lo_put() function ignores ACLs
Summary: CVE-2017-7548 postgresql: lo_put() function ignores ACLs
Status: NEW
Alias: CVE-2017-7548
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: impact=moderate,public=20170810,repor...
Keywords: Security
Depends On: 1480283 1480284 1484632 1484633 1484634 1484635 1484636 1484637
Blocks: 1477189
TreeView+ depends on / blocked
 
Reported: 2017-08-01 12:34 UTC by Adam Mariš
Modified: 2019-01-02 22:43 UTC (History)
29 users (show)

(edit)
An authorization flaw was found in the way PostgreSQL handled large objects. A remote, authenticated attacker with no privileges on a large object could potentially use this flaw to overwrite the entire content of the object, thus resulting in denial of service.
Clone Of:
(edit)
Last Closed:


Attachments (Terms of Use)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:2677 normal SHIPPED_LIVE Moderate: rh-postgresql95-postgresql security update 2017-09-12 12:00:23 UTC
Red Hat Product Errata RHSA-2017:2678 normal SHIPPED_LIVE Moderate: rh-postgresql94-postgresql security update 2017-09-12 14:02:27 UTC

Description Adam Mariš 2017-08-01 12:34:50 UTC
Users with no privilege on a large object can overwrite the entire content of the object.

Supported vulnerable versions: 9.4 - 9.6

Upstream patch:

https://github.com/postgres/postgres/commit/f1cda6d6cbb2

Bug introduced in:

https://github.com/postgres/postgres/commit/c50b7c09d852b6d

The first affected upstream version is 9.4.

Comment 1 Adam Mariš 2017-08-01 12:35:00 UTC
Acknowledgments:

Name: the PostgreSQL project
Upstream: Chapman Flack

Comment 2 Adam Mariš 2017-08-10 15:09:06 UTC
External References:

https://www.postgresql.org/about/news/1772/

Comment 3 Adam Mariš 2017-08-10 15:12:42 UTC
Created mingw-postgresql tracking bugs for this issue:

Affects: fedora-all [bug 1480283]


Created postgresql tracking bugs for this issue:

Affects: fedora-all [bug 1480284]

Comment 8 errata-xmlrpc 2017-09-12 08:01:48 UTC
This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 6
  Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS

Via RHSA-2017:2677 https://access.redhat.com/errata/RHSA-2017:2677

Comment 9 errata-xmlrpc 2017-09-12 10:04:03 UTC
This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 6
  Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS

Via RHSA-2017:2678 https://access.redhat.com/errata/RHSA-2017:2678


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