CVE-2017-7548
First published: Tue Aug 01 2017(Updated: )
PostgreSQL versions before 9.4.13, 9.5.8 and 9.6.4 are vulnerable to authorization flaw allowing remote authenticated attackers with no privileges on a large object to overwrite the entire contents of the object, resulting in a denial of service.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/postgresql | <9.4.13 | 9.4.13 |
| redhat/postgresql | <9.5.8 | 9.5.8 |
| redhat/postgresql | <9.6.4 | 9.6.4 |
| PostgreSQL 13 | >=9.4<9.4.13 | |
| PostgreSQL 13 | >=9.5<9.5.8 | |
| PostgreSQL 13 | >=9.6<9.6.4 | |
| Debian | =8.0 | |
| Debian | =9.0 |
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Reference Links
- http://www.debian.org/security/2017/dsa-3935
- http://www.debian.org/security/2017/dsa-3936
- http://www.securityfocus.com/bid/100276
- http://www.securitytracker.com/id/1039142
- https://access.redhat.com/errata/RHSA-2017:2677
- https://access.redhat.com/errata/RHSA-2017:2678
- https://security.gentoo.org/glsa/201710-06
- https://www.postgresql.org/about/news/1772/
- https://github.com/postgres/postgres/commit/f1cda6d6cbb2
- https://github.com/postgres/postgres/commit/c50b7c09d852b6d
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1480283
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1480284
- https://bugzilla.redhat.com/show_bug.cgi?id=1477187
Frequently Asked Questions
What is the severity of CVE-2017-7548?
CVE-2017-7548 is considered to have a moderate severity due to the potential for denial of service from unauthorized overwriting of large objects.
How do I fix CVE-2017-7548?
To fix CVE-2017-7548, upgrade PostgreSQL to versions 9.4.13, 9.5.8, or 9.6.4 or later.
Who is affected by CVE-2017-7548?
CVE-2017-7548 affects PostgreSQL versions prior to 9.4.13, 9.5.8, and 9.6.4.
What type of vulnerability is CVE-2017-7548?
CVE-2017-7548 is an authorization flaw that allows remote authenticated attackers to overwrite large objects.
Can CVE-2017-7548 be exploited remotely?
Yes, CVE-2017-7548 can be exploited remotely by authenticated users who lack privileges on large objects.
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