Vulnerability identifier: #VU33905

Vulnerability risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:L/PR:/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-1900

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PostgreSQL
Server applications / Database software

Vendor: PostgreSQL Global Development Group

Description

The vulnerability allows a remote #AU# to execute arbitrary code.

PostgreSQL 9.2.x before 9.2.4, 9.1.x before 9.1.9, 9.0.x before 9.0.13, and 8.4.x before 8.4.17, when using OpenSSL, generates insufficiently random numbers, which might allow remote authenticated users to have an unspecified impact via vectors related to the "contrib/pgcrypto functions." Per http://www.ubuntu.com/usn/USN-1789-1/ "A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.10 Ubuntu 12.04 LTS Ubuntu 11.10 Ubuntu 10.04 LTS Ubuntu 8.04 LTS"

Mitigation
Install update from vendor's website.

Vulnerable software versions

PostgreSQL: 9.2.0 - 9.2.3

---

External links
http://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html
http://lists.apple.com/archives/security-announce/2013/Sep/msg00004.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101519.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-April/102806.html
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00012.html
http://rhn.redhat.com/errata/RHSA-2013-1475.html
http://support.apple.com/kb/HT5880
http://support.apple.com/kb/HT5892
http://www.debian.org/security/2013/dsa-2657
http://www.debian.org/security/2013/dsa-2658
http://www.mandriva.com/security/advisories?name=MDVSA-2013:142
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.postgresql.org/about/news/1456/
http://www.postgresql.org/docs/current/static/release-8-4-17.html
http://www.postgresql.org/docs/current/static/release-9-0-13.html
http://www.postgresql.org/docs/current/static/release-9-1-9.html
http://www.postgresql.org/docs/current/static/release-9-2-4.html
http://www.ubuntu.com/usn/USN-1789-1

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.