#VU32710 Input validation error in PostgreSQL - CVE-2013-1899

Vulnerability identifier: #VU32710

Vulnerability risk: Low

CVSSv4.0: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2013-1899

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
PostgreSQL
Server applications / Database software

Vendor: PostgreSQL Global Development Group

Description

The vulnerability allows remote attackers to cause a denial of service (file corruption), and allows remote authenticated users to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can modify configuration settings and execute arbitrary code, via a connection request using a database name that begins with a "-" (hyphen).

Mitigation
Update to version 9.2.4.

Vulnerable software versions

PostgreSQL: 9.2.0 - 9.2.3

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External links
https://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html
https://lists.apple.com/archives/security-announce/2013/Sep/msg00004.html
https://lists.fedoraproject.org/pipermail/package-announce/2013-April/101519.html
https://lists.fedoraproject.org/pipermail/package-announce/2013-April/102806.html
https://lists.opensuse.org/opensuse-security-announce/2013-04/msg00007.html
https://lists.opensuse.org/opensuse-security-announce/2013-04/msg00008.html
https://lists.opensuse.org/opensuse-security-announce/2013-04/msg00011.html
https://lists.opensuse.org/opensuse-security-announce/2013-04/msg00012.html
https://support.apple.com/kb/HT5880
https://support.apple.com/kb/HT5892
https://www.debian.org/security/2013/dsa-2658
https://www.mandriva.com/security/advisories?name=MDVSA-2013:142
https://www.postgresql.org/about/news/1456/
https://www.postgresql.org/docs/current/static/release-9-0-13.html
https://www.postgresql.org/docs/current/static/release-9-1-9.html
https://www.postgresql.org/docs/current/static/release-9-2-4.html
https://www.postgresql.org/support/security/faq/2013-04-04/
https://www.ubuntu.com/usn/USN-1789-1

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.