#VU10810 Privilege escalation in PostgreSQL - CVE-2018-1058

Vulnerability identifier: #VU10810

Vulnerability risk: Low

CVSSv4.0: 7.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear]

CVE-ID: CVE-2018-1058

CWE-ID: CWE-427

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
PostgreSQL
Server applications / Database software

Vendor: PostgreSQL Global Development Group

Description
The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists in the pg_dump function due to improper security restrictions. A local attacker can submit a malicious function in separate namespaces and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to version 10.3.

Vulnerable software versions

PostgreSQL: 9.3.13 - 9.3.21, 9.4.10 - 9.4.16, 9.5.5 - 9.5.11, 9.6.0 - 9.6.7, 10.0 - 10.2

---

External links
https://www.postgresql.org/download

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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