Detections
Analytics
FreeBSD : postgresql -- multiple vulnerabilities (51436b4c-1250-11dd-bab7-0016179b2dd5)
high Nessus Plugin ID 32063
Synopsis
The remote FreeBSD host is missing one or more security-related updates.Description
The PostgreSQL developers report :PostgreSQL allows users to create indexes on the results of user-defined functions, known as 'expression indexes'. This provided two vulnerabilities to privilege escalation: (1) index functions were executed as the superuser and not the table owner during VACUUM and ANALYZE, and (2) that SET ROLE and SET SESSION AUTHORIZATION were permitted within index functions. Both of these holes have now been closed.
PostgreSQL allowed malicious users to initiate a denial-of-service by passing certain regular expressions in SQL queries. First, users could create infinite loops using some specific regular expressions. Second, certain complex regular expressions could consume excessive amounts of memory. Third, out-of-range backref numbers could be used to crash the backend.
DBLink functions combined with local trust or ident authentication could be used by a malicious user to gain superuser privileges. This issue has been fixed, and does not affect users who have not installed DBLink (an optional module), or who are using password authentication for local access. This same problem was addressed in the previous release cycle, but that patch failed to close all forms of the loophole.
Solution
Update the affected packages.See Also
Plugin Details
Severity: High
ID: 32063
File Name: freebsd_pkg_51436b4c125011ddbab70016179b2dd5.nasl
Version: 1.19
Type: local
Family: FreeBSD Local Security Checks
Published: 4/28/2008
Updated: 1/6/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.3
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: p-cpe:/a:freebsd:freebsd:postgresql, p-cpe:/a:freebsd:freebsd:postgresql-server, cpe:/o:freebsd:freebsd
Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info
Exploit Ease: No known exploits are available
Patch Publication Date: 4/24/2008
Vulnerability Publication Date: 1/6/2008
Reference Information
CVE: CVE-2007-4769, CVE-2007-4772, CVE-2007-6067, CVE-2007-6600, CVE-2007-6601
BID: 27163