CVE-2007-6067

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2008-01-09 · updated 2026-06-16
Weakness: CWE-189

Description

Algorithmic complexity vulnerability in the regular expression parser in TCL before 8.4.17, as used in PostgreSQL 8.2 before 8.2.6, 8.1 before 8.1.11, 8.0 before 8.0.15, and 7.4 before 7.4.19, allows remote authenticated users to cause a denial of service (memory consumption) via a crafted "complex" regular expression with doubly-nested states.

Affected products

PostgreSQL: 7.3, 7.3.1, 7.3.2, 7.3.3, 7.3.4, 7.3.6 (+50)
Tcl Tk: through 8.4.16

References

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01420154
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
http://lists.opensuse.org/opensuse-security-announce/2008-02/msg00000.html
http://rhn.redhat.com/errata/RHSA-2013-0122.html
http://secunia.com/advisories/28359
http://secunia.com/advisories/28376
http://secunia.com/advisories/28437
http://secunia.com/advisories/28438
http://secunia.com/advisories/28454
http://secunia.com/advisories/28455
http://secunia.com/advisories/28464
http://secunia.com/advisories/28477

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