CVE-2007-4769

CVE-2007-4769 is a medium-severity vulnerability in Postgresql with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

• Severity: Medium (CVSS 2.0 base score 6.8)
• EPSS exploit prediction: 4% (88th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-189
• Affected product: Postgresql
• Published: 2008-01-09
• Last modified: 2026-06-16

Description

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 (backend crash) via an out-of-bounds backref number.

Frequently asked questions

What is CVE-2007-4769?

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 (backend crash) via an out-of-bounds backref number.

How severe is CVE-2007-4769?

CVE-2007-4769 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2007-4769 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4769?

CVE-2007-4769 primarily affects Postgresql. In total, 57 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-4769?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2007-4769 published?

CVE-2007-4769 was published on 2008-01-09 and last updated on 2026-06-16.

References

• http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01420154
• http://lists.opensuse.org/opensuse-security-announce/2008-02/msg00000.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
• http://secunia.com/advisories/28479
• http://secunia.com/advisories/28679
• http://secunia.com/advisories/28698
• http://secunia.com/advisories/29638
• http://security.gentoo.org/glsa/glsa-200801-15.xml
• http://securitytracker.com/id?1019157
• http://sourceforge.net/project/shownotes.php?release_id=565440&group_id=10894
• http://sourceforge.net/tracker/index.php?func=detail&aid=1810264&group_id=10894&atid=110894
• http://sunsolve.sun.com/search/document.do?assetkey=1-26-103197-1
• http://sunsolve.sun.com/search/document.do?assetkey=1-66-200559-1
• http://www.debian.org/security/2008/dsa-1460
• http://www.debian.org/security/2008/dsa-1463
• http://www.mandriva.com/security/advisories?name=MDVSA-2008:004
• http://www.postgresql.org/about/news.905
• http://www.redhat.com/support/errata/RHSA-2008-0038.html
• http://www.redhat.com/support/errata/RHSA-2008-0040.html
• http://www.securityfocus.com/archive/1/485864/100/0/threaded
• http://www.securityfocus.com/archive/1/486407/100/0/threaded
• http://www.securityfocus.com/bid/27163
• http://www.vupen.com/english/advisories/2008/0061

Affected products (57)

• cpe:2.3:a:postgresql:postgresql:7.3:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.3:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.4:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.6:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.8:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.9:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.10:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.11:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.12:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.13:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.14:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.15:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.16:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.3.19:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.3:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.4:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.5:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.6:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.7:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.8:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.9:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.10:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.11:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.12:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.13:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.14:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.16:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:7.4.17:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:8.0:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:8.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:8.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:8.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:8.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:8.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:postgresql:postgresql:8.0.7:*:*:*:*:*:*:*

More vulnerabilities in Postgresql

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• CVE-2002-1399 — Critical (CVSS 10.0): Unknown vulnerability in cash_out and possibly other functions in PostgreSQL 7.2.1 and earlier, and possibly later…
• CVE-2015-0244 — Critical (CVSS 9.8): PostgreSQL before 9.0.19, 9.1.x before 9.1.15, 9.2.x before 9.2.10, 9.3.x before 9.3.6, and 9.4.x before 9.4.1 does not…
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