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CVE-2007-4772

16
FAUCET Score

CVE-2007-4772 describes a denial-of-service vulnerability in the regular expression parser of TCL, affecting PostgreSQL versions 8.2.6 and earlier, 8.1.11 and earlier, 8.0.15 and earlier, and 7.4.19 and earlier. An authenticated attacker can trigger an infinite loop by submitting a specially crafted regular expression. This vulnerability has a CVSS score of 4.0, indicating a low severity, with an attack vector over the network, low attack complexity, and a partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.4, < 7.4.19CPE matchmatch criteria
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
>= 8.0, < 8.0.15CPE matchmatch criteria
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
>= 8.1, < 8.1.11CPE matchmatch criteria
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
>= 8.2, < 8.2.6CPE matchmatch criteria
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
< 8.4.17CPE matchmatch criteria
cpe:2.3:a:tcl:tcl\/tk:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

AV:N/AC:L/Au:S/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.84%
Probability of exploitation in next 30 days
EPSS Percentile
89.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0384 is in the 97th percentile among its peer group of 21,957 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 2.1Fixed in: tcltk-0:8.3.3-75
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: tcltk-0:8.3.5-92.8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: postgresql-0:7.4.19-1.el4_6.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: postgresql-0:8.1.11-1.el5_1.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: tcl-0:8.4.13-6.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Web Application Stack for RHEL 4Fixed in: postgresql-0:8.1.11-1.el4s1.1
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: tcl

Vendor Advisories (1)

redhatCVE-2007-4772Moderate

postgresql DoS via infinite loop in regex NFA optimization code

Jan 7, 2008

References

h20000.www2.hp.com / bizsupport/TechSupport/Document.jsp
Broken Link
kb.juniper.net / InfoCenter/index
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2008-02/msg00000.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-02/msg00049.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-02/msg00052.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-02/msg00054.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-02/msg00056.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-03/msg00016.html
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2013-0122.html
Third Party Advisory
secunia.com / advisories/28359
Third Party Advisory
secunia.com / advisories/28376
Third Party Advisory
secunia.com / advisories/28437
Third Party Advisory
secunia.com / advisories/28438
Third Party Advisory
secunia.com / advisories/28454
Third Party Advisory
secunia.com / advisories/28455
Third Party Advisory
secunia.com / advisories/28464
Third Party Advisory
secunia.com / advisories/28477
Third Party Advisory
secunia.com / advisories/28479
Third Party Advisory
secunia.com / advisories/28679
Third Party Advisory
secunia.com / advisories/28698
Third Party Advisory
secunia.com / advisories/29070
Third Party Advisory
secunia.com / advisories/29248
Third Party Advisory
secunia.com / advisories/29638
Third Party Advisory
secunia.com / advisories/30535
Third Party Advisory
security.gentoo.org / glsa/glsa-200801-15.xml
Third Party Advisory
securitytracker.com / id
Third Party AdvisoryVDB Entry
exchange.xforce.ibmcloud.com / vulnerabilities/39497
Third Party AdvisoryVDB Entry
issues.rpath.com / browse/RPL-1768
Broken Link
sourceforge.net / project/shownotes.php
Third Party Advisory
sourceforge.net / tracker/index.php
ExploitThird Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11569
Third Party Advisory
sunsolve.sun.com / search/document.do
Broken Link
sunsolve.sun.com / search/document.do
Broken Link
usn.ubuntu.com / 568-1
Third Party Advisory
redhat.com / archives/fedora-package-announce/2008-January/msg00397.html
Third Party Advisory
redhat.com / archives/fedora-package-announce/2008-January/msg00469.html
Third Party Advisory
debian.org / security/2008/dsa-1460
Third Party Advisory
debian.org / security/2008/dsa-1463
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
postgresql.org / about/news.905
Vendor Advisory
redhat.com / support/errata/RHSA-2008-0038.html
Third Party Advisory
redhat.com / support/errata/RHSA-2008-0040.html
Third Party Advisory
redhat.com / support/errata/RHSA-2008-0134.html
Third Party Advisory
securityfocus.com / archive/1/485864/100/0/threaded
Third Party AdvisoryVDB Entry
securityfocus.com / archive/1/486407/100/0/threaded
Third Party AdvisoryVDB Entry
securityfocus.com / archive/1/493080/100/0/threaded
Third Party AdvisoryVDB Entry
securityfocus.com / bid/27163
PatchThird Party AdvisoryVDB Entry
vmware.com / security/advisories/VMSA-2008-0009.html
Third Party Advisory
vupen.com / english/advisories/2008/0061
Third Party Advisory
vupen.com / english/advisories/2008/0109
Third Party Advisory
vupen.com / english/advisories/2008/1071/references
Third Party Advisory
vupen.com / english/advisories/2008/1744
Broken Link