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Fencer Vulns
medium 4.0

CVE-2007-4772 json

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 b…

published 2008-01-09 18 y ago modified 2026-06-16 4 mo ago also EUVD-2007-4753

cvss
4.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.8%
EPSS 3.8% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

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 context-dependent attackers to cause a denial of service (infinite loop) via a crafted regular expression.

Patch / fix

  • postgresql postgresql 7.4.19, 8.0.15, 8.1.11, 8.2.6
  • tcl tcl/tk 8.4.17
  • tcltk RHEL 2.1 8.3.3-75
  • tcltk RHEL 3 8.3.5-92.8
  • tk RHEL 2.1 8.3.3-75
  • tk RHEL 3 8.3.5-92.8
  • tcl RHEL 2.1 8.3.3-75
  • tcl RHEL 3 8.3.5-92.8
  • tix RHEL 2.1 8.2.0b1-75
  • tix RHEL 3 1:8.1.4-92.8

red hat advisories RHSA-2008:0134RHSA-2013:0122RHSA-2008:0040RHSA-2008:0038

  • postgresql94 SLES for SAP 11 SP4, SLES 11 SP4, SLED 11 SP4 9.4.6-0.14.3
  • postgresql94-libs SLES for SAP 11 SP4, SLES 11 SP4, SLED 11 SP4 +1 more 9.4.6-0.14.3
  • postgresql94 SLES for SAP 12 SP1, SLES for SAP 12, SLES 12 SP1 +3 more 9.4.6-7.2
  • postgresql94-libs SLES for SAP 12 SP1, SLES for SAP 12, SLES 12 SP1 +5 more 9.4.6-7.1
  • postgresql93 SLES for SAP 12, SLES 12, SLED 12 9.3.11-14.2
  • postgresql93-libs SLE Software Development Kit 12 9.3.11-14.1

suse advisories SUSE-SU-2016:0677-1SUSE-SU-2016:0555-1SUSE-SU-2016:0539-1

  • postgresql94 openSUSE Tumbleweed 9.4.10-1.1
  • postgresql93 openSUSE Tumbleweed 9.3.15-1.1
  • postgresql95 openSUSE Tumbleweed 9.5.4-1.2

opensuse advisories openSUSE-SU-2024:10030-1openSUSE-SU-2024:10256-1openSUSE-SU-2024:10273-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2007-4772 updated cvss 1.5

postgresql DoS via infinite loop in regex NFA optimization code

  • Red Hat Enterprise Linux 4 tcl
    affected: no fix planned “Will not fix”
  • Red Hat Application Stack v1 for Enterprise Linux AS (v.4) postgresql 8.1.11-1.el4s1.1, postgresql-pl 8.1.11-1.el4s1.1, postgresql-tcl 8.1.11-1.el4s1.1, postgresql-libs 8.1.11-1.el4s1.1, postgresql-test 8.1.11-1.el4s1.1, postgresql-python 8.1.11-1.el4s1.1, +2 more Red Hat Application Stack v1 for Enterprise Linux ES (v.4) postgresql 8.1.11-1.el4s1.1, postgresql-pl 8.1.11-1.el4s1.1, postgresql-tcl 8.1.11-1.el4s1.1, postgresql-libs 8.1.11-1.el4s1.1, postgresql-test 8.1.11-1.el4s1.1, postgresql-python 8.1.11-1.el4s1.1, +2 more
    fixed: vendor fix RHSA-2008:0040
  • Red Hat Desktop version 3 itcl 3.2-92.8, tclx 8.3-92.8, tk 8.3.5-92.8, tcl 8.3.5-92.8, tix 8.1.4-92.8, tcltk 8.3.5-92.8, +1 more
    fixed: vendor fix RHSA-2008:0134
  • Red Hat Enterprise Linux (v. 5 server) tcl 8.4.13-6.el5, tcl-html 8.4.13-6.el5, postgresql 8.1.11-1.el5_1.1, postgresql-pl 8.1.11-1.el5_1.1, postgresql-tcl 8.1.11-1.el5_1.1, postgresql-libs 8.1.11-1.el5_1.1, +4 more
    fixed: vendor fix RHSA-2008:0038
  • Red Hat Enterprise Linux AS (Advanced Server) version 2.1 itcl 3.2-75, tclx 8.3-75, tk 8.3.3-75, tcl 8.3.3-75, tcllib 1.0-75, tcltk 8.3.3-75, +2 more Red Hat Enterprise Linux AS version 3 itcl 3.2-92.8, tclx 8.3-92.8, tk 8.3.5-92.8, tcl 8.3.5-92.8, tix 8.1.4-92.8, tcltk 8.3.5-92.8, +1 more
    fixed: vendor fix RHSA-2008:0134
  • Red Hat Enterprise Linux AS version 4 postgresql 7.4.19-1.el4_6.1, postgresql-pl 7.4.19-1.el4_6.1, postgresql-tcl 7.4.19-1.el4_6.1, postgresql-jdbc 7.4.19-1.el4_6.1, postgresql-libs 7.4.19-1.el4_6.1, postgresql-test 7.4.19-1.el4_6.1, +3 more Red Hat Enterprise Linux Desktop (v. 5 client) tcl 8.4.13-6.el5, tcl-html 8.4.13-6.el5, postgresql 8.1.11-1.el5_1.1, postgresql-tcl 8.1.11-1.el5_1.1, postgresql-libs 8.1.11-1.el5_1.1, postgresql-python 8.1.11-1.el5_1.1, +1 more Red Hat Enterprise Linux Desktop version 4 postgresql 7.4.19-1.el4_6.1, postgresql-pl 7.4.19-1.el4_6.1, postgresql-tcl 7.4.19-1.el4_6.1, postgresql-jdbc 7.4.19-1.el4_6.1, postgresql-libs 7.4.19-1.el4_6.1, postgresql-test 7.4.19-1.el4_6.1, +3 more Red Hat Enterprise Linux Desktop Workstation (v. 5 client) tcl 8.4.13-6.el5, postgresql 8.1.11-1.el5_1.1, postgresql-pl 8.1.11-1.el5_1.1, postgresql-test 8.1.11-1.el5_1.1, postgresql-server 8.1.11-1.el5_1.1
    fixed: vendor fix RHSA-2008:0038
  • Red Hat Enterprise Linux ES version 2.1 itcl 3.2-75, tclx 8.3-75, tk 8.3.3-75, tcl 8.3.3-75, tcllib 1.0-75, tcltk 8.3.3-75, +2 more Red Hat Enterprise Linux ES version 3 itcl 3.2-92.8, tclx 8.3-92.8, tk 8.3.5-92.8, tcl 8.3.5-92.8, tix 8.1.4-92.8, tcltk 8.3.5-92.8, +1 more
    fixed: vendor fix RHSA-2008:0134
  • Red Hat Enterprise Linux ES version 4 postgresql 7.4.19-1.el4_6.1, postgresql-pl 7.4.19-1.el4_6.1, postgresql-tcl 7.4.19-1.el4_6.1, postgresql-jdbc 7.4.19-1.el4_6.1, postgresql-libs 7.4.19-1.el4_6.1, postgresql-test 7.4.19-1.el4_6.1, +3 more
    fixed: vendor fix RHSA-2008:0038
show 4 more
  • Red Hat Enterprise Linux WS version 2.1 itcl 3.2-75, tclx 8.3-75, tk 8.3.3-75, tcl 8.3.3-75, tcllib 1.0-75, tcltk 8.3.3-75, +2 more Red Hat Enterprise Linux WS version 3 itcl 3.2-92.8, tclx 8.3-92.8, tk 8.3.5-92.8, tcl 8.3.5-92.8, tix 8.1.4-92.8, tcltk 8.3.5-92.8, +1 more
    fixed: vendor fix RHSA-2008:0134
  • Red Hat Enterprise Linux WS version 4 postgresql 7.4.19-1.el4_6.1, postgresql-pl 7.4.19-1.el4_6.1, postgresql-tcl 7.4.19-1.el4_6.1, postgresql-jdbc 7.4.19-1.el4_6.1, postgresql-libs 7.4.19-1.el4_6.1, postgresql-test 7.4.19-1.el4_6.1, +3 more
    fixed: vendor fix RHSA-2008:0038
  • Red Hat Linux Advanced Workstation 2.1 itcl 3.2-75, tclx 8.3-75, tk 8.3.3-75, tcl 8.3.3-75, tcllib 1.0-75, tcltk 8.3.3-75, +2 more
    fixed: vendor fix RHSA-2008:0134
  • Red Hat Application Stack v2 for Enterprise Linux (v.5) postgresql 8.2.6-1.el5s2, postgresql-tcl 8.2.6-1.el5s2, postgresql-libs 8.2.6-1.el5s2, postgresql-test 8.2.6-1.el5s2, postgresql-pltcl 8.2.6-1.el5s2, postgresql-plperl 8.2.6-1.el5s2, +4 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.81% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • sourceforge.net http://sourceforge.net/tracker/index.php?func=detail&aid=1810264&group_id=10894&atid=110894 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

Classification

Weakness
  • CWE-399 Resource Management Errors
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.