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TI-2007-04619 Aliases CVE-2007-4772GHSA-x3q3-v77f-cg26

The regular expression parser in TCL before 8.4.17, as used in PostgreSQL 8.2 before…

Priority LOW 25CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Partial
Fix status
Partial Red Hat: 17 fixed, 1 without a fix

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-399 and the CVSS impact.

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.

Why it matters now

EPSS 0.03812 90th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 4 advisoriesRed Hat: 17 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*7.4 to before 7.4.19; 8.0 to before 8.0.15; 8.1 to before 8.1.11; 8.2 to before 8.2.6VulnerablePostgreSQL
cpe:2.3:a:tcl:tcl\/tk:*:*:*:*:*:*:*:*before 8.4.17VulnerableTCL
cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:*3.1VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:*6.06VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:6.10:*:*:*:*:*:*:*6.10VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:7.04:*:*:*:*:*:*:*7.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:*7.10VulnerableCanonical
  • cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* Versions 7.4 to before 7.4.19; 8.0 to before 8.0.15; 8.1 to before 8.1.11; 8.2 to before 8.2.6 Vulnerable ·PostgreSQL
  • cpe:2.3:a:tcl:tcl\/tk:*:*:*:*:*:*:*:* Versions before 8.4.17 Vulnerable ·TCL
  • cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:* Versions 3.1 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:* Versions 6.06 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:6.10:*:*:*:*:*:*:* Versions 6.10 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:7.04:*:*:*:*:*:*:* Versions 7.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:* Versions 7.10 Vulnerable ·Canonical

Remediation

Red Hat 4 advisories

  • RHSA-2013:0122 Released 2013-01-08 · Red Hat rating Moderate
    tcl security and bug fix update
    • Red Hat Enterprise Linux (v. 5 server) tcl-8.4.13-6.el5, tcl-8.4.13-6.el5.i386, tcl-8.4.13-6.el5.ia64 +9
    • Red Hat Enterprise Linux Desktop (v. 5 client) tcl-8.4.13-6.el5, tcl-8.4.13-6.el5.i386, tcl-html-8.4.13-6.el5 +1
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) tcl-8.4.13-6.el5, tcl-devel-8.4.13-6.el5, tcl-devel-8.4.13-6.el5.i386
  • RHSA-2008:0134 Released 2008-02-21 · Red Hat rating Moderate
    tcltk security update
    • Red Hat Desktop version 3 expect-5.38.0-92.8, expect-5.38.0-92.8.i386, expect-devel-5.38.0-92.8 +16
    • Red Hat Enterprise Linux AS (Advanced Server) version 2.1 expect-5.38.0-75.i386, expect-5.38.0-75.ia64, itcl-3.2-75.i386 +12
    • Red Hat Enterprise Linux AS version 3 expect-5.38.0-92.8, expect-5.38.0-92.8.i386, expect-5.38.0-92.8.ia64 +34
    • Red Hat Enterprise Linux ES version 2.1 expect-5.38.0-75.i386, itcl-3.2-75.i386, tcl-8.3.3-75.i386 +5
    • Red Hat Enterprise Linux ES version 3 expect-5.38.0-92.8, expect-5.38.0-92.8.i386, expect-5.38.0-92.8.ia64 +25
    • Red Hat Enterprise Linux WS version 2.1 expect-5.38.0-75.i386, itcl-3.2-75.i386, tcl-8.3.3-75.i386 +5
    • Red Hat Enterprise Linux WS version 3 expect-5.38.0-92.8, expect-5.38.0-92.8.i386, expect-5.38.0-92.8.ia64 +25
    • Red Hat Linux Advanced Workstation 2.1 expect-5.38.0-75.ia64, itcl-3.2-75.ia64, tcl-8.3.3-75.ia64 +5
  • RHSA-2008:0040 Released 2008-02-01 · Red Hat rating Moderate
    postgresql security update
    • Red Hat Application Stack v1 for Enterprise Linux AS (v.4) postgresql-8.1.11-1.el4s1.1, postgresql-8.1.11-1.el4s1.1.i386, postgresql-contrib-8.1.11-1.el4s1.1 +17
    • Red Hat Application Stack v1 for Enterprise Linux ES (v.4) postgresql-8.1.11-1.el4s1.1, postgresql-8.1.11-1.el4s1.1.i386, postgresql-contrib-8.1.11-1.el4s1.1 +17
Show 1 more Red Hat advisories
  • RHSA-2008:0038 Released 2008-01-11 · Red Hat rating Moderate
    postgresql security update
    • Red Hat Enterprise Linux (v. 5 server) postgresql-8.1.11-1.el5_1.1, postgresql-8.1.11-1.el5_1.1.i386, postgresql-8.1.11-1.el5_1.1.ia64 +37
    • Red Hat Enterprise Linux AS version 4 postgresql-7.4.19-1.el4_6.1, postgresql-7.4.19-1.el4_6.1.i386, postgresql-7.4.19-1.el4_6.1.ia64 +41
    • Red Hat Enterprise Linux Desktop (v. 5 client) postgresql-8.1.11-1.el5_1.1, postgresql-8.1.11-1.el5_1.1.i386, postgresql-contrib-8.1.11-1.el5_1.1 +9
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) postgresql-8.1.11-1.el5_1.1, postgresql-devel-8.1.11-1.el5_1.1, postgresql-devel-8.1.11-1.el5_1.1.i386 +6
    • Red Hat Enterprise Linux Desktop version 4 postgresql-7.4.19-1.el4_6.1, postgresql-7.4.19-1.el4_6.1.i386, postgresql-contrib-7.4.19-1.el4_6.1 +19
    • Red Hat Enterprise Linux ES version 4 postgresql-7.4.19-1.el4_6.1, postgresql-7.4.19-1.el4_6.1.i386, postgresql-7.4.19-1.el4_6.1.ia64 +30
    • Red Hat Enterprise Linux WS version 4 postgresql-7.4.19-1.el4_6.1, postgresql-7.4.19-1.el4_6.1.i386, postgresql-7.4.19-1.el4_6.1.ia64 +30

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 4AffectedNo fix planned: Will not fix
Red Hat Application Stack v1 for Enterprise Linux AS (v.4)Fixed RHSA-2008:0040
Red Hat Application Stack v1 for Enterprise Linux ES (v.4)Fixed RHSA-2008:0040
Red Hat Desktop version 3Fixed RHSA-2008:0134
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2008:0038, RHSA-2013:0122
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 Fixed RHSA-2008:0134
Red Hat Enterprise Linux AS version 3Fixed RHSA-2008:0134
Red Hat Enterprise Linux AS version 4Fixed RHSA-2008:0038
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2008:0038, RHSA-2013:0122
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2008:0038, RHSA-2013:0122
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2008:0038
Red Hat Enterprise Linux ES version 2.1Fixed RHSA-2008:0134
Red Hat Enterprise Linux ES version 3Fixed RHSA-2008:0134
Red Hat Enterprise Linux ES version 4Fixed RHSA-2008:0038
Red Hat Enterprise Linux WS version 2.1Fixed RHSA-2008:0134
Red Hat Enterprise Linux WS version 3Fixed RHSA-2008:0134
Red Hat Enterprise Linux WS version 4Fixed RHSA-2008:0038
Red Hat Linux Advanced Workstation 2.1Fixed RHSA-2008:0134
Not affected: 1 product
  • Red Hat Application Stack v2 for Enterprise Linux (v.5)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2007-4772
  2. 2026-10-03 Alias added: GHSA-x3q3-v77f-cg26
  3. 2026-10-23 EPSS moved to the 90th–95th percentile
  4. 2026-10-25 EPSS moved to the 50th–90th percentile
  5. 2026-10-28 EPSS moved to the 90th–95th percentile

References

Exploit 1

Advisory 29

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences