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    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.

    Published:Jan 7, 2008
    Last Modified:Apr 23, 2026
    EPS:Jan 9, 2008
    EPSS Score:0.01194
    CVSS Score:6.8

    Affected Products

    Vendor
    Postgresql
    Product
    Postgresql
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Application Stack
    Vendor
    Tcl Tk
    Product
    Tcl Tk

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

    CVE-2026-14671 (CVSS 8.8) — Type confusion in PostgreSQL module "refint" allows an object creator to execute arbitrary code as the operati…
    CVE-2026-6471 (CVSS 7.2) — Missing authorization in PostgreSQL logical decoding allows a non-superuser holding REPLICATION privilege to d…
    CVE-2026-6470 (CVSS 4.3) — Missing authorization in PostgreSQL DDL commands allows an object creator to achieve denial of service against…
    CVE-2026-6469 (CVSS 3.8) — Incorrect ownership assignment in PostgreSQL ALTER TABLE ALTER TYPE command reassigns ownership of dependent s…
    CVE-2026-6464 (CVSS 8.1) — Untrusted data inclusion in PostgreSQL psql COPY may allow a server administrator to elicit execution of data …
    CVE-2026-19385 (CVSS 8.8) — Heap buffer overflow in PostgreSQL pg_dump of long function transform lists allows an object creator to execut…
    CVE-2026-18408 (CVSS 8.8) — Untrusted data inclusion in pg_dump in PostgreSQL allows a malicious superuser of the origin server to inject …
    CVE-2026-18024 (CVSS 4.3) — Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after the end of a…
    CVE-2026-16241 (CVSS 3.8) — Integer underflow in PostgreSQL ECPG allows a database server administrator to achieve temporary denial of ser…
    CVE-2026-16239 (CVSS 8.8) — Type confusion in PostgreSQL "portal"/cursor lifecycle allows a user to execute arbitrary code as the operatin…

    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
    http://www.vupen.com/english/advisories/2008/0109
    http://www.vupen.com/english/advisories/2008/1071/references
    https://exchange.xforce.ibmcloud.com/vulnerabilities/39499
    https://issues.rpath.com/browse/RPL-1768
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9804
    https://usn.ubuntu.com/568-1/
    https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00397.html
    https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00469.html
    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
    http://www.vupen.com/english/advisories/2008/0109
    http://www.vupen.com/english/advisories/2008/1071/references
    https://exchange.xforce.ibmcloud.com/vulnerabilities/39499
    https://issues.rpath.com/browse/RPL-1768
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9804
    https://usn.ubuntu.com/568-1/
    https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00397.html
    https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00469.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High