CWE
399
Advisory Published
Updated

CVE-2007-4772

First published: Wed Jan 09 2008(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
PostgreSQL JDBC Driver>=7.4<7.4.19
PostgreSQL JDBC Driver>=8.0<8.0.15
PostgreSQL JDBC Driver>=8.1<8.1.11
PostgreSQL JDBC Driver>=8.2<8.2.6
TCL tcl\/tk<8.4.17
Debian GNU/Linux=3.1
Ubuntu Linux=6.06
Ubuntu Linux=6.10
Ubuntu Linux=7.04
Ubuntu Linux=7.10
PostgreSQL>=7.4<7.4.19
PostgreSQL>=8.0<8.0.15
PostgreSQL>=8.1<8.1.11
PostgreSQL>=8.2<8.2.6
Tcl/Tk<8.4.17
Debian Linux=3.1
Ubuntu=6.06
Ubuntu=7.04
Ubuntu=7.10
Ubuntu=6.10

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2007-4772?

    CVE-2007-4772 is classified as a denial of service vulnerability due to its potential to cause an infinite loop.

  • How do I fix CVE-2007-4772?

    To fix CVE-2007-4772, update to PostgreSQL version 8.2.6 or later, or upgrade Tcl to version 8.4.17 or later.

  • Which software versions are affected by CVE-2007-4772?

    CVE-2007-4772 affects PostgreSQL versions 7.4 prior to 7.4.19, 8.0 prior to 8.0.15, 8.1 prior to 8.1.11, and 8.2 prior to 8.2.6, as well as Tcl before 8.4.17.

  • Can CVE-2007-4772 be exploited remotely?

    Yes, CVE-2007-4772 can be exploited by remote attackers through crafted regular expressions.

  • What are the potential impacts of CVE-2007-4772?

    The potential impacts of CVE-2007-4772 include service outages and degraded performance due to denial of service.

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