PostgreSQL cursor buffer overflow

postgresql-cursor-bo (19188)

Medium Risk

Description:

PostgreSQL is vulnerable to a buffer overflow, caused by improper bounds checking when the plpgsql cursor contains too many parameters. By declaring a large amount of PL/pgSQL cursor variables, a remote attacker could overflow a buffer.

Platforms Affected:

• Canonical, Ubuntu 4.10
• Conectiva, Linux 10
• Debian, Debian Linux 3.0
• Gentoo, Linux
• MandrakeSoft, Mandrake Linux 10.0
• MandrakeSoft, Mandrake Linux 10.0 AMD64
• MandrakeSoft, Mandrake Linux 10.1
• MandrakeSoft, Mandrake Linux 10.1 X86_64
• MandrakeSoft, Mandrake Linux Corporate Server 2.1
• MandrakeSoft, Mandrake Linux Corporate Server 2.1 X86_64
• MandrakeSoft, Mandrake Linux Corporate Server 3.0
• MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
• PostgreSQL, PostgreSQL 7.2
• PostgreSQL, PostgreSQL 7.2.1
• PostgreSQL, PostgreSQL 7.2.2
• PostgreSQL, PostgreSQL 7.2.3
• PostgreSQL, PostgreSQL 7.2.4
• PostgreSQL, PostgreSQL 7.2.5
• PostgreSQL, PostgreSQL 7.2.6
• PostgreSQL, PostgreSQL 7.2.7
• PostgreSQL, PostgreSQL 7.3
• PostgreSQL, PostgreSQL 7.3.1
• PostgreSQL, PostgreSQL 7.3.2
• PostgreSQL, PostgreSQL 7.3.3
• PostgreSQL, PostgreSQL 7.3.4
• PostgreSQL, PostgreSQL 7.3.5
• PostgreSQL, PostgreSQL 7.3.6
• PostgreSQL, PostgreSQL 7.3.7
• PostgreSQL, PostgreSQL 7.3.8
• PostgreSQL, PostgreSQL 7.3.9
• PostgreSQL, PostgreSQL 7.4
• PostgreSQL, PostgreSQL 7.4.1
• PostgreSQL, PostgreSQL 7.4.2
• PostgreSQL, PostgreSQL 7.4.3
• PostgreSQL, PostgreSQL 7.4.4
• PostgreSQL, PostgreSQL 7.4.5
• PostgreSQL, PostgreSQL 7.4.6
• PostgreSQL, PostgreSQL 7.4.7
• PostgreSQL, PostgreSQL 8.0
• RedHat, Enterprise Linux 2.1 WS
• RedHat, Enterprise Linux 2.1 AS
• RedHat, Enterprise Linux 2.1 ES
• RedHat, Enterprise Linux 3 Desktop
• RedHat, Enterprise Linux 3 AS
• RedHat, Enterprise Linux 3 ES
• RedHat, Enterprise Linux 3 WS
• RedHat, Enterprise Linux 4 WS
• RedHat, Enterprise Linux 4 AS
• RedHat, Enterprise Linux 4 ES
• RedHat, Enterprise Linux 4 Desktop
• RedHat, Enterprise Linux Desktop 4.0
• RedHat, Linux Advanced Workstation 2.1 Itanium
• SuSE, SuSE Linux 8.2
• SuSE, SuSE Linux 9.0
• SuSE, SuSE Linux 9.1
• SuSE, SuSE Linux 9.2
• SuSE, SuSE Linux 9.3
• Turbolinux, Turbolinux 10 Desktop
• Turbolinux, Turbolinux 10 F...
• Turbolinux, Turbolinux 10 Server
• Turbolinux, Turbolinux 7 Server
• Turbolinux, Turbolinux 7 Workstation
• Turbolinux, Turbolinux 8 Server
• Turbolinux, Turbolinux 8 Workstation
• Turbolinux, Turbolinux Home
• Turbolinux, Turbolinux Appliance Server 1.0 Hosting Ed
• Turbolinux, Turbolinux Appliance Server 1.0 Workgroup Ed

Remedy:

Upgrade to the latest version of PostgreSQL (7.2.7, 7.3.9, 7.4.7, or 8.0.1 or later), available from the PostgreSQL FTP Web page. See References.

For Debian GNU/Linux 3.0 (woody):
Upgrade to the latest version of postgresql (7.2.1-2woody8 or later), as listed in DSA-683-1. See References.

For Red Hat Linux:
Upgrade to the latest postgresql package, as listed below. Refer to RHSA-2005:138-15, RHSA-2005:141-06, or RHSA-2005:150-04 for more information. See References.

For Conectiva Linux:
Upgrade to the latest Postgresql package, as listed below. Refer to Conectiva Linux Announcement CLSA-2005:1008 for more information. See References.

Conectiva Linux 10.0: 7.4.2-57056U10_1cl or later

For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 2005-02-08 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

Consequences:

Other

References:

• CIAC Information Bulletin: P-139, PostgreSQL Vulnerabilities at http://www.ciac.org/ciac/bulletins/p-139.shtml.
• Conectiva Linux Security Announcement CLSA-2005:1008, Fix for several PostgreSQL vulnerabilities at http://distro.conectiva.com/atualizacoes/index.php?id=a&anuncio=001008.
• PostgreSQL FTP Web page, FTP Browser at http://wwwmaster.postgresql.org/ftp/.
• SGI Security Advisory 20050207-01-U, SGI Advanced Linux Environment 3 Security Update #27 at ftp://patches.sgi.com/support/free/security/advisories/20050203-01-U.asc.
• BID-12417: PostgreSQL Multiple Remote Vulnerabilities
• CVE-2005-0245: Buffer overflow in gram.y for PostgreSQL 8.0.0 and earlier may allow attackers to execute arbitrary code via a large number of arguments to a refcursor function (gram.y), which leads to a heap-based buffer overflow, a different vulnerability than CVE-2005-0247.
• DSA-683: postgresql -- buffer overflows
• GLSA-200502-08: PostgreSQL: Multiple vulnerabilities
• MDKSA-2005:040: Updated PostgreSQL packages fix multiple vulnerabilities
• RHSA-2005-138: postgresql security update
• RHSA-2005-141: rh-postgresql security update
• RHSA-2005-150: postgresql security update
• SA12948: PostgreSQL Multiple Vulnerabilities
• SUSE-SA:2005:036: sudo: race condition arbitrary code execution
• SUSE-SR:2005:005: SUSE Security Summary Report
• SUSE-SR:2005:006: SUSE Security Summary Report
• SUSE-SR:2005:007: SUSE Security Summary Report

Reported:

Feb 01, 2005

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