PostgreSQL SET TIME ZONE Environment Variable Buffer Overflow Vulnerability

BID:6613

Info

PostgreSQL SET TIME ZONE Environment Variable Buffer Overflow Vulnerability

Bugtraq ID: 6613
Class: Boundary Condition Error
CVE: CVE-2002-1402
Remote: No
Local: Yes
Published: Aug 19 2002 12:00AM
Updated: Jul 11 2009 07:17PM
Credit: Vulnerability discovery credited to Mordred Labs <[email protected]>.
Vulnerable: PostgreSQL PostgreSQL 7.2.2
+ Mandriva Linux Mandrake 9.0
+ Turbolinux Turbolinux Server 8.0
+ Turbolinux Turbolinux Server 7.0
+ Turbolinux Turbolinux Workstation 8.0
PostgreSQL PostgreSQL 7.2.1
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + Debian Linux 3.0
+ Gentoo Linux 0.7
+ Gentoo Linux 0.5
PostgreSQL PostgreSQL 7.2
+ Mandriva Linux Mandrake 8.2 ppc
 + Mandriva Linux Mandrake 8.2
+ SuSE Linux 8.0 i386
 + SuSE Linux 8.0
PostgreSQL PostgreSQL 7.1.3
+ Redhat Linux 7.2
+ SuSE Linux 7.3 sparc
 + SuSE Linux 7.3 ppc
 + SuSE Linux 7.3 i386
 + SuSE Linux 7.3
+ Trustix Secure Linux 1.5
+ Trustix Secure Linux 1.2
+ Trustix Secure Linux 1.1
PostgreSQL PostgreSQL 7.1.2
+ Mandriva Linux Mandrake 8.1 ia64
 + Mandriva Linux Mandrake 8.1
PostgreSQL PostgreSQL 7.1.1
PostgreSQL PostgreSQL 7.1
PostgreSQL PostgreSQL 7.0.3
+ Mandriva Linux Mandrake 8.0 ppc
 + Mandriva Linux Mandrake 8.0
+ SuSE Linux 7.1 x86
 + SuSE Linux 7.1 sparc
 + SuSE Linux 7.1 ppc
 + SuSE Linux 7.1 alpha
 + SuSE Linux 7.1
PostgreSQL PostgreSQL 7.0.2
+ MandrakeSoft Single Network Firewall 7.2
+ Mandriva Linux Mandrake 7.2
+ Wirex Immunix OS 7.0
+ Wirex Immunix OS 7+
 PostgreSQL PostgreSQL 6.5.3
+ Wirex Immunix OS 6.2
PostgreSQL PostgreSQL 6.3.2
Not Vulnerable: PostgreSQL PostgreSQL 7.2.3
PostgreSQL PostgreSQL 7.2.2
+ Mandriva Linux Mandrake 9.0
+ Turbolinux Turbolinux Server 8.0
+ Turbolinux Turbolinux Server 7.0
+ Turbolinux Turbolinux Workstation 8.0

Discussion

PostgreSQL SET TIME ZONE Environment Variable Buffer Overflow Vulnerability

It has been reported that a problem with the SET TIME ZONE environment variable exists in PostgreSQL. Through the SET TIME ZONE environment variable, a local user could potentially deny service, or execute code with PostgreSQL user privileges.

Exploit / POC

PostgreSQL SET TIME ZONE Environment Variable Buffer Overflow Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] &lt;mailto:[email protected]&gt;.

Solution / Fix

PostgreSQL SET TIME ZONE Environment Variable Buffer Overflow Vulnerability

Solution:
Gentoo Linux has recommended that users who are running dev-db/postgresql-7.2.1-r2 and earlier to update their systems using the following commands. Further details are provided in the referenced advisory.

emerge rsync
emerge postgresql
emerge clean

Debian has released an advisory with fixes. See the attached advisory (DSA 165-1) for details on obtaining fixes.

Conectiva Linux has fixes available. Further information is available in the referenced advisory (CLA-2002:524).

S.u.S.E. has released an advisory. Further upgrading instructions are available in the referenced advisory (SuSE-SA:2002:038).

Red Hat has released advisories (RHSA-2003:001-16 and RHSA-2003:010-10) which address this and other issues. Please see the attached advisories for details on obtaining and applying fixes.

Mandrake has made fixes available. See referenced advisory MDKSA-2002:062-1 for additional details.

Trustix Secure Linux has released an advisory (TSLSA-2003-0004) which addresses this and other PostgreSQL issues. Users are advised to upgrade as soon as possible.

WireX has released advisory IMNX-2003-7+-005-01 to address this issue.


PostgreSQL PostgreSQL 6.5.3

PostgreSQL PostgreSQL 7.0.2

PostgreSQL PostgreSQL 7.0.3

PostgreSQL PostgreSQL 7.1.3

PostgreSQL PostgreSQL 7.2

PostgreSQL PostgreSQL 7.2.1

PostgreSQL PostgreSQL 7.2.2

References

PostgreSQL SET TIME ZONE Environment Variable Buffer Overflow Vulnerability

References:

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