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Caldera Systems Security Advisory: mgetty /tmp problems

Jan 16, 2001, 20:06 (0 Talkback[s])

Date: Mon, 15 Jan 2001 17:08:22 -0700
From: Caldera Support Info sup-info@LOCUTUS4.CALDERASYSTEMS.COM
To: BUGTRAQ@SECURITYFOCUS.COM
Subject: Caldera Systems Security Advisory


                   Caldera Systems, Inc.  Security Advisory

Subject:                mgetty /tmp problems
Advisory number:        CSSA-2001-002.0
Issue date:             2001 January, 12
Cross reference:

1. Problem Description

There is a /tmp/ file problem in the fax reception code of mgetty which could allow determined attackers to overwrite system files.

2. Vulnerable Versions

   System                       Package

   OpenLinux Desktop 2.3        All packages previous to
                                mgetty-1.1.22_Aug17-9

   OpenLinux eServer 2.3.1      All packages previous to
   and OpenLinux eBuilder       mgetty-1.1.22_Aug17-9

   OpenLinux eDesktop 2.4       All packages previous to
                                mgetty-1.1.22_Aug17-9
3. Solution

Workaround:

none

The proper solution is to upgrade to the fixed packages

4. OpenLinux Desktop 2.3

4.1 Location of Fixed Packages

The upgrade packages can be found on Caldera's FTP site at:

ftp://ftp.calderasystems.com/pub/updates/OpenLinux/2.3/current/RPMS/

The corresponding source code package can be found at:

ftp://ftp.calderasystems.com/pub/updates/OpenLinux/2.3/current/SRPMS

4.2 Verification

ab0c2a2536d93e78da9e3dbad00358b4 RPMS/mgetty-1.1.22_Aug17-9.i386.rpm
eb3a13c3898303078d18f6d6cf5b8ad6 SRPMS/mgetty-1.1.22_Aug17-9.src.rpm

4.3 Installing Fixed Packages

Upgrade the affected packages with the following commands:

rpm -Fhv mgetty-1.1.22_Aug17-9.i386.rpm

5. OpenLinux eServer 2.3.1 and OpenLinux eBuilder for ECential 3.0

5.1 Location of Fixed Packages

The upgrade packages can be found on Caldera's FTP site at:

ftp://ftp.calderasystems.com/pub/updates/eServer/2.3/current/RPMS/

The corresponding source code package can be found at:

ftp://ftp.calderasystems.com/pub/updates/eServer/2.3/current/SRPMS

5.2 Verification

e590735d575c46ab2035ff16dedafaa9 RPMS/mgetty-1.1.22_Aug17-9.i386.rpm
eb3a13c3898303078d18f6d6cf5b8ad6 SRPMS/mgetty-1.1.22_Aug17-9.src.rpm

5.3 Installing Fixed Packages

Upgrade the affected packages with the following commands:

rpm -Fhv mgetty-1.1.22_Aug17-9.i386.rpm

6. OpenLinux eDesktop 2.4

6.1 Location of Fixed Packages

The upgrade packages can be found on Caldera's FTP site at:

ftp://ftp.calderasystems.com/pub/updates/eDesktop/2.4/current/RPMS/

The corresponding source code package can be found at:

ftp://ftp.calderasystems.com/pub/updates/eDesktop/2.4/current/SRPMS

6.2 Verification

8f229df2ee1cf6a95c632ed24750aab9 RPMS/mgetty-1.1.22_Aug17-9.i386.rpm
eb3a13c3898303078d18f6d6cf5b8ad6 SRPMS/mgetty-1.1.22_Aug17-9.src.rpm

6.3 Installing Fixed Packages

Upgrade the affected packages with the following commands:

rpm -Fhv mgetty-1.1.22_Aug17-9.i386.rpm

7. References

This and other Caldera security resources are located at:

http://www.calderasystems.com/support/security/index.html

This security fix closes Caldera's internal Problem Report 8696.

8. Disclaimer

Caldera Systems, Inc. is not responsible for the misuse of any of the information we provide on this website and/or through our security advisories. Our advisories are a service to our customers intended to promote secure installation and use of Caldera OpenLinux.

9. Acknowledgements

Caldera Systems, Inc. wishes to thank the Team at Immunix, Greg KH at Wirex and Gert Doering for their cooperation.