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Sicherheit: Fehler im Adreßtest-Modus von sendmail
Aktuelle Meldungen Distributionen
Name: Fehler im Adreßtest-Modus von sendmail
ID: TLSA2001003-1
Distribution: TurboLinux
Plattformen: TurboLinux 6.0, TurboLinux 6.1 WorkStation
Datum: Fr, 23. Februar 2001, 12:00
Referenzen: Keine Angabe
Applikationen: Sendmail

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___________________________________________________________________________

TurboLinux Security Announcement


Vulnerable Packages: All versions previous to 8.11.2-5
Date: 02/21/2001 5:00 PDT

Affected TurboLinux versions:TL 6.1 WorkStation,
All TurboLinux versions
6.0.5 and earlier

TurboLinux Advisory ID#: TLSA2001003-1

Credits: Vulnerability discovered by Michal Zalewski
of the Internet for Schools project(IdS).
___________________________________________________________________________

A security hole was discovered in the package mentioned above.
Please update the package in your installation as soon as possible.
___________________________________________________________________________

1. Problem Summary

Sendmail, launched with the -bt command-line switch, enters its special
"address test" mode. Under these conditions, it is vulnerable to a
segmentation fault which can occur when trying to set a class in ad-
dress test mode due to a negative array index.

2. Impact

A user can gain root privileges.

3. Solution

Update the package from our ftp server by running the following command:

rpm -Uvh ftp_path_to_filename

Where ftp_path_to_filename is the following:

ftp://ftp.turbolinux.com/pub/updates/6.0/security/sendmail-8.11.2-5.i386.rpm

The source RPM can be downloaded here:

ftp://ftp.turbolinux.com/pub/updates/6.0/SRPMS/sendmail-8.11.2-5.src.rpm

**Note: You must rebuild and install the RPM if you choose to download
and install the SRPM. Simply installing the SRPM alone WILL NOT CLOSE
THE SECURITY HOLE.

Please verify the MD5 checksums of the updates before you install:

MD5 sum Package Name
---------------------------------------------------------------------------
38eee0653839595aedad386cc8d2346f sendmail-8.11.2-5.i386.rpm
cfe857414b7e3cdbf658a898bd592b71 sendmail-8.11.2-5.src.rpm
___________________________________________________________________________

These packages are GPG signed by TurboLinux for security. Our key
is available here:

http://www.turbolinux.com/security/tlgpgkey.asc

To verify a package, use the following command:

rpm --checksig name_of_rpm

To examine only the md5sum, use the following command:

rpm --checksig --nogpg name_of_rpm

**Note: Checking GPG keys requires RPM 3.0 or higher.

___________________________________________________________________________
You can find more updates on our ftp server:

ftp://ftp.turbolinux.com/pub/updates/6.0/security/ for TL6.0 Workstation
and Server security updates
ftp://ftp.turbolinux.com/pub/updates/4.0/security/ for TL4.0 Workstation
and Server security updates

Our webpage for security announcements:

http://www.turbolinux.com/security

If you want to report vulnerabilities, please contact:

security@turbolinux.com
___________________________________________________________________________

Subscribe to the TurboLinux Security Mailing lists:

TL-security - A moderated list for discussing security issues
TurboLinux products.
Subscribe at http://www.turbolinux.com/mailman/listinfo/tl-security

TL-security-announce - An announce-only mailing list for security updates
and alerts.
Subscribe at:

http://www.turbolinux.com/mailman/listinfo/tl-security-announce

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