---

TurboLinux Security Announcement: Package: dump-0.4b11-1 and earlier

Date: Wed, 15 Mar 2000 12:09:33 -0800 (PST)
From: Katie Moussouris [email protected]
To: [email protected]
Subject: [TL-Security-Announce] dump-0.4b11-1 and earlier
TLSA200007-1

TurboLinux Security Announcement

Package: dump-0.4b11-1 and earlier
Date: Wed Mar 15 12:03:18 PST 2000

Affected TurboLinux versions: 6.0.2 and earlier
Vulnerability Type: local buffer overrun
TurboLinux Advisory ID#: TLSA200007-1
BugTraq ID#: 1020
Credits: This vulnerability was posted to the Bugtraq mailing list
by
KimYongJun [email protected] on
February 28, 2000.


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


1. Problem Summary

The dump utility is setuid and setgid root. Previous versions of
dump did not correctly drop the effective gid settings. When passed
an oversized argument to the “-f a” parameters, it will overrun the
stack. If this argument is crafted properly, it may be possible to
replace the instruction pointer or return address on the stack and
execute arbitrary code with the permissions of the process (gid of
root).

2. Impact

An attacker could use this overrun to execute code with the gid
of root, leading to further system compromise.

3. Solution

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

rpm -Fv ftp_path_to_filename

Where ftp_path_to_filename is the following:


ftp://ftp.turbolinux.com/pub/updates/6.0/security/dump-0.4b16-1.i386.rpm

The source rpm can be downloaded here:


ftp://ftp.turbolinux.com/pub/updates/6.0/SRPMS/dump-0.4b16-1.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 checksum of the update before you
install:

  MD5 sum                               Package Name

0a3777c176c1580fe44f03acfdc70f59 dump-0.4b16-1.i386.rpm
64f95b579e6a813f2f207f1817d8c5e8 dump-0.4b16-1.src.rpm

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: [email protected]


Subscribe to the TurboLinux Security Mailing lists:
TL-security – A moderated list for discussing security issues in
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