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Ärende: [TL-Security-Announce] wu-ftpd TLSA2000014-1
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Message-ID: <Pine.LNX.4.20.0007191730070.4704-100000@eva.dev.us.tlan>
Date: Wed, 19 Jul 2000 17:31:35 -0700
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___________________________________________________________________________
TurboLinux Security Announcement
Package: wu-ftpd-2.6.0 and earlier
Date: Wednesday July 19 17:00 PDT 2000
Affected TurboLinux versions: 4.0 (TCS/TLS) and earlier
Vulnerability Type: remote root exploit via SITE EXEC
TurboLinux Advisory ID#: TLSA2000014-1
Cert Advisory: CA-2000-13
___________________________________________________________________________
A security hole was discovered in the package mentioned avobe. Please
update the package in your installation as soon as possible or
disable the service.
___________________________________________________________________________
1. Problem Summary
A buffer overrun exists in wu-ftpd versions prior to 2.6.1. Due to
improper bounds checking, SITE EXEC may enable remote root execution,
without having any local user account required.
2. Impact
An attacker can use this exploit to remotely execute code on the
machine where wu-ftpd is being used. This could easily lead to a
remote root 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/4.0/security/wu-ftpd-2.6.1-1.i386.rpm
The source RPM can be downloaded here:
ftp://ftp.turbolinux.com/pub/updates/4.0/SRPMS/wu-ftpd-2.6.1-1.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
- ---------------------------------------------------------------------------
0052bd2cd2e7f1fa1abadc5b2dd63a12 wu-ftpd-2.6.1-1.i386.rpm
3c914377251bba7bda0f34358e6a4576 wu-ftpd-2.6.1-1.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:
rt-security@turbolinux.com
___________________________________________________________________________
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
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