drucken bookmarks versenden konfigurieren admin pdf Sicherheit: DOS-Attacke auf squid
Name: |
DOS-Attacke auf squid
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ID: |
TLSA2002003 |
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Distribution: |
TurboLinux |
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Plattformen: |
Keine Angabe |
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Datum: |
Sa, 26. Januar 2002, 12:00 |
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Referenzen: |
Keine Angabe |
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Applikationen: |
Squid |
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Originalnachricht |
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___________________________________________________________________________
Turbolinux Security Announcement
Package : squid Vulnerable Packages: All versions previous to 2.4.STABLE2-2 Date: Thu Jan 24 18:32:20 PST 2002
Affected Turbolinux versions:TL 6.x, All Turbolinux versions 2.4.STABLE2-1 and earlier
Turbolinux Advisory ID#: TLSA2002003
Credits: Vladimir Ivaschenko http://www.squid-cache.org/bugs/show_bug.cgi?id=233 ___________________________________________________________________________
A security hole was discovered in the package mentioned above. Please update the package in your installation as soon as possible. ___________________________________________________________________________
1. Problem Summary
Squid has a flaw in the code to handle FTP PUT commands: when a mkdir-only request was done squid would detect an internal error and exit. Squid script cannot use the restart command. Because when stop command isn't finished, start command is started.
2. Impact
Vulnerable.
3. Solution
Update the package from our ftp server by running the following command:
rpm -Uvh ftp://ftp.turbolinux.com/pub/updates/6.0/security/<rpm>
Where <rpm> is the following:
squid-2.4.STABLE2-3.i386.rpm
The source RPM can be downloaded here:
ftp://ftp.turbolinux.com/pub/updates/6.0/SRPMS/ squid-2.4.STABLE2-3.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 --------------------------------------------------------------------------- 8d163dfdb90a42c46a5c169b2dc0d4f4 squid-2.4.STABLE2-3.i386.rpm c7ee0677b88db07507fbde69b696bec1 squid-2.4.STABLE2-3.src.rpm ___________________________________________________________________________
These packages are GPG signed by Turbolinux for security. Our key is available here:
http://www.turbolinux.com/security/tlgpgkey2002-01-09.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/7.0/security/ for TL7.0 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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_______________________________________________ TL-Security-Announce mailing list TL-Security-Announce@www.turbolinux.com http://www.turbolinux.com/mailman/listinfo/tl-security-announce
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