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Slackware: 2004-154-01 Moderate: mod_ssl Remote Code Execution Risk

slackware
Calendar Grey June 2, 2004
Dist Slackware Esm H88
Recent updates to mod_ssl for Slackware tackle a critical buffer overflow flaw designed to thwart potential remote code execution threats.
New mod_ssl packages are available for Slackware 8.1, 9.0, 9.1, and -current to fix a security issue

Summary

Here are the details from the Slackware 9.1 ChangeLog: Wed Jun 2 11:28:17 PDT 2004 patches/packages/mod_ssl-2.8.18_1.3.31-i486-1.tgz: Upgraded to mod_ssl-2.8.18-1.3.31. This fixes a buffer overflow that may allow remote attackers to execute arbitrary code via a client certificate with a long subject DN, if mod_ssl is configured to trust the issuing CA: *) Fix buffer overflow in "SSLOptions +FakeBasicAuth" implementation if the Subject-DN in the client certificate exceeds 6KB in length. For more details, see: https://www.cve.org/CVERecord?id=CVE-CAN-2004-0488 (* Security fix *) Other changes: Make the sample keys .new so as not to overwrite existing server keys. However, any existing mod_ssl package will have these listed as non-config files, and will still remove and replace these upon upgrade. You'll have to save your config files one more time... sorry).

Topics%20covered

Topics Covered

security advisory moderate buffer overflow remote code execution apache slackware mod_ssl

Where Find New Packages

Updated packages for Slackware 8.1:
Updated packages for Slackware 9.0:
Updated packages for Slackware 9.1:
Updated packages for Slackware -current:

MD5 Signatures

Slackware 8.1 packages: 5746a612882fb1ba946305e34fc8dd45 apache-1.3.31-i386-1.tgz d4930240294413471df9128dcd1e71ee mod_ssl-2.8.18_1.3.31-i386-1.tgz cee32e839211a37b0081615b4112b87f php-4.3.6-i386-1.tgz
Slackware 9.0 packages: 6366a8951a42536c99d9f926bd7ed4c9 apache-1.3.31-i386-1.tgz dff6235ef0f46b4ab77aefa989e1b3f7 mod_ssl-2.8.18_1.3.31-i386-1.tgz eaa0c69981f0aa8cc6b2d4ef0269481c php-4.3.6-i386-1.tgz
Slackware 9.1 packages: 5fbeac17051bcf7e41446d7b7a7a82be apache-1.3.31-i486-1.tgz 6a96640c9beb79dde305ddb22e36509e mod_ssl-2.8.18_1.3.31-i486-1.tgz 007c48e42d292819b6cdc66e2e8334e0 php-4.3.6-i486-1.tgz
Slackware -current packages: 5d69e97123241842eafc701c8bd6af88 apache-1.3.31-i486-2.tgz 020e5253fdd9f48ed163ad331e7b05fc mod_ssl-2.8.18_1.3.31-i486-1.tgz 07bcba5e37538f16941141c43006cec1 php-4.3.6-i486-4.tgz

Severity
important
Lowest
Low
Medium
High
Critical

Topics%20covered

Topics Covered

security advisory moderate buffer overflow remote code execution apache slackware mod_ssl

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Installation Instructions

Installation instructions: First, stop apache: # apachectl stop IMPORTANT: Backup any keys/certificates you wish to save for mod_ssl (in /etc/apache/ssl.*) Next, upgrade these packages as root: # upgradepkg apache-1.3.31-i486-1.tgz # upgradepkg mod_ssl-2.8.18_1.3.31-i486-1.tgz # upgradepkg php-4.3.6-i486-1.tgz If necessary, restore any mod_ssl config files. Finally, restart apache: # apachectl start Or, if you're running a secure server with mod_ssl: # apachectl startssl

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