-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Summary Report Announcement ID: SUSE-SR:2005:017 Date: Wed, 13 Jul 2005 11:00:00 +0000 Cross-References: CAN-2005-1278 CAN-2005-1279 CAN-2005-1280 CAN-2005-1127 CAN-2005-1934 CAN-2005-1262 CAN-2005-1269 CAN-2005-0967 CAN-2005-0966 CAN-2005-0965 CAN-2005-0208 CAN-2005-0472 CAN-2005-1848 CAN-2005-2096 CAN-2005-2149 CAN-2005-2148 CAN-2005-1174 MITKRB5-SA-2005-002 CAN-2005-1689 MITKRB5-SA-2005-003 Content of this advisory: 1) Solved Security Vulnerabilities: - tcpdump remote denial of service attack - perl-Net-Server remote denial of service attack - gaim remote denial of service attack - pam_krb5 denial of service attack - dhcpcd remote denial of service attack - perl-Compress-Zlib potential denial of service attack - cacti remote code execution - krb5 remote denial of service attack 2) Pending Vulnerabilities, Solutions, and Work-Arounds: - Acrobat Reader buffer overflow - various new Mozilla and Mozilla Firefox vulnerabilities 3) Authenticity Verification and Additional Information ______________________________________________________________________________ 1) Solved Security Vulnerabilities To avoid flooding mailing lists with SUSE Security Announcements for minor issues, SUSE Security releases weekly summary reports for the low profile vulnerability fixes. The SUSE Security Summary Reports do not list md5 sums or download URLs like the SUSE Security Announcements that are released for more severe vulnerabilities. Fixed packages for the following incidents are already available on our FTP server and via the YaST Online Update. - tcpdump remote denial of service attack Various bugs were fixed in tcpdump that would cause tcpdump to run into infinite loops or crash when analyzing certain specially crafted packets. These bugs are considered security relevant as tcpdump is often used to analyze security relevant network traffic. All SUSE Linux products are affected. This is tracked by the Mitre CVE IDs CAN-2005-1278, CAN-2005-1279, and CAN-2005-1280. - perl-Net-Server remote denial of service attack A format string problem was found in the logging routines of the perl-Net-Server perl module collection. This could lead to a remote attacker being able to crash a server using the perl-Net-Server module. This is tracked by the Mitre CVE ID CAN-2005-1127. SUSE Linux versions 8.2 up to 9.3 are affected by this problem. - gaim remote denial of service attack Following security problems were fixed in the instant messenger gaim, which allowed malicious users to crash other users' gaim client. Mitre CVE IDs and affected products are listed below. - Crashes via malformed MSN malformed message (CAN-2005-1934, CAN-2005-1262, SUSE LINUX >= 9.1). - Crash via specially named file sent via Yahoo (CAN-2005-1269, SUSE LINUX >= 9.1). - Crash via invalid Jabber file transfer request (CAN-2005-0967, SUSE LINUX >= 9.1). - Crash via special IRC messages (CAN-2005-0966, SUSE LINUX >= 9.0). - Crashes via malformed HTML tags (CAN-2005-0965, CAN-2005-0208, CAN-2005-0473). - Crash via malformed SNAC packet sent via AIM/ICQ (CAN-2005-0472, SUSE LINUX <= 9.2). - pam_krb5 denial of service attack Two security-related bugs were fixed in the pam_krb5. The first bug is the use of the wrong UID to change the file-permissions on the ticket file which causes Kerberos to stop working correctly. The second bug can makes the PAM module crash due to a uninitialized variable. Thanks to Ralf Müller for sending us the bug-report and patches. SUSE Linux versions 9.0 up to 9.3, SUSE Linux Enterprise Server 9 and Novell Linux Desktop 9 are affected. - dhcpcd remote denial of service attack This update fixes a denial-of-service bug that can be triggered remotely by sending a malformed package to crash the client. This problem is tracked by the Mitre CVE ID CAN-2005-1848. All SUSE Linux products are affected. - perl-Compress-Zlib potential denial of service attack The perl-Compress-Zlib perl module included a copy of zlib which is vulnerable to a denial of service attack tracked by the Mitre CVE CAN-2005-2096. This update removed the use of the internal copy and now uses the external version of zlib. This affects SUSE Linux versions 9.1 up to 9.3 and SUSE Linux Enterprise Server 9. - cacti remote command injection Various bugs were fixed in cacti, including three security-related bugs: - Cacti Authentication/Addslashes Bypass Vulnerability - Cacti Multiple SQL Injection Vulnerabilities - Cacti Remote Command Execution Vulnerability Note: Please check your config.php file, the new file config.php.rpmnew will have different options. These issue are tracked by the Mitre CVE IDs CAN-2005-2149 and CAN-2005-2148. SUSE Linux versions 9.1 up to 9.3 are affected by this problem. - krb5 remote denial of service The MIT Kerberos implementation is prone to heap corruption due to calling free() on random addresses (CAN-2005-1174, MITKRB5-SA-2005-002) and by calling free() twice on the same block (CAN-2005-1689, MITKRB5-SA-2005-003). Both bugs can be triggered remotely and may have the potential to be exploited to execute arbitrary code. Additionally this update fixes a crash in MIT Kerberos V that is caused while comparing to principals/realms without checking for NULL pointers. There is nothing known about the exploit-ability of this bug. Thanks to Ralf Mueller for sending us the bug-report and patches. Only SUSE Linux Version 9.3 is affected by this problem, all earlier products used the heimdal kerberos implementation which is not affected by this problem. ______________________________________________________________________________ 2) Pending Vulnerabilities, Solutions, and Work-Arounds - Acrobat Reader buffer overflow. A buffer overflow vulnerability was found in the Adobe Acrobat Reader version 5. We are currently building upgrades to version 7 for older products. SUSE Linux version 8.2 up to 9.2, SUSE Linux Enterprise Servers 8 and 9, Novell Linux Desktop 9, Open Enterprise Server 9, SUSE Linux Desktop 1 are affected by this problem. It is tracked by the Mitre CVE ID CAN-2005-1625. - Various new Mozilla and Mozilla Firefox vulnerabilities Various new Mozilla Suite and Mozilla Firefox vulnerabilities were reported. We are preparing updates for these issues currently. ______________________________________________________________________________ 3) Authenticity Verification and Additional Information - Announcement authenticity verification: SUSE security announcements are published via mailing lists and on Web sites. The authenticity and integrity of a SUSE security announcement is guaranteed by a cryptographic signature in each announcement. All SUSE security announcements are published with a valid signature. To verify the signature of the announcement, save it as text into a file and run the command gpg --verify <file> replacing <file> with the name of the file containing the announcement. The output for a valid signature looks like: gpg: Signature made <DATE> using RSA key ID 3D25D3D9 gpg: Good signature from "SuSE Security Team <security@suse.de>" where <DATE> is replaced by the date the document was signed. If the security team's key is not contained in your key ring, you can import it from the first installation CD. To import the key, use the command gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc - Package authenticity verification: SUSE update packages are available on many mirror FTP servers all over the world. While this service is considered valuable and important to the free and open source software community, the authenticity and integrity of a package needs to be verified to ensure that it has not been tampered with. The internal RPM package signatures provide an easy way to verify the authenticity of an RPM package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, replacing <file.rpm> with the filename of the RPM package downloaded. The package is unmodified if it contains a valid signature from build@suse.de with the key ID 9C800ACA. This key is automatically imported into the RPM database (on RPMv4-based distributions) and the gpg key ring of 'root' during installation. You can also find it on the first installation CD and included at the end of this announcement. - SUSE runs two security mailing lists to which any interested party may subscribe: suse-security@suse.com - General Linux and SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an e-mail to <suse-security-subscribe@suse.com>. suse-security-announce@suse.com - SUSE's announce-only mailing list. Only SUSE's security announcements are sent to this list. To subscribe, send an e-mail to <suse-security-announce-subscribe@suse.com>. For general information or the frequently asked questions (FAQ) send mail to <suse-security-info@suse.com> or <suse-security-faq@suse.com>. ===================================================================== SUSE's security contact is <security@suse.com> or <security@suse.de>. The <security@suse.de> public key is listed below. ===================================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, the clear text signature should show proof of the authenticity of the text. SUSE Linux Products GmbH provides no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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