RH6.1: wu-ftpd (RHSA-1999:043-01)

Posted by LinuxSecurity.com Team

Various computer security groups have reported security problems in the WU-FTPD daemon, the FTP server shipped with all versions of Red Hat Linux.


Red Hat, Inc. Security Advisory
Package	wu-ftpd

Synopsis	Security problems in WU- FTPD

Advisory ID	RHSA-1999:043-01

Issue Date	1999-10-21

Updated on

Keywords	wu-ftp security remote exploit

Cross references	N/A

1. Topic: Various computer security groups have reported security problems in the WU-FTPD daemon, the FTP server shipped with all versions of Red Hat Linux. 2. Problem description: Three vulnerabilities have been identified in WU-FTPD and other ftp daemons based on the WU-FTPD source code. Vulnerability #1: MAPPING_CHDIR Buffer Overflow Vulnerability #2: Message File Buffer Overflow Remote and local intruders may be able exploit these vulnerabilities to execute arbitrary code as the user running the ftpd daemon, usually root. Vulnerability #3: SITE NEWER Consumes Memory Remote and local intruders who can connect to the FTP server can cause the server to consume excessive amounts of memory, preventing normal system operation. If intruders can create files on the system, they may be able exploit this vulnerability to execute arbitrary code as the user running the ftpd daemon, usually root. 3. Bug IDs fixed:(http://developer.Red Hat.com/bugzilla for more info) N/A 4. Relevant releases/architectures: Red Hat Linux 6.1, for i386, alpha and sparc 5. Obsoleted by: None 6. Conflicts with: None 7. RPMs required: Intel: ftp://updates.Red Hat.com/6.1/i386/ wu-ftpd- 2.6.0-1.i386.rpm Alpha: ftp://updates.Red Hat.com/6.0/alpha wu-ftpd- 2.6.0-1.alpha.rpm SPARC: ftp://updates.Red Hat.com/6.0/sparc wu-ftpd- 2.6.0-1.sparc.rpm Source: ftp://updates.Red Hat.com/6.1/SRPMS wu-ftpd- 2.6.0-1.src.rpm Architecture neutral: ftp://updates.Red Hat.com/6.1/noarch/ 8. Solution: For each RPM for your particular architecture, run: rpm -Uvh filename where filename is the name of the RPM. 9. Verification: MD5 sum Package Name ------------------------------------------------------------------------- dcd5d04df11849007aa3c4fb398cfbfb i386/wu-ftpd-2.6.0-1.i386.rpm a0b3a1a0dcfbdfd1443d0aecd960e907 alpha/wu-ftpd-2.6.0-1.alpha.rpm 7511f1f96b3044207cbe11d34f75ff7a sparc/wu-ftpd-2.6.0-1.sparc.rpm 7e30ea42e82908752b943621580f6f1c SRPMS/wu-ftpd-2.6.0-1.src.rpm These packages are GPG signed by Red Hat Inc. for security. Our key is available at: http://www.Red Hat.com/corp/contac t.html You can verify each package with the following command: rpm --checksig filename If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command: rpm --checksig --nogpg filename 10. References: