- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200801-17 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Netkit FTP Server: Denial of Service Date: January 29, 2008 Bugs: #199206 ID: 200801-17 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Netkit FTP Server contains a Denial of Service vulnerability. Background ========== net-ftp/netkit-ftpd is the Linux Netkit FTP server with optional SSL support. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-ftp/netkit-ftpd < 0.17-r7 >= 0.17-r7 Description =========== Venustech AD-LAB discovered that an FTP client connected to a vulnerable server with passive mode and SSL support can trigger an fclose() function call on an uninitialized stream in ftpd.c. Impact ====== A remote attacker can send specially crafted FTP data to a server with passive mode and SSL support, causing the ftpd daemon to crash. Workaround ========== Disable passive mode or SSL. Resolution ========== All Netkit FTP Server users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-ftp/netkit-ftpd-0.17-r7" References ========== [ 1 ] CVE-2007-6263 http://cve.mitre.org/cgi-bin/cvename.cgi...-2007-6263 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200801-17.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security (at) gentoo (dot) org [email concealed] or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2008 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.7 (GNU/Linux) iQEVAwUBR5+yEzvRww8BFPxFAQKaAQf9Gat2RW+1JUmz3dpRLzj2EgmwxSqCbiuW myfr9PspFCLTg1U4h7CdY11ce/IGUC6JojXne/x4GSE97tFWp1hJ5gN/sQPytUaV 1PsAIMbpI8CVw69NhGLbU1Q2vaF21pAUUs1UaVOneiLfeDL9C4cr9DZ87UV2Hb5p c8SbNNk23B2c+y5nL0yKEw4/TgC3btx6+MZJcHQScG1Zi92BtQrzHuScyFt+YuvE IjHQjqtXL5WqoHdu944gruwepK+jHy1c2d3sg6IYw609uDJYs2s/OlaJhFsWDpV8 5uNVbfqnWPWpYx9kDBgGa6dYNh/eypAh2Ld16jIOkYJYiABrDwPsIA== =L6BM -----END PGP SIGNATURE----- [ reply ]
