security advisoryremote exploitdebian
An attacker, able to create files on a remote server, could potentially execute arbitrary code with the privileges of the user invoking hsftp.. Debian Security Advisory DSA 447-1 This email address is being protected from spambots. You need JavaScript enabled to view it. Debian -- Security Information Matt Zimmerman February 22nd, 2004 Debian -- Debian security FAQ - -------------------------------------------------------------------------- Package : hsftp Vulnerability : format string Problem-Type : remote Debian-specific: no CVE Id : CAN-2004-0159 During an audit, Ulf Harnhammar discovered a format string vulnerability in hsftp. This vulnerability could be exploited by an attacker able to create files on a remote server with carefully crafted names, to which a user would connect using hsftp. When the user requests a directory listing, particular bytes in memory could be overwritten, potentially allowing arbitrary code to be executed with the privileges of the user invoking hsftp. Note that while hsftp is installed setuid root, it only uses these privileges to acquire locked memory, and then relinquishes them. For the current stable distribution (woody) this problem has been fixed in version 1.11-1woody1. For the unstable distribution (sid), this problem will be fixed soon. We recommend that you update your hsftp package. Upgrade Instructions - -------------------- wget url will fetch the file for you dpkg -i file.deb will install the referenced file. If you are using the apt-get package manager, use the line for sources.list as given below: apt-get update will update the internal database apt-get upgrade will install corrected packages You may use an automated update by adding the resources from the footer to the proper configuration. Debian GNU/Linux 3.0 alias woody - -------------------------------- Source archives: Size/MD5 checksum: 595 9cefb21b2527ae0bf6cf813edd470320 Size/MD5 checksum: 18509a62d6a8ca1b885e78b84d23978af15d Size/MD5 checksum: 50859 0b9d3eff1b9fcc2ab44a970c3535f777 Alpha architecture: Size/MD5 checksum: 19582 a7ae51d2bc5102f8a92a8d5e640ab198 ARM architecture: Size/MD5 checksum: 17410 bf432d578eb24f94ae423a38a8380f7c Intel IA-32 architecture: Size/MD5 checksum: 17106 b638f3ab3bd577a8c287a77b57933ea1 Intel IA-64 architecture: Size/MD5 checksum: 22808 2673a0bd78ec8341da16998b51feefcf HP Precision architecture: Size/MD5 checksum: 18200 11c371b92821e461ac0179f3b7edfeb3 Motorola 680x0 architecture: Size/MD5 checksum: 16406 928c44582067a9b264f62d32408a9a46 Big endian MIPS architecture: Size/MD5 checksum: 17676 a6e150e08063dba73ff5a44f75f30a83 PowerPC architecture: Size/MD5 checksum: 17620 ca2e00d4af42d2b19f48a2b71455b167 IBM S/390 architecture: Size/MD5 checksum: 17686 366193042afb69b518ef20c1ae08444d Sun Sparc architecture: Size/MD5 checksum: 17070 8788ef38808a6271c2a1ff2a1da6adff These files will probably be moved into the stable distribution on its next revision. - --------------------------------------------------------------------------------- For apt-get: deb Debian -- Security Information stable/updates main For dpkg-ftp: dists/stable/updates/main Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it. Package info: `apt-cache show ' and https://www.debian.org/distrib/packages . Debian DSA 447-2 addresses a buffer overflow in hsftp, allowing potential remote code execution. Update recommended for safety.. Debian Advisory, hsftp Security, Format String Issue, Remote Exploit. . Severity: Critical. LinuxSecurity.com Team
Feb 23, 2004
•Critical
Debian
Refine advisories
