security advisorybuffer overflowremote exploit
Leon Juranic discovered that BNC, an IRC session bouncing proxy, does not always protect buffers from being overwritten. This could exploited by a malicious IRC server to overflow a buffer of limited size and execute arbitrary code on the client host.. -------------------------------------------------------------------------- Debian Security Advisory DSA 595-1 This email address is being protected from spambots. You need JavaScript enabled to view it. Debian -- Security Information Martin Schulze November 24th, 2004 Debian -- Debian security FAQ -------------------------------------------------------------------------- Package : bnc Vulnerability : buffer overflow Problem-Type : remote Debian-specific: no CVE ID : CAN-2004-1052 Leon Juranic discovered that BNC, an IRC session bouncing proxy, does not always protect buffers from being overwritten. This could exploited by a malicious IRC server to overflow a buffer of limited size and execute arbitrary code on the client host. For the stable distribution (woody) this problem has been fixed in version 2.6.4-3.3. This package does not exist in the testing or unstable distributions. We recommend that you upgrade your bnc 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: 543 a1450f3cf6b80026ec903f15f6585ae8 Size/MD5 checksum: 3062 64db73a4d5fb93cd8d039ba13eb4b3dc Size/MD5 checksum: 44333 1767b5bfdfd1c7a4a51a4114a326d014 Alpha architecture: Size/MD5checksum: 30828 e8dd80226ae437e1f3d9bbcb694467a7 ARM architecture: Size/MD5 checksum: 26770 c0ee6446147dc99465cebd1bda6dda60 Intel IA-32 architecture: Size/MD5 checksum: 26266 c98bb8052220d7c869fd691059cc4b33 Intel IA-64 architecture: Size/MD5 checksum: 36164 d7ae31f108e9b82678c06695f241e046 HP Precision architecture: Size/MD5 checksum: 29878 53cb733232eff24419c98ce67d45d056 Motorola 680x0 architecture: Size/MD5 checksum: 25844 d6298a6dd44eae95a2a84d38f0bc09d1 Big endian MIPS architecture: Size/MD5 checksum: 29236 bd291995072ad9e3172c4f2683412e7c Little endian MIPS architecture: Size/MD5 checksum: 29262 fd73461c1b0e65fa78424fc3f9b9631b PowerPC architecture: Size/MD5 checksum: 27718 4058b8b6d4bb98614941f6587e6f8f94 IBM S/390 architecture: Size/MD5 checksum: 27232 99d2ddd170aa5b8425b9c2a0c5d74b2a Sun Sparc architecture: Size/MD5 checksum: 29906 4276473db008684a75644ce7512d9a59 These files will probably be moved into the stable distribution on its next update. --------------------------------------------------------------------------------- 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 . Critical advisory DSA 595-1 details buffer overflow risk in BNC, exposing remote clients to code execution threats.. buffer overflow, remote exploit, bnc update, debian security. . Severity: Critical. LinuxSecurity.com Team
Nov 24, 2004
•Critical
Debian
Refine advisories
