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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2004.0659 -- Debian Security Advisory DSA 569-1 New netkit-telnet-ssl packages fix denial of service 19 October 2004 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: netkit-telnet-ssl Publisher: Debian Operating System: Debian GNU/Linux 3.0 Impact: Denial of Service Execute Arbitrary Code/Commands Access: Remote/Unauthenticated CVE Names: CAN-2004-0911 Ref: ESB-2004.0619 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - -------------------------------------------------------------------------- Debian Security Advisory DSA 569-1 security@debian.org http://www.debian.org/security/ Martin Schulze October 18th, 2004 http://www.debian.org/security/faq - - -------------------------------------------------------------------------- Package : netkit-telnet-ssl Vulnerability : invalid free(3) Problem-Type : remote Debian-specific: yes CVE ID : CAN-2004-0911 Debian Bug : 273694 Michal Zalewski discovered a bug in the netkit-telnet server (telnetd) whereby a remote attacker could cause the telnetd process to free an invalid pointer. This causes the telnet server process to crash, leading to a straightforward denial of service (inetd will disable the service if telnetd is crashed repeatedly), or possibly the execution of arbitrary code with the privileges of the telnetd process (by default, the 'telnetd' user). For the stable distribution (woody) this problem has been fixed in version 0.17.17+0.1-2woody2 For the unstable distribution (sid) this problem has been fixed in version 0.17.24+0.1-4. We recommend that you upgrade your netkit-telnet-ssl 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: http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/netkit-telnet-ssl_0.17.17+0.1-2woody2.dsc Size/MD5 checksum: 669 c0333bf798925d74a2b0cd156eb691cc http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/netkit-telnet-ssl_0.17.17+0.1-2woody2.diff.gz Size/MD5 checksum: 8632 d0b418abcc29fc1790ab5aafb6836dd1 http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/netkit-telnet-ssl_0.17.17+0.1.orig.tar.gz Size/MD5 checksum: 167658 faf2d112bc4d44f522bad3bc73da8d6d Alpha architecture: http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnet-ssl_0.17.17+0.1-2woody2_alpha.deb Size/MD5 checksum: 101014 abb3671e001662e6e5166d716ad8bfb6 http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnetd-ssl_0.17.17+0.1-2woody2_alpha.deb Size/MD5 checksum: 56848 bb8b0d77208c7f44c63e95a4f7083e21 ARM architecture: http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnet-ssl_0.17.17+0.1-2woody2_arm.deb Size/MD5 checksum: 85130 a87761b01081e99e8acc94f40f3aa50b http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnetd-ssl_0.17.17+0.1-2woody2_arm.deb Size/MD5 checksum: 48482 cabc1071adeac0c6472dfb10731d6995 Intel IA-32 architecture: http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnet-ssl_0.17.17+0.1-2woody2_i386.deb Size/MD5 checksum: 85456 5f9f99786a8a26c0dcdfacbd2da11383 http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnetd-ssl_0.17.17+0.1-2woody2_i386.deb Size/MD5 checksum: 46586 fee9f04d1a9768f278537e5571300257 Intel IA-64 architecture: http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnet-ssl_0.17.17+0.1-2woody2_ia64.deb Size/MD5 checksum: 123126 5ed1d2854d7e91f90724bebcf590252f http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnetd-ssl_0.17.17+0.1-2woody2_ia64.deb Size/MD5 checksum: 66550 dd096a3593565c983d94730eae09eee9 HP Precision architecture: http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnet-ssl_0.17.17+0.1-2woody2_hppa.deb Size/MD5 checksum: 86484 f8105593d974b60cd6fcb5f23c41a890 http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnetd-ssl_0.17.17+0.1-2woody2_hppa.deb Size/MD5 checksum: 53812 a2a6d0755b21d53714b34d1a3a38450c Motorola 680x0 architecture: http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnet-ssl_0.17.17+0.1-2woody2_m68k.deb Size/MD5 checksum: 81360 2a99b7a46d1e7f4abad46afef6549351 http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnetd-ssl_0.17.17+0.1-2woody2_m68k.deb Size/MD5 checksum: 45370 31cb862bbaefbcc9520834fd7393abfb Big endian MIPS architecture: http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnet-ssl_0.17.17+0.1-2woody2_mips.deb Size/MD5 checksum: 97340 31a847f384aa1410f31785185d52bd75 http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnetd-ssl_0.17.17+0.1-2woody2_mips.deb Size/MD5 checksum: 52136 311f7252452a4b39168a9ead120f71b2 Little endian MIPS architecture: http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnet-ssl_0.17.17+0.1-2woody2_mipsel.deb Size/MD5 checksum: 97156 de9a70f8a3893c6698d001970c863341 http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnetd-ssl_0.17.17+0.1-2woody2_mipsel.deb Size/MD5 checksum: 52116 6086a1e35d1c224ece0083aaf798468a PowerPC architecture: http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnet-ssl_0.17.17+0.1-2woody2_powerpc.deb Size/MD5 checksum: 88072 2b57b6050d961c729870c33346d5c95c http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnetd-ssl_0.17.17+0.1-2woody2_powerpc.deb Size/MD5 checksum: 48690 28bc44df1d4506e0231ece63f1ee8b86 IBM S/390 architecture: http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnet-ssl_0.17.17+0.1-2woody2_s390.deb Size/MD5 checksum: 88562 77152b7fa6062a90eb505216f1d26bab http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnetd-ssl_0.17.17+0.1-2woody2_s390.deb Size/MD5 checksum: 50266 c8deb57a9029c38d2fe5f08d11c8c466 Sun Sparc architecture: http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnet-ssl_0.17.17+0.1-2woody2_sparc.deb Size/MD5 checksum: 89212 7b810e8f0f16651b4c1d0e5bd4142031 http://security.debian.org/pool/updates/main/n/netkit-telnet-ssl/telnetd-ssl_0.17.17+0.1-2woody2_sparc.deb Size/MD5 checksum: 54466 b82619bdb5299873a25cbbedf541ff15 These files will probably be moved into the stable distribution on its next update. - - --------------------------------------------------------------------------------- For apt-get: deb http://security.debian.org/ stable/updates main For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main Mailing list: debian-security-announce@lists.debian.org Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg> - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (GNU/Linux) iD8DBQFBc3D1W5ql+IAeqTIRAmyUAKCSamaYsBVXMGbxDqaTuis6/ycAuACeIFuA ORfQX9l2Iy0JnZSHx/MModQ= =9Org - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBQXReWih9+71yA2DNAQJsLgP+J9x7sYfXT+jfwHfoxIJACPJSZqTjN4gC ZM9oL+0QCNB+m756y1RinqtS+a/oK8uVcCNNEOAydG0dWLkct7iMggfEZxPcRIE8 0gPpxY7FKhxEUaQ5EfWqPgnknHAb0Wcde7JIra5FknEjHCp2fB8UV1rXuBJ76qmJ cfNNsri1zyY= =QYZp -----END PGP SIGNATURE-----