-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- Debian Security Advisory DSA 1189-1 security@xxxxxxxxxx http://www.debian.org/security/ Moritz Muehlenhoff October 4th, 2006 http://www.debian.org/security/faq - -------------------------------------------------------------------------- Package : openssh-krb5 Vulnerability : several Problem-Type : remote Debian-specific: no CVE ID : CVE-2006-4924 CVE-2006-5051 Several remote vulnerabilities have been discovered in OpenSSH, a free implementation of the Secure Shell protocol, which may lead to denial of service and potentially the execution of arbitrary code. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2006-4924 Tavis Ormandy of the Google Security Team discovered a denial of service vulnerability in the mitigation code against complexity attacks, which might lead to increased CPU consumption until a timeout is triggered. This is only exploitable if support for SSH protocol version 1 is enabled. CVE-2006-5051 Mark Dowd discovered that insecure signal handler usage could potentially lead to execution of arbitrary code through a double free. The Debian Security Team doesn't believe the general openssh package without Kerberos support to be exploitable by this issue. However, due to the complexity of the underlying code we will issue an update to rule out all eventualities. For the stable distribution (sarge) these problems have been fixed in version 3.8.1p1-7sarge1. For the unstable distribution (sid) these problems have been fixed in version 4.3p2-4 of openssh. openssh-krb5 will soon be converted towards a transitional package against openssh. We recommend that you upgrade your openssh-krb5 packages. 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 3.1 alias sarge - -------------------------------- Source archives: http://security.debian.org/pool/updates/main/o/openssh-krb5/openssh-krb5_3.8.1p1-7sarge1.dsc Size/MD5 checksum: 693 d0a8ac5b868c5f84fd372c9ef597f3a6 http://security.debian.org/pool/updates/main/o/openssh-krb5/openssh-krb5_3.8.1p1-7sarge1.diff.gz Size/MD5 checksum: 167076 1fcdbc92c7a0992711b2dc67b9923ba7 http://security.debian.org/pool/updates/main/o/openssh-krb5/openssh-krb5_3.8.1p1.orig.tar.gz Size/MD5 checksum: 795948 9ce6f2fa5b2931ce2c4c25f3af9ad50d Alpha architecture: http://security.debian.org/pool/updates/main/o/openssh-krb5/ssh-krb5_3.8.1p1-7sarge1_alpha.deb Size/MD5 checksum: 909896 44611f5a619acf0bccdeb366d76f39c5 AMD64 architecture: http://security.debian.org/pool/updates/main/o/openssh-krb5/ssh-krb5_3.8.1p1-7sarge1_amd64.deb Size/MD5 checksum: 773658 dc8335560cead18af3fa4eb52911af92 ARM architecture: http://security.debian.org/pool/updates/main/o/openssh-krb5/ssh-krb5_3.8.1p1-7sarge1_arm.deb Size/MD5 checksum: 689752 18e79d4e27c0ec313147e0951ef6082a HP Precision architecture: http://security.debian.org/pool/updates/main/o/openssh-krb5/ssh-krb5_3.8.1p1-7sarge1_hppa.deb Size/MD5 checksum: 780142 5e692daa057c38f1fa1f0f877824e991 Intel IA-32 architecture: http://security.debian.org/pool/updates/main/o/openssh-krb5/ssh-krb5_3.8.1p1-7sarge1_i386.deb Size/MD5 checksum: 706910 a4eda3cc320f77d2dc1065976086c31f Intel IA-64 architecture: http://security.debian.org/pool/updates/main/o/openssh-krb5/ssh-krb5_3.8.1p1-7sarge1_ia64.deb Size/MD5 checksum: 1004916 91f89e80f1a27f942bd5fe9e7ae2ba3e Motorola 680x0 architecture: http://security.debian.org/pool/updates/main/o/openssh-krb5/ssh-krb5_3.8.1p1-7sarge1_m68k.deb Size/MD5 checksum: 651232 8f41b159434ef7bf3187cd4954e816cc Big endian MIPS architecture: http://security.debian.org/pool/updates/main/o/openssh-krb5/ssh-krb5_3.8.1p1-7sarge1_mips.deb Size/MD5 checksum: 790716 cbc586aa73bcf295cd61f1c09e8015d8 Little endian MIPS architecture: http://security.debian.org/pool/updates/main/o/openssh-krb5/ssh-krb5_3.8.1p1-7sarge1_mipsel.deb Size/MD5 checksum: 793644 3364603438fceb21bffdd3efb4887e0e PowerPC architecture: http://security.debian.org/pool/updates/main/o/openssh-krb5/ssh-krb5_3.8.1p1-7sarge1_powerpc.deb Size/MD5 checksum: 757954 ddb9cbba0e84f84da8e60fcbcbaddbae IBM S/390 architecture: http://security.debian.org/pool/updates/main/o/openssh-krb5/ssh-krb5_3.8.1p1-7sarge1_s390.deb Size/MD5 checksum: 771520 2148d40fa59dc98b94ac6a03ed2c444f Sun Sparc architecture: http://security.debian.org/pool/updates/main/o/openssh-krb5/ssh-krb5_3.8.1p1-7sarge1_sparc.deb Size/MD5 checksum: 694800 9c059e2e4ba232774a522da0a2757f06 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@xxxxxxxxxxxxxxxx Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iD8DBQFFJAvbXm3vHE4uyloRAmqoAKChy0vZr6GVMubikUiysDHN7npstQCdF3dp EYGwpqy2OkwF4WxfJwJX3zs= =SWgg -----END PGP SIGNATURE-----
