Mehrere Probleme in MIT Kerberos 5
ID: | 200904-09 |
Distribution: | Gentoo |
Plattformen: | Keine Angabe |
Datum: | Do, 9. April 2009, 00:52 |
Referenzen: | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0844
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0845 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0847 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0846 |
Applikationen: | MIT Kerberos |
Originalnachricht |
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--nextPart7252807.cuTIg7MoEG Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200904-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: MIT Kerberos 5: Multiple vulnerabilities Date: April 08, 2009 Bugs: #262736, #263398 ID: 200904-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilites in MIT Kerberos 5 might allow remote unauthenticated users to execute arbitrary code with root privileges. Background ========== MIT Kerberos 5 is a suite of applications that implement the Kerberos network protocol. kadmind is the MIT Kerberos 5 administration daemon, KDC is the Key Distribution Center. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-crypt/mit-krb5 < 1.6.3-r6 >= 1.6.3-r6 Description =========== Multiple vulnerabilities have been reported in MIT Kerberos 5: * A free() call on an uninitialized pointer in the ASN.1 decoder when decoding an invalid encoding (CVE-2009-0846). * A buffer overread in the SPNEGO GSS-API application, reported by Apple Product Security (CVE-2009-0844). * A NULL pointer dereference in the SPNEGO GSS-API application, reported by Richard Evans (CVE-2009-0845). * An incorrect length check inside an ASN.1 decoder leading to spurious malloc() failures (CVE-2009-0847). Impact ====== A remote unauthenticated attacker could exploit the first vulnerability to cause a Denial of Service or, in unlikely circumstances, execute arbitrary code on the host running krb5kdc or kadmind with root privileges and compromise the Kerberos key database. Exploitation of the other vulnerabilities might lead to a Denial of Service in kadmind, krb5kdc, or other daemons performing authorization against Kerberos that utilize GSS-API or an information disclosure. Workaround ========== There is no known workaround at this time. Resolution ========== All MIT Kerberos 5 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-crypt/mit-krb5-1.6.3-r6" References ========== [ 1 ] CVE-2009-0844 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0844 [ 2 ] CVE-2009-0845 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0845 [ 3 ] CVE-2009-0846 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0846 [ 4 ] CVE-2009-0847 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0847 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200904-09.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@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2009 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 --nextPart7252807.cuTIg7MoEG Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.10 (GNU/Linux) iQIcBAABAgAGBQJJ3Sk5AAoJECaaHo/OfoM5OwUQAMXORJjqGnS8UZJn48zZ1sz2 +LOYOxJxL0EY0aS9SDM/Snh9RBciJyqPox8RdnwD6Id2pB57xLUnv+5h6/IomwsZ NJ+kK3/5innKD322OT9mYUbGjWqym012qLAW7htOxNSNdi1Cb8FvNq3fcJ+41sOd CIqclJB5PnIyMpsip3QlzPYO1UPr1pzosG2C69r23h4xtqtivcv7ksOWtm7dUEfc ZgFeQ+5gUed1/BA9tcxyej1akrioO3u6/vdua8yd4itxEdmok2UWaODgkrlKUKt5 82JJ9CE0V8iEfw7UmeQ8ygoKF3aRMCo1CL9kcbkHt6AeGkOyBM14lWQnOT7+AF14 w85v61f4dgM7hKKhyphAl3h08LVo9yQ6yP2orUxE7P4v7fSZhSqN5/stpxjzfk+8 6sUYH7/H/aixl6yF5RAzNFeX7F+FT8jw9QwtBnsGUHjwqKwCUajHL8WaYk4JZPg/ Tp0r5OGIdCnPIdWK1yUvVJ0mny3wzKKmjMG65gQBrvG8NykGMr8+cNMmcBsoyeF0 /+/i7QJXvWFH5Mag2RHNJPQAXhEV8inJsQ3cILxY2/FzbVpeYuOyFDw3uLeiWIhn lzRFD3UbM3BlMsz3gkk4pMLFWNTMcTKYRqNgxxNbcEF6uhpqDMA6NhYGbsf6Mgu0 HagAhmS5XLaCONsnQRKq =3kos -----END PGP SIGNATURE----- --nextPart7252807.cuTIg7MoEG-- |