Mehrere Probleme in krb5
ID: | RHSA-2008:0182-01 |
Distribution: | Red Hat |
Plattformen: | Red Hat Enterprise Linux |
Datum: | Di, 18. März 2008, 21:11 |
Referenzen: | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0062
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0063 |
Applikationen: | MIT Kerberos |
Originalnachricht |
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Critical: krb5 security update Advisory ID: RHSA-2008:0182-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0182.html Issue date: 2008-03-18 CVE Names: CVE-2008-0062 CVE-2008-0063 ===================================================================== 1. Summary: Updated krb5 packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4.5 Extended Update Support. This update has been rated as having critical security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat Enterprise Linux AS version 4.5.z - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux ES version 4.5.z - i386, ia64, x86_64 3. Description: Kerberos is a network authentication system which allows clients and servers to authenticate to each other through use of symmetric encryption and a trusted third party, the KDC. A flaw was found in the way the MIT Kerberos Authentication Service and Key Distribution Center server (krb5kdc) handled Kerberos v4 protocol packets. An unauthenticated remote attacker could use this flaw to crash the krb5kdc daemon, disclose portions of its memory, or possibly execute arbitrary code using malformed or truncated Kerberos v4 protocol requests. (CVE-2008-0062, CVE-2008-0063) This issue only affected krb5kdc with Kerberos v4 protocol compatibility enabled, which is the default setting on Red Hat Enterprise Linux 4. Kerberos v4 protocol support can be disabled by adding "v4_mode=none" (without the quotes) to the "[kdcdefaults]" section of /var/kerberos/krb5kdc/kdc.conf. Red Hat would like to thank MIT for reporting these issues. All krb5 users are advised to update to these erratum packages which contain backported fixes to correct these issues. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188 5. Bugs fixed (http://bugzilla.redhat.com/): 432620 - CVE-2008-0062 krb5: uninitialized pointer use in krb5kdc 432621 - CVE-2008-0063 krb5: possible leak of sensitive data from krb5kdc using krb4 request 6. Package List: Red Hat Enterprise Linux AS version 4.5.z: Source: ftp://updates.redhat.com/enterprise/4AS-4.5.z/en/os/SRPMS/krb5-1.3.4-49.el4_5.1.src.rpm i386: krb5-debuginfo-1.3.4-49.el4_5.1.i386.rpm krb5-devel-1.3.4-49.el4_5.1.i386.rpm krb5-libs-1.3.4-49.el4_5.1.i386.rpm krb5-server-1.3.4-49.el4_5.1.i386.rpm krb5-workstation-1.3.4-49.el4_5.1.i386.rpm ia64: krb5-debuginfo-1.3.4-49.el4_5.1.i386.rpm krb5-debuginfo-1.3.4-49.el4_5.1.ia64.rpm krb5-devel-1.3.4-49.el4_5.1.ia64.rpm krb5-libs-1.3.4-49.el4_5.1.i386.rpm krb5-libs-1.3.4-49.el4_5.1.ia64.rpm krb5-server-1.3.4-49.el4_5.1.ia64.rpm krb5-workstation-1.3.4-49.el4_5.1.ia64.rpm ppc: krb5-debuginfo-1.3.4-49.el4_5.1.ppc.rpm krb5-debuginfo-1.3.4-49.el4_5.1.ppc64.rpm krb5-devel-1.3.4-49.el4_5.1.ppc.rpm krb5-libs-1.3.4-49.el4_5.1.ppc.rpm krb5-libs-1.3.4-49.el4_5.1.ppc64.rpm krb5-server-1.3.4-49.el4_5.1.ppc.rpm krb5-workstation-1.3.4-49.el4_5.1.ppc.rpm s390: krb5-debuginfo-1.3.4-49.el4_5.1.s390.rpm krb5-devel-1.3.4-49.el4_5.1.s390.rpm krb5-libs-1.3.4-49.el4_5.1.s390.rpm krb5-server-1.3.4-49.el4_5.1.s390.rpm krb5-workstation-1.3.4-49.el4_5.1.s390.rpm s390x: krb5-debuginfo-1.3.4-49.el4_5.1.s390.rpm krb5-debuginfo-1.3.4-49.el4_5.1.s390x.rpm krb5-devel-1.3.4-49.el4_5.1.s390x.rpm krb5-libs-1.3.4-49.el4_5.1.s390.rpm krb5-libs-1.3.4-49.el4_5.1.s390x.rpm krb5-server-1.3.4-49.el4_5.1.s390x.rpm krb5-workstation-1.3.4-49.el4_5.1.s390x.rpm x86_64: krb5-debuginfo-1.3.4-49.el4_5.1.i386.rpm krb5-debuginfo-1.3.4-49.el4_5.1.x86_64.rpm krb5-devel-1.3.4-49.el4_5.1.x86_64.rpm krb5-libs-1.3.4-49.el4_5.1.i386.rpm krb5-libs-1.3.4-49.el4_5.1.x86_64.rpm krb5-server-1.3.4-49.el4_5.1.x86_64.rpm krb5-workstation-1.3.4-49.el4_5.1.x86_64.rpm Red Hat Enterprise Linux ES version 4.5.z: Source: ftp://updates.redhat.com/enterprise/4ES-4.5.z/en/os/SRPMS/krb5-1.3.4-49.el4_5.1.src.rpm i386: krb5-debuginfo-1.3.4-49.el4_5.1.i386.rpm krb5-devel-1.3.4-49.el4_5.1.i386.rpm krb5-libs-1.3.4-49.el4_5.1.i386.rpm krb5-server-1.3.4-49.el4_5.1.i386.rpm krb5-workstation-1.3.4-49.el4_5.1.i386.rpm ia64: krb5-debuginfo-1.3.4-49.el4_5.1.i386.rpm krb5-debuginfo-1.3.4-49.el4_5.1.ia64.rpm krb5-devel-1.3.4-49.el4_5.1.ia64.rpm krb5-libs-1.3.4-49.el4_5.1.i386.rpm krb5-libs-1.3.4-49.el4_5.1.ia64.rpm krb5-server-1.3.4-49.el4_5.1.ia64.rpm krb5-workstation-1.3.4-49.el4_5.1.ia64.rpm x86_64: krb5-debuginfo-1.3.4-49.el4_5.1.i386.rpm krb5-debuginfo-1.3.4-49.el4_5.1.x86_64.rpm krb5-devel-1.3.4-49.el4_5.1.x86_64.rpm krb5-libs-1.3.4-49.el4_5.1.i386.rpm krb5-libs-1.3.4-49.el4_5.1.x86_64.rpm krb5-server-1.3.4-49.el4_5.1.x86_64.rpm krb5-workstation-1.3.4-49.el4_5.1.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://www.redhat.com/security/team/key/#package 7. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0062 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0063 http://www.redhat.com/security/updates/classification/#critical 8. Contact: The Red Hat security contact is |