Executive Summary
Summary | |
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Title | krb5 security and bug fix update |
Informations | |||
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Name | RHSA-2010:0343 | First vendor Publication | 2010-04-06 |
Vendor | RedHat | Last vendor Modification | 2010-04-06 |
Severity (Vendor) | Important | Revision | 01 |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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Overall CVSS Score | NA | ||
Base Score | NA | Environmental Score | NA |
impact SubScore | NA | Temporal Score | NA |
Exploitabality Sub Score | NA | ||
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:L/Au:S/C:N/I:N/A:P) | |||
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Cvss Base Score | 4 | Attack Range | Network |
Cvss Impact Score | 2.9 | Attack Complexity | Low |
Cvss Expoit Score | 8 | Authentication | Requires single instance |
Calculate full CVSS 2.0 Vectors scores |
Detail
Problem Description: Updated krb5 packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: RHEL Desktop Workstation (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 3. Description: Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and a trusted third party, the Key Distribution Center (KDC). A use-after-free flaw was discovered in the MIT Kerberos administration daemon, kadmind. A remote, authenticated attacker could use this flaw to crash the kadmind daemon. Administrative privileges are not required to trigger this flaw, as any realm user can request information about their own principal from kadmind. (CVE-2010-0629) This update also fixes the following bug: * when a Kerberos client seeks tickets for use with a service, it must contact the Key Distribution Center (KDC) to obtain them. The client must also determine which realm the service belongs to and it typically does this with a combination of client configuration detail, DNS information and guesswork. If the service belongs to a realm other than the client's, cross-realm authentication is required. Using a combination of client configuration and guesswork, the client determines the trust relationship sequence which forms the trusted path between the client's realm and the service's realm. This may include one or more intermediate realms. Anticipating the KDC has better knowledge of extant trust relationships, the client then requests a ticket from the service's KDC, indicating it will accept guidance from the service's KDC by setting a special flag in the request. A KDC which recognizes the flag can, at its option, return a ticket-granting ticket for the next realm along the trust path the client should be following. If the ticket-granting ticket returned by the service's KDC is for use with a realm the client has already determined was in the trusted path, the client accepts this as an optimization and continues. If, however, the ticket is for use in a realm the client is not expecting, the client responds incorrectly: it treats the case as an error rather than continuing along the path suggested by the service's KDC. For this update, the krb5 1.7 modifications which allow the client to trust such KDCs to send them along the correct path, resulting in the client obtaining the tickets it originally desired, were backported to krb 1.6.1 (the version shipped with Red Hat Enterprise Linux 5.5). (BZ#578540) All krb5 users should upgrade to these updated packages, which contain backported patches to correct these issues. All running KDC services must be restarted for the update to take effect. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 576011 - CVE-2010-0629 krb5: kadmind use-after-free remote crash (MITKRB5-SA-2010-003) 578540 - [RFE] Backport referral-chasing code within krb5-1.7 to RHEL5 |
Original Source
Url : https://rhn.redhat.com/errata/RHSA-2010-0343.html |
CWE : Common Weakness Enumeration
% | Id | Name |
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100 % | CWE-416 | Use After Free |
OVAL Definitions
Definition Id: oval:org.mitre.oval:def:20259 | |||
Oval ID: | oval:org.mitre.oval:def:20259 | ||
Title: | DSA-2031-1 krb5 - denial of service | ||
Description: | Sol Jerome discovered that kadmind service in krb5, a system for authenticating users and services on a network, allows remote authenticated users to cause a denial of service (daemon crash) via a request from a kadmin client that sends an invalid API version number. | ||
Family: | unix | Class: | patch |
Reference(s): | DSA-2031-1 CVE-2010-0629 | Version: | 5 |
Platform(s): | Debian GNU/Linux 5.0 | Product(s): | krb5 |
Definition Synopsis: | |||
Definition Id: oval:org.mitre.oval:def:22037 | |||
Oval ID: | oval:org.mitre.oval:def:22037 | ||
Title: | RHSA-2010:0343: krb5 security and bug fix update (Important) | ||
Description: | Use-after-free vulnerability in kadmin/server/server_stubs.c in kadmind in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3 allows remote authenticated users to cause a denial of service (daemon crash) via a request from a kadmin client that sends an invalid API version number. | ||
Family: | unix | Class: | patch |
Reference(s): | RHSA-2010:0343-01 CESA-2010:0343 CVE-2010-0629 | Version: | 4 |
Platform(s): | Red Hat Enterprise Linux 5 CentOS Linux 5 | Product(s): | krb5 |
Definition Synopsis: | |||
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Definition Id: oval:org.mitre.oval:def:23005 | |||
Oval ID: | oval:org.mitre.oval:def:23005 | ||
Title: | ELSA-2010:0343: krb5 security and bug fix update (Important) | ||
Description: | Use-after-free vulnerability in kadmin/server/server_stubs.c in kadmind in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3 allows remote authenticated users to cause a denial of service (daemon crash) via a request from a kadmin client that sends an invalid API version number. | ||
Family: | unix | Class: | patch |
Reference(s): | ELSA-2010:0343-01 CVE-2010-0629 | Version: | 6 |
Platform(s): | Oracle Linux 5 | Product(s): | krb5 |
Definition Synopsis: | |||
Definition Id: oval:org.mitre.oval:def:28012 | |||
Oval ID: | oval:org.mitre.oval:def:28012 | ||
Title: | DEPRECATED: ELSA-2010-0343 -- krb5 security and bug fix update (important) | ||
Description: | [1.6.1-36.el5_5.3] - add upstream patch to fix a few use-after-free bugs, including one in kadmind (CVE-2010-0629, #578185) [1.6.1-36.el5_5.2] - pull changes to libkrb5 to properly handle and chase off-path referrals back from 1.7 (#574387) | ||
Family: | unix | Class: | patch |
Reference(s): | ELSA-2010-0343 CVE-2010-0629 | Version: | 4 |
Platform(s): | Oracle Linux 5 | Product(s): | krb5 |
Definition Synopsis: | |||
Definition Id: oval:org.mitre.oval:def:9489 | |||
Oval ID: | oval:org.mitre.oval:def:9489 | ||
Title: | Use-after-free vulnerability in kadmin/server/server_stubs.c in kadmind in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3 allows remote authenticated users to cause a denial of service (daemon crash) via a request from a kadmin client that sends an invalid API version number. | ||
Description: | Use-after-free vulnerability in kadmin/server/server_stubs.c in kadmind in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3 allows remote authenticated users to cause a denial of service (daemon crash) via a request from a kadmin client that sends an invalid API version number. | ||
Family: | unix | Class: | vulnerability |
Reference(s): | CVE-2010-0629 | Version: | 5 |
Platform(s): | Red Hat Enterprise Linux 5 CentOS Linux 5 Oracle Linux 5 | Product(s): | |
Definition Synopsis: | |||
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CPE : Common Platform Enumeration
OpenVAS Exploits
Date | Description |
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2012-02-12 | Name : Gentoo Security Advisory GLSA 201201-13 (mit-krb5) File : nvt/glsa_201201_13.nasl |
2011-08-09 | Name : CentOS Update for krb5-devel CESA-2010:0343 centos5 i386 File : nvt/gb_CESA-2010_0343_krb5-devel_centos5_i386.nasl |
2010-05-28 | Name : Fedora Update for krb5 FEDORA-2010-8796 File : nvt/gb_fedora_2010_8796_krb5_fc11.nasl |
2010-04-21 | Name : FreeBSD Ports: krb5 File : nvt/freebsd_krb52.nasl |
2010-04-16 | Name : Mandriva Update for krb5 MDVSA-2010:071 (krb5) File : nvt/gb_mandriva_MDVSA_2010_071.nasl |
2010-04-09 | Name : RedHat Update for krb5 RHSA-2010:0343-01 File : nvt/gb_RHSA-2010_0343-01_krb5.nasl |
2010-04-09 | Name : Fedora Update for krb5 FEDORA-2010-6108 File : nvt/gb_fedora_2010_6108_krb5_fc11.nasl |
2010-04-09 | Name : Ubuntu Update for krb5 vulnerabilities USN-924-1 File : nvt/gb_ubuntu_USN_924_1.nasl |
2010-02-19 | Name : Mandriva Update for eject MDVA-2010:071 (eject) File : nvt/gb_mandriva_MDVA_2010_071.nasl |
Open Source Vulnerability Database (OSVDB)
Id | Description |
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63569 | Kerberos src/kadmin/server/server_stubs.c init_2_svc() Function API Version N... |
Nessus® Vulnerability Scanner
Date | Description |
---|---|
2014-11-26 | Name : The remote OracleVM host is missing one or more security updates. File : oraclevm_OVMSA-2011-0015.nasl - Type : ACT_GATHER_INFO |
2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2010-0343.nasl - Type : ACT_GATHER_INFO |
2013-03-09 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-924-1.nasl - Type : ACT_GATHER_INFO |
2012-08-01 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20100406_krb5_on_SL5_x.nasl - Type : ACT_GATHER_INFO |
2012-01-24 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-201201-13.nasl - Type : ACT_GATHER_INFO |
2010-12-02 | Name : The remote SuSE 11 host is missing one or more security updates. File : suse_11_krb5-100401.nasl - Type : ACT_GATHER_INFO |
2010-07-01 | Name : The remote Fedora host is missing a security update. File : fedora_2010-6108.nasl - Type : ACT_GATHER_INFO |
2010-06-01 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2010-0343.nasl - Type : ACT_GATHER_INFO |
2010-05-11 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2010-0343.nasl - Type : ACT_GATHER_INFO |
2010-04-20 | Name : The remote FreeBSD host is missing a security-related update. File : freebsd_pkg_a30573dc489311dfa5f9001641aeabdf.nasl - Type : ACT_GATHER_INFO |
2010-04-14 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2010-071.nasl - Type : ACT_GATHER_INFO |
2010-04-13 | Name : The remote openSUSE host is missing a security update. File : suse_11_0_krb5-100401.nasl - Type : ACT_GATHER_INFO |
2010-04-13 | Name : The remote openSUSE host is missing a security update. File : suse_11_1_krb5-100401.nasl - Type : ACT_GATHER_INFO |
2010-04-12 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2031.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2014-02-17 11:53:26 |
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