Executive Summary
| Summary | |
|---|---|
| Title | krb5 security update |
| Informations | |||
|---|---|---|---|
| Name | RHSA-2010:0863 | First vendor Publication | 2010-11-10 |
| Vendor | RedHat | Last vendor Modification | 2010-11-10 |
| Severity (Vendor) | Important | Revision | 02 |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| 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:P/I:P/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 6.5 | Attack Range | Network |
| Cvss Impact Score | 6.4 | 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 are now available for Red Hat Enterprise Linux 6. 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: Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - 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). An uninitialized pointer use flaw was found in the way the MIT Kerberos KDC handled TGS (Ticket-granting Server) request messages. A remote, authenticated attacker could use this flaw to crash the KDC or, possibly, disclose KDC memory or execute arbitrary code with the privileges of the KDC (krb5kdc). (CVE-2010-1322) Red Hat would like to thank the MIT Kerberos Team for reporting this issue. Upstream acknowledges Mike Roszkowski as the original reporter. All krb5 users should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, the krb5kdc daemon will be restarted automatically. 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/): 636335 - CVE-2010-1322 krb5: KDC uninitialized pointer crash in authorization data handling (MITKRB5-SA-2010-006) |
Original Source
| Url : https://rhn.redhat.com/errata/RHSA-2010-0863.html |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-20 | Improper Input Validation |
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:22269 | |||
| Oval ID: | oval:org.mitre.oval:def:22269 | ||
| Title: | RHSA-2010:0863: krb5 security update (Important) | ||
| Description: | The merge_authdata function in kdc_authdata.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x before 1.8.4 does not properly manage an index into an authorization-data list, which allows remote attackers to cause a denial of service (daemon crash), or possibly obtain sensitive information, spoof authorization, or execute arbitrary code, via a TGS request that triggers an uninitialized pointer dereference, as demonstrated by a request from a Windows Active Directory client. | ||
| Family: | unix | Class: | patch |
| Reference(s): | RHSA-2010:0863-02 CVE-2010-1322 | Version: | 4 |
| Platform(s): | Red Hat Enterprise Linux 6 | Product(s): | krb5 |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:23423 | |||
| Oval ID: | oval:org.mitre.oval:def:23423 | ||
| Title: | ELSA-2010:0863: krb5 security update (Important) | ||
| Description: | The merge_authdata function in kdc_authdata.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x before 1.8.4 does not properly manage an index into an authorization-data list, which allows remote attackers to cause a denial of service (daemon crash), or possibly obtain sensitive information, spoof authorization, or execute arbitrary code, via a TGS request that triggers an uninitialized pointer dereference, as demonstrated by a request from a Windows Active Directory client. | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2010:0863-02 CVE-2010-1322 | Version: | 6 |
| Platform(s): | Oracle Linux 6 | Product(s): | krb5 |
| Definition Synopsis: | |||
| |||
CPE : Common Platform Enumeration
| Type | Description | Count |
|---|---|---|
| Application | 4 |
OpenVAS Exploits
| Date | Description |
|---|---|
| 2012-02-12 | Name : Gentoo Security Advisory GLSA 201201-13 (mit-krb5) File : nvt/glsa_201201_13.nasl |
| 2011-11-18 | Name : Fedora Update for krb5 FEDORA-2011-14650 File : nvt/gb_fedora_2011_14650_krb5_fc14.nasl |
| 2010-12-02 | Name : Fedora Update for krb5 FEDORA-2010-15803 File : nvt/gb_fedora_2010_15803_krb5_fc14.nasl |
| 2010-11-16 | Name : Mandriva Update for krb5 MDVSA-2010:202-1 (krb5) File : nvt/gb_mandriva_MDVSA_2010_202_1.nasl |
| 2010-10-19 | Name : Mandriva Update for krb5 MDVSA-2010:202 (krb5) File : nvt/gb_mandriva_MDVSA_2010_202.nasl |
| 2010-10-19 | Name : Ubuntu Update for krb5 vulnerability USN-999-1 File : nvt/gb_ubuntu_USN_999_1.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 68525 | MIT Kerberos 5 (krb5) Key Distribution Center kdc_authdata.c merge_authdata F... MIT Kerberos 5 contains a flaw that may allow a remote denial of service. The issue is triggered when the 'merge_authdata()' function in 'kdc_authdata.c' in the Key Distribution Center suffers from an array-indexing error when processing authorization data, allowing a remote attacker to cause a denial of service. It is also possible, though not confirmed, for an attacker to in certain rare theoretical circumstances execute arbitrary code, spoof authorization, or obtain access to potentially sensitive information. |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2015-01-19 | Name : The remote Solaris system is missing a security patch for third-party software. File : solaris11_kerberos_20130924_2.nasl - Type : ACT_GATHER_INFO |
| 2014-06-13 | Name : The remote openSUSE host is missing a security update. File : suse_11_3_krb5-101006.nasl - Type : ACT_GATHER_INFO |
| 2012-08-01 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20101110_krb5_on_SL6_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 |
| 2010-11-18 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2010-0863.nasl - Type : ACT_GATHER_INFO |
| 2010-10-15 | Name : The remote Fedora host is missing a security update. File : fedora_2010-15803.nasl - Type : ACT_GATHER_INFO |
| 2010-10-14 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2010-202.nasl - Type : ACT_GATHER_INFO |
| 2010-10-06 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-999-1.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:54:02 |
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