Executive Summary
| Summary | |
|---|---|
| Title | krb5 security update |
| Informations | |||
|---|---|---|---|
| Name | RHSA-2013:0656 | First vendor Publication | 2013-03-18 |
| Vendor | RedHat | Last vendor Modification | 2013-03-18 |
| Severity (Vendor) | Moderate | Revision | 01 |
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:M/Au:N/C:N/I:N/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 7.1 | Attack Range | Network |
| Cvss Impact Score | 6.9 | Attack Complexity | Medium |
| Cvss Expoit Score | 8.6 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Problem Description: Updated krb5 packages that fix two security issues are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links 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). When a client attempts to use PKINIT to obtain credentials from the KDC, the client can specify, using an issuer and serial number, which of the KDC's possibly-many certificates the client has in its possession, as a hint to the KDC that it should use the corresponding key to sign its response. If that specification was malformed, the KDC could attempt to dereference a NULL pointer and crash. (CVE-2013-1415) When a client attempts to use PKINIT to obtain credentials from the KDC, the client will typically format its request to conform to the specification published in RFC 455 |
Original Source
| Url : https://rhn.redhat.com/errata/RHSA-2013-0656.html |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-476 | NULL Pointer Dereference |
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:20746 | |||
| Oval ID: | oval:org.mitre.oval:def:20746 | ||
| Title: | RHSA-2013:0656: krb5 security update (Moderate) | ||
| Description: | The pkinit_check_kdc_pkid function in plugins/preauth/pkinit/pkinit_crypto_openssl.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 and 1.11.x before 1.11.1 does not properly handle errors during extraction of fields from an X.509 certificate, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed KRB5_PADATA_PK_AS_REQ AS-REQ request. | ||
| Family: | unix | Class: | patch |
| Reference(s): | RHSA-2013:0656-01 CESA-2013:0656 CVE-2012-1016 CVE-2013-1415 | Version: | 31 |
| Platform(s): | Red Hat Enterprise Linux 6 CentOS Linux 6 | Product(s): | krb5 |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:23680 | |||
| Oval ID: | oval:org.mitre.oval:def:23680 | ||
| Title: | ELSA-2013:0656: krb5 security update (Moderate) | ||
| Description: | The pkinit_check_kdc_pkid function in plugins/preauth/pkinit/pkinit_crypto_openssl.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 and 1.11.x before 1.11.1 does not properly handle errors during extraction of fields from an X.509 certificate, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed KRB5_PADATA_PK_AS_REQ AS-REQ request. | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2013:0656-01 CVE-2012-1016 CVE-2013-1415 | Version: | 13 |
| Platform(s): | Oracle Linux 6 | Product(s): | krb5 |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:25740 | |||
| Oval ID: | oval:org.mitre.oval:def:25740 | ||
| Title: | SUSE-SU-2013:0558-1 -- Security update for Kerberos 5 | ||
| Description: | This update for Kerberos 5 fixes one security issue: The KDC plugin for PKINIT can dereference a null pointer when processing malformed packets, leading to a crash of the KDC process. (bnc#806715, CVE-2013-1415) Additionally, it improves compatibility with processes that handle large numbers of open files. (bnc#787272) | ||
| Family: | unix | Class: | patch |
| Reference(s): | SUSE-SU-2013:0558-1 CVE-2013-1415 | Version: | 3 |
| Platform(s): | SUSE Linux Enterprise Server 11 SUSE Linux Enterprise Desktop 11 | Product(s): | Kerberos 5 |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:27142 | |||
| Oval ID: | oval:org.mitre.oval:def:27142 | ||
| Title: | DEPRECATED: ELSA-2013-0656 -- krb5 security update (moderate) | ||
| Description: | [1.10.3-10.1] - incorporate upstream patch to fix a NULL pointer dereference when the client supplies an otherwise-normal-looking PKINIT request (CVE-2013-1415, #917909) - add patch to avoid dereferencing a NULL pointer in the KDC when handling a draft9 PKINIT request (#917909, CVE-2012-1016) | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2013-0656 CVE-2012-1016 CVE-2013-1415 | Version: | 4 |
| Platform(s): | Oracle Linux 6 | Product(s): | krb5 |
| Definition Synopsis: | |||
| |||
CPE : Common Platform Enumeration
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.nasl - Type : ACT_GATHER_INFO |
| 2014-11-26 | Name : The remote OracleVM host is missing a security update. File : oraclevm_OVMSA-2014-0034.nasl - Type : ACT_GATHER_INFO |
| 2014-08-12 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2310-1.nasl - Type : ACT_GATHER_INFO |
| 2014-06-13 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2013-224.nasl - Type : ACT_GATHER_INFO |
| 2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2013-0656.nasl - Type : ACT_GATHER_INFO |
| 2013-04-20 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2013-042.nasl - Type : ACT_GATHER_INFO |
| 2013-03-28 | Name : The remote SuSE 11 host is missing one or more security updates. File : suse_11_krb5-130306.nasl - Type : ACT_GATHER_INFO |
| 2013-03-23 | Name : The remote Fedora host is missing a security update. File : fedora_2013-3147.nasl - Type : ACT_GATHER_INFO |
| 2013-03-20 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2013-0656.nasl - Type : ACT_GATHER_INFO |
| 2013-03-19 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2013-0656.nasl - Type : ACT_GATHER_INFO |
| 2013-03-19 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20130318_krb5_on_SL6_x.nasl - Type : ACT_GATHER_INFO |
| 2013-03-17 | Name : The remote Fedora host is missing a security update. File : fedora_2013-3116.nasl - Type : ACT_GATHER_INFO |
| 2013-02-24 | Name : The remote FreeBSD host is missing a security-related update. File : freebsd_pkg_f54584bc7d2b11e29bd1206a8a720317.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:57:03 |
|
| 2013-03-18 21:17:22 |
|
