Vulnerabilities > CVE-2009-0846 - Access of Uninitialized Pointer vulnerability in multiple products
Attack vector
UNKNOWN Attack complexity
UNKNOWN Privileges required
UNKNOWN Confidentiality impact
UNKNOWN Integrity impact
UNKNOWN Availability impact
UNKNOWN Summary
The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT Kerberos 5 (aka krb5) before 1.6.4 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via vectors involving an invalid DER encoding that triggers a free of an uninitialized pointer.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Nessus
NASL family Scientific Linux Local Security Checks NASL id SL_20090407_KRB5_ON_SL3_X.NASL description An input validation flaw was found in the ASN.1 (Abstract Syntax Notation One) decoder used by MIT Kerberos. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library, such as kadmind or krb5kdc, by causing it to dereference or free an uninitialized pointer or, possibly, execute arbitrary code with the privileges of the user running the service. (CVE-2009-0846) All running services using the MIT Kerberos libraries must be restarted for the update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 60563 published 2012-08-01 reporter This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/60563 title Scientific Linux Security Update : krb5 on SL3.x i386/x86_64 NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2009-0408.NASL description From Red Hat Security Advisory 2009:0408 : Updated krb5 packages that fix various security issues are now available for Red Hat Enterprise Linux 5. This update has been rated as having important security impact by the Red Hat Security Response Team. 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). The Generic Security Service Application Program Interface (GSS-API) definition provides security services to callers (protocols) in a generic fashion. The Simple and Protected GSS-API Negotiation (SPNEGO) mechanism is used by GSS-API peers to choose from a common set of security mechanisms. An input validation flaw was found in the ASN.1 (Abstract Syntax Notation One) decoder used by MIT Kerberos. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library, such as kadmind or krb5kdc, by causing it to dereference or free an uninitialized pointer. (CVE-2009-0846) Multiple input validation flaws were found in the MIT Kerberos GSS-API library last seen 2020-06-01 modified 2020-06-02 plugin id 67836 published 2013-07-12 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/67836 title Oracle Linux 5 : krb5 (ELSA-2009-0408) NASL family VMware ESX Local Security Checks NASL id VMWARE_VMSA-2009-0008.NASL description a. Service Console package krb5 update Kerberos is a network authentication protocol. It is designed to provide strong authentication for client/server applications by using secret-key cryptography. An input validation flaw in the asn1_decode_generaltime function in MIT Kerberos 5 before 1.6.4 allows remote attackers to cause a denial of service or possibly execute arbitrary code via vectors involving an invalid DER encoding that triggers a free of an uninitialized pointer. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library, such as kadmind or krb5kdc, by causing it to dereference or free an uninitialized pointer or, possibly, execute arbitrary code with the privileges of the user running the service. NOTE: ESX by default is unaffected by this issue, the daemons kadmind and krb5kdc are not installed in ESX. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2009-0846 to this issue. In addition the ESX 4.0 Service Console krb5 package was also updated for CVE-2009-0845, and CVE-2009-0844 and RHBA-2009-0135. MIT Kerberos versions 5 1.5 through 1.6.3 might allow remote attackers to cause a denial of service by using invalid ContextFlags data in the reqFlags field in a negTokenInit token. The Common Vulnerabilities and Exposures Project (cve.mitre.org) has assigned the name CVE-2009-0845 to this issue. MIT Kerberos 5 before version 1.6.4 might allow remote attackers to cause a denial of service or possibly execute arbitrary code by using vectors involving an invalid DER encoding that triggers a free of an uninitialized pointer. The Common Vulnerabilities and Exposures Project (cve.mitre.org) has assigned the name CVE-2009-0846 to this issue. For ESX 4.0, 3.5, 3.0.3 the Service Console package pam_krb5 has also been upgraded. For details on the non-security issues that this upgrade addresses, refer to the respective KB article listed in section 4 below. last seen 2020-06-01 modified 2020-06-02 plugin id 40393 published 2009-07-27 reporter This script is Copyright (C) 2009-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/40393 title VMSA-2009-0008 : ESX Service Console update for krb5 NASL family Debian Local Security Checks NASL id DEBIAN_DSA-1766.NASL description Several vulnerabilities have been found in the MIT reference implementation of Kerberos V5, a system for authenticating users and services on a network. The Common Vulnerabilities and Exposures project identified the following problems : - CVE-2009-0844 The Apple Product Security team discovered that the SPNEGO GSS-API mechanism suffers of a missing bounds check when reading a network input buffer which results in an invalid read crashing the application or possibly leaking information. - CVE-2009-0845 Under certain conditions the SPNEGO GSS-API mechanism references a NULL pointer which crashes the application using the library. - CVE-2009-0847 An incorrect length check inside the ASN.1 decoder of the MIT krb5 implementation allows an unauthenticated remote attacker to crash of the kinit or KDC program. - CVE-2009-0846 Under certain conditions the the ASN.1 decoder of the MIT krb5 implementation frees an uninitialized pointer which could lead to denial of service and possibly arbitrary code execution. last seen 2020-06-01 modified 2020-06-02 plugin id 36120 published 2009-04-09 reporter This script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/36120 title Debian DSA-1766-1 : krb5 - several vulnerabilities NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2009-0410.NASL description Updated krb5 packages that fix a security issue are now available for Red Hat Enterprise Linux 2.1 and 3. This update has been rated as having critical security impact by the Red Hat Security Response Team. 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 input validation flaw was found in the ASN.1 (Abstract Syntax Notation One) decoder used by MIT Kerberos. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library, such as kadmind or krb5kdc, by causing it to dereference or free an uninitialized pointer or, possibly, execute arbitrary code with the privileges of the user running the service. (CVE-2009-0846) All krb5 users should upgrade to these updated packages, which contain a backported patch to correct this issue. All running services using the MIT Kerberos libraries must be restarted for the update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 36107 published 2009-04-08 reporter This script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/36107 title CentOS 3 : krb5 (CESA-2009:0410) NASL family HP-UX Local Security Checks NASL id HPUX_PHSS_39766.NASL description s700_800 11.31 KRB5-Client Version 1.3.5.03 Cumulative patch : Potential security vulnerabilities have been identified on HP-UX running Kerberos. These vulnerabilities could be exploited by remote unauthenticated users to create a Denial of Service (DoS) or to execute arbitrary code. last seen 2020-06-01 modified 2020-06-02 plugin id 41977 published 2009-10-05 reporter This script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/41977 title HP-UX PHSS_39766 : HP-UX Running Kerberos, Remote Denial of Service (DoS), Execution of Arbitrary Code (HPSBUX02421 SSRT090047 rev.2) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-755-1.NASL description Multiple flaws were discovered in the Kerberos GSS-API and ASN.1 routines that did not correctly handle certain requests. An unauthenticated remote attacker could send specially crafted traffic to crash services using the Kerberos library, leading to a denial of service. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 37819 published 2009-04-23 reporter Ubuntu Security Notice (C) 2009-2019 Canonical, Inc. / NASL script (C) 2009-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/37819 title Ubuntu 6.06 LTS / 7.10 / 8.04 LTS / 8.10 : krb5 vulnerabilities (USN-755-1) NASL family SuSE Local Security Checks NASL id SUSE_11_0_KRB5-090406.NASL description Clients sending negotiation requests with invalid flags could crash the kerberos server (CVE-2009-0845). GSS-API clients could crash when reading from an invalid address space (CVE-2009-0844). Invalid length checks could crash applications using the kerberos ASN.1 parser (CVE-2009-0847). Under certain circumstances the ASN.1 parser could free an uninitialized pointer which could crash a kerberos server or even lead to execution of arbitrary code (CVE-2009-0846). last seen 2020-06-01 modified 2020-06-02 plugin id 40017 published 2009-07-21 reporter This script is Copyright (C) 2009-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/40017 title openSUSE Security Update : krb5 (krb5-740) NASL family SuSE Local Security Checks NASL id SUSE_11_1_KRB5-090406.NASL description Clients sending negotiation requests with invalid flags could crash the kerberos server (CVE-2009-0845). GSS-API clients could crash when reading from an invalid address space (CVE-2009-0844). Invalid length checks could crash applications using the kerberos ASN.1 parser (CVE-2009-0847). Under certain circumstances the ASN.1 parser could free an uninitialized pointer which could crash a kerberos server or even lead to execution of arbitrary code (CVE-2009-0846). last seen 2020-06-01 modified 2020-06-02 plugin id 40253 published 2009-07-21 reporter This script is Copyright (C) 2009-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/40253 title openSUSE Security Update : krb5 (krb5-740) NASL family Scientific Linux Local Security Checks NASL id SL_20090407_KRB5_ON_SL4_X.NASL description An input validation flaw was found in the ASN.1 (Abstract Syntax Notation One) decoder used by MIT Kerberos. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library, such as kadmind or krb5kdc, by causing it to dereference or free an uninitialized pointer. (CVE-2009-0846) Multiple input validation flaws were found in the MIT Kerberos GSS-API library last seen 2020-06-01 modified 2020-06-02 plugin id 60564 published 2012-08-01 reporter This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/60564 title Scientific Linux Security Update : krb5 on SL4.x, SL5.x i386/x86_64 NASL family VMware ESX Local Security Checks NASL id VMWARE_VMSA-2010-0016.NASL description a. Service Console OS update for COS kernel This patch updates the service console kernel to fix multiple security issues. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2010-0415, CVE-2010-0307, CVE-2010-0291, CVE-2010-0622, CVE-2010-1087, CVE-2010-1437, and CVE-2010-1088 to these issues. b. Likewise package updates Updates to the likewisekrb5, likewiseopenldap, likewiseopen, and pamkrb5 packages address several security issues. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2009-0844, CVE-2009-0845, CVE-2009-0846, CVE-2009-4212, and CVE-2010-1321 to these issues. last seen 2020-06-01 modified 2020-06-02 plugin id 50611 published 2010-11-16 reporter This script is Copyright (C) 2010-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/50611 title VMSA-2010-0016 : VMware ESXi and ESX third-party updates for Service Console and Likewise components NASL family Mandriva Local Security Checks NASL id MANDRIVA_MDVSA-2009-098.NASL description Multiple vulnerabilities has been found and corrected in krb5 : The get_input_token function in the SPNEGO implementation in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3 allows remote attackers to cause a denial of service (daemon crash) and possibly obtain sensitive information via a crafted length value that triggers a buffer over-read (CVE-2009-0844). The spnego_gss_accept_sec_context function in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3, when SPNEGO is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via invalid ContextFlags data in the reqFlags field in a negTokenInit token (CVE-2009-0845). The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT Kerberos 5 (aka krb5) before 1.6.4 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via vectors involving an invalid DER encoding that triggers a free of an uninitialized pointer (CVE-2009-0846). The asn1buf_imbed function in the ASN.1 decoder in MIT Kerberos 5 (aka krb5) 1.6.3, when PK-INIT is used, allows remote attackers to cause a denial of service (application crash) via a crafted length value that triggers an erroneous malloc call, related to incorrect calculations with pointer arithmetic (CVE-2009-0847). The updated packages have been patched to correct these issues. Update : Packages for 2008.0 are provided for Corporate Desktop 2008.0 customers last seen 2020-06-01 modified 2020-06-02 plugin id 38191 published 2009-04-28 reporter This script is Copyright (C) 2009-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/38191 title Mandriva Linux Security Advisory : krb5 (MDVSA-2009:098-1) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2009-0409.NASL description From Red Hat Security Advisory 2009:0409 : Updated krb5 packages that fix a security issue are now available for Red Hat Enterprise Linux 4. This update has been rated as having important security impact by the Red Hat Security Response Team. 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 input validation flaw was found in the ASN.1 (Abstract Syntax Notation One) decoder used by MIT Kerberos. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library, such as kadmind or krb5kdc, by causing it to dereference or free an uninitialized pointer. (CVE-2009-0846) All krb5 users should upgrade to these updated packages, which contain a backported patch to correct this issue. All running services using the MIT Kerberos libraries must be restarted for the update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 67837 published 2013-07-12 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/67837 title Oracle Linux 4 : krb5 (ELSA-2009-0409) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2009-0409.NASL description Updated krb5 packages that fix a security issue are now available for Red Hat Enterprise Linux 4. This update has been rated as having important security impact by the Red Hat Security Response Team. 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 input validation flaw was found in the ASN.1 (Abstract Syntax Notation One) decoder used by MIT Kerberos. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library, such as kadmind or krb5kdc, by causing it to dereference or free an uninitialized pointer. (CVE-2009-0846) All krb5 users should upgrade to these updated packages, which contain a backported patch to correct this issue. All running services using the MIT Kerberos libraries must be restarted for the update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 43740 published 2010-01-06 reporter This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/43740 title CentOS 4 : krb5 (CESA-2009:0409) NASL family HP-UX Local Security Checks NASL id HPUX_PHSS_39765.NASL description s700_800 11.23 KRB5-Client Version 1.0 Cumulative patch : Potential security vulnerabilities have been identified on HP-UX running Kerberos. These vulnerabilities could be exploited by remote unauthenticated users to create a Denial of Service (DoS) or to execute arbitrary code. last seen 2020-06-01 modified 2020-06-02 plugin id 41976 published 2009-10-05 reporter This script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/41976 title HP-UX PHSS_39765 : HP-UX Running Kerberos, Remote Denial of Service (DoS), Execution of Arbitrary Code (HPSBUX02421 SSRT090047 rev.2) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2009-0409.NASL description Updated krb5 packages that fix a security issue are now available for Red Hat Enterprise Linux 4. This update has been rated as having important security impact by the Red Hat Security Response Team. 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 input validation flaw was found in the ASN.1 (Abstract Syntax Notation One) decoder used by MIT Kerberos. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library, such as kadmind or krb5kdc, by causing it to dereference or free an uninitialized pointer. (CVE-2009-0846) All krb5 users should upgrade to these updated packages, which contain a backported patch to correct this issue. All running services using the MIT Kerberos libraries must be restarted for the update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 36113 published 2009-04-08 reporter This script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/36113 title RHEL 4 : krb5 (RHSA-2009:0409) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2009-0408.NASL description Updated krb5 packages that fix various security issues are now available for Red Hat Enterprise Linux 5. This update has been rated as having important security impact by the Red Hat Security Response Team. 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). The Generic Security Service Application Program Interface (GSS-API) definition provides security services to callers (protocols) in a generic fashion. The Simple and Protected GSS-API Negotiation (SPNEGO) mechanism is used by GSS-API peers to choose from a common set of security mechanisms. An input validation flaw was found in the ASN.1 (Abstract Syntax Notation One) decoder used by MIT Kerberos. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library, such as kadmind or krb5kdc, by causing it to dereference or free an uninitialized pointer. (CVE-2009-0846) Multiple input validation flaws were found in the MIT Kerberos GSS-API library last seen 2020-06-01 modified 2020-06-02 plugin id 36112 published 2009-04-08 reporter This script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/36112 title RHEL 5 : krb5 (RHSA-2009:0408) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-200904-09.NASL description The remote host is affected by the vulnerability described in GLSA-200904-09 (MIT Kerberos 5: Multiple vulnerabilities) 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. last seen 2020-06-01 modified 2020-06-02 plugin id 36137 published 2009-04-11 reporter This script is Copyright (C) 2009-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/36137 title GLSA-200904-09 : MIT Kerberos 5: Multiple vulnerabilities NASL family HP-UX Local Security Checks NASL id HPUX_PHSS_39774.NASL description s700_800 11.11 KRB5-Client Version 1.0 cumulative patch : Potential security vulnerabilities have been identified on HP-UX running Kerberos. These vulnerabilities could be exploited by remote unauthenticated users to create a Denial of Service (DoS) or to execute arbitrary code. last seen 2020-06-01 modified 2020-06-02 plugin id 41978 published 2009-10-05 reporter This script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/41978 title HP-UX PHSS_39774 : HP-UX Running Kerberos, Remote Denial of Service (DoS), Execution of Arbitrary Code (HPSBUX02421 SSRT090047 rev.2) NASL family SuSE Local Security Checks NASL id SUSE_KRB5-6139.NASL description Clients sending negotiation requests with invalid flags could crash the kerberos server (CVE-2009-0845). GSS-API clients could crash when reading from an invalid address space (CVE-2009-0844). Invalid length checks could crash applications using the kerberos ASN.1 parser (CVE-2009-0847). Under certain circumstances the ASN.1 parser could free an uninitialized pointer which could crash a kerberos server or even lead to execution of arbitrary code (CVE-2009-0846). last seen 2020-06-01 modified 2020-06-02 plugin id 36122 published 2009-04-09 reporter This script is Copyright (C) 2009-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/36122 title openSUSE 10 Security Update : krb5 (krb5-6139) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2009-0410.NASL description Updated krb5 packages that fix a security issue are now available for Red Hat Enterprise Linux 2.1 and 3. This update has been rated as having critical security impact by the Red Hat Security Response Team. 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 input validation flaw was found in the ASN.1 (Abstract Syntax Notation One) decoder used by MIT Kerberos. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library, such as kadmind or krb5kdc, by causing it to dereference or free an uninitialized pointer or, possibly, execute arbitrary code with the privileges of the user running the service. (CVE-2009-0846) All krb5 users should upgrade to these updated packages, which contain a backported patch to correct this issue. All running services using the MIT Kerberos libraries must be restarted for the update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 36114 published 2009-04-08 reporter This script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/36114 title RHEL 2.1 / 3 : krb5 (RHSA-2009:0410) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2009-0408.NASL description Updated krb5 packages that fix various security issues are now available for Red Hat Enterprise Linux 5. This update has been rated as having important security impact by the Red Hat Security Response Team. 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). The Generic Security Service Application Program Interface (GSS-API) definition provides security services to callers (protocols) in a generic fashion. The Simple and Protected GSS-API Negotiation (SPNEGO) mechanism is used by GSS-API peers to choose from a common set of security mechanisms. An input validation flaw was found in the ASN.1 (Abstract Syntax Notation One) decoder used by MIT Kerberos. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library, such as kadmind or krb5kdc, by causing it to dereference or free an uninitialized pointer. (CVE-2009-0846) Multiple input validation flaws were found in the MIT Kerberos GSS-API library last seen 2020-06-01 modified 2020-06-02 plugin id 43739 published 2010-01-06 reporter This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/43739 title CentOS 5 : krb5 (CESA-2009:0408) NASL family Fedora Local Security Checks NASL id FEDORA_2009-2852.NASL description This update incorporates patches to fix potential read overflow and NULL pointer dereferences in the implementation of the SPNEGO GSSAPI mechanism (CVE-2009-0844, CVE-2009-0845), attempts to free an uninitialized pointer during protocol parsing (CVE-2009-0846), and a bug in length validation during protocol parsing (CVE-2009-0847). Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 36660 published 2009-04-23 reporter This script is Copyright (C) 2009-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/36660 title Fedora 10 : krb5-1.6.3-18.fc10 (2009-2852) NASL family SuSE Local Security Checks NASL id SUSE_KRB5-6140.NASL description Clients sending negotiation requests with invalid flags could crash the kerberos server. (CVE-2009-0845) GSS-API clients could crash when reading from an invalid address space. (CVE-2009-0844) Invalid length checks could crash applications using the kerberos ASN.1 parser. (CVE-2009-0847) Under certain circumstances the ASN.1 parser could free an uninitialized pointer which could crash a kerberos server or even lead to execution of arbitrary code. (CVE-2009-0846) last seen 2020-06-01 modified 2020-06-02 plugin id 41542 published 2009-09-24 reporter This script is Copyright (C) 2009-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/41542 title SuSE 10 Security Update : Kerberos (ZYPP Patch Number 6140) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2009-0003.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : CVE-2009-0844 The get_input_token function in the SPNEGO implementation in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3 allows remote attackers to cause a denial of service (daemon crash) and possibly obtain sensitive information via a crafted length value that triggers a buffer over-read. CVE-2009-0845 The spnego_gss_accept_sec_context function in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3, when SPNEGO is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via invalid ContextFlags data in the reqFlags field in a negTokenInit token. CVE-2009-0846 The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT Kerberos 5 (aka krb5) before 1.6.4 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via vectors involving an invalid DER encoding that triggers a free of an uninitialized pointer. - update to revised patch for (CVE-2009-0844, CVE-2009-0845) - add fix for potential buffer read overrun in the SPNEGO GSSAPI mechanism (#490635, CVE-2009-0844) - add fix for NULL pointer dereference when handling certain error cases in the SPNEGO GSSAPI mechanism (#490635, CVE-2009-0845) - add fix for attempt to free uninitialized pointer in the ASN.1 decoder (#490635, CVE-2009-0846) - add fix for bug in length validation in the ASN.1 decoder (CVE-2009-0847) - add backport of svn patch to fix a bug in how the gssapi library handles certain error cases in gss_accept_sec_context (CVE-2009-0845, - add a backported patch which adds a check on credentials obtained from a foreign realm to make sure that they last seen 2020-06-01 modified 2020-06-02 plugin id 79452 published 2014-11-26 reporter This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/79452 title OracleVM 2.1 : krb5 (OVMSA-2009-0003) NASL family Misc. NASL id VMWARE_VMSA-2009-0008_REMOTE.NASL description The remote VMware ESX host is missing a security-related patch. It is, therefore, affected by multiple vulnerabilities : - An out-of-bounds read error exists in the MIT Kerberos SPNEGO implementation in the get_input_token() function. A remote attacker can exploit this, via a crafted length value, to cause a denial of service or to obtain access to sensitive information. (CVE-2009-0844) - A NULL pointer dereference flaw exists in MIT Kerberos in the spnego_gss_accept_sec_context() function when SPNEGO is used. A remote attacker can exploit this, via invalid ContextFlags data in the last seen 2020-06-01 modified 2020-06-02 plugin id 89114 published 2016-03-03 reporter This script is Copyright (C) 2016-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/89114 title VMware ESX Multiple Vulnerabilities (VMSA-2009-0008) (remote check) NASL family MacOS X Local Security Checks NASL id MACOSX_10_5_7.NASL description The remote host is running a version of Mac OS X 10.5.x that is prior to 10.5.7. Mac OS X 10.5.7 contains security fixes for the following products : - Apache - ATS - BIND - CFNetwork - CoreGraphics - Cscope - CUPS - Disk Images - enscript - Flash Player plug-in - Help Viewer - iChat - International Components for Unicode - IPSec - Kerberos - Kernel - Launch Services - libxml - Net-SNMP - Network Time - Networking - OpenSSL - PHP - QuickDraw Manager - ruby - Safari - Spotlight - system_cmds - telnet - Terminal - WebKit - X11 last seen 2020-06-01 modified 2020-06-02 plugin id 38744 published 2009-05-13 reporter This script is Copyright (C) 2009-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/38744 title Mac OS X 10.5.x < 10.5.7 Multiple Vulnerabilities NASL family SuSE Local Security Checks NASL id SUSE_11_KRB5-090406.NASL description Clients sending negotiation requests with invalid flags could crash the kerberos server. (CVE-2009-0845) GSS-API clients could crash when reading from an invalid address space. (CVE-2009-0844) Invalid length checks could crash applications using the kerberos ASN.1 parser. (CVE-2009-0847) Under certain circumstances the ASN.1 parser could free an uninitialized pointer which could crash a kerberos server or even lead to execution of arbitrary code. (CVE-2009-0846) last seen 2020-06-01 modified 2020-06-02 plugin id 41415 published 2009-09-24 reporter This script is Copyright (C) 2009-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/41415 title SuSE 11 Security Update : Kerberos (SAT Patch Number 738) NASL family Fedora Local Security Checks NASL id FEDORA_2009-2834.NASL description This update incorporates patches to fix potential read overflow and NULL pointer dereferences in the implementation of the SPNEGO GSSAPI mechanism (CVE-2009-0844, CVE-2009-0845), attempts to free an uninitialized pointer during protocol parsing (CVE-2009-0846), and a bug in length validation during protocol parsing (CVE-2009-0847). Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 36108 published 2009-04-08 reporter This script is Copyright (C) 2009-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/36108 title Fedora 9 : krb5-1.6.3-16.fc9 (2009-2834) NASL family MacOS X Local Security Checks NASL id MACOSX_SECUPD2009-002.NASL description The remote host is running a version of Mac OS X 10.4 that does not have Security Update 2009-002 applied. This security update contains fixes for the following products : - Apache - ATS - BIND - CoreGraphics - Cscope - CUPS - Disk Images - enscript - Flash Player plug-in - Help Viewer - IPSec - Kerberos - Launch Services - libxml - Net-SNMP - Network Time - OpenSSL - QuickDraw Manager - Spotlight - system_cmds - telnet - Terminal - X11 last seen 2020-06-01 modified 2020-06-02 plugin id 38743 published 2009-05-13 reporter This script is Copyright (C) 2009-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/38743 title Mac OS X Multiple Vulnerabilities (Security Update 2009-002) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2009-0410.NASL description From Red Hat Security Advisory 2009:0410 : Updated krb5 packages that fix a security issue are now available for Red Hat Enterprise Linux 2.1 and 3. This update has been rated as having critical security impact by the Red Hat Security Response Team. 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 input validation flaw was found in the ASN.1 (Abstract Syntax Notation One) decoder used by MIT Kerberos. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library, such as kadmind or krb5kdc, by causing it to dereference or free an uninitialized pointer or, possibly, execute arbitrary code with the privileges of the user running the service. (CVE-2009-0846) All krb5 users should upgrade to these updated packages, which contain a backported patch to correct this issue. All running services using the MIT Kerberos libraries must be restarted for the update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 67838 published 2013-07-12 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/67838 title Oracle Linux 3 : krb5 (ELSA-2009-0410)
Oval
accepted 2013-04-29T04:07:48.822-04:00 class vulnerability contributors name Aharon Chernin organization SCAP.com, LLC name Dragos Prisaca organization G2, Inc.
definition_extensions comment The operating system installed on the system is Red Hat Enterprise Linux 3 oval oval:org.mitre.oval:def:11782 comment CentOS Linux 3.x oval oval:org.mitre.oval:def:16651 comment The operating system installed on the system is Red Hat Enterprise Linux 4 oval oval:org.mitre.oval:def:11831 comment CentOS Linux 4.x oval oval:org.mitre.oval:def:16636 comment Oracle Linux 4.x oval oval:org.mitre.oval:def:15990 comment The operating system installed on the system is Red Hat Enterprise Linux 5 oval oval:org.mitre.oval:def:11414 comment The operating system installed on the system is CentOS Linux 5.x oval oval:org.mitre.oval:def:15802 comment Oracle Linux 5.x oval oval:org.mitre.oval:def:15459
description The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT Kerberos 5 (aka krb5) before 1.6.4 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via vectors involving an invalid DER encoding that triggers a free of an uninitialized pointer. family unix id oval:org.mitre.oval:def:10694 status accepted submitted 2010-07-09T03:56:16-04:00 title The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT Kerberos 5 (aka krb5) before 1.6.4 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via vectors involving an invalid DER encoding that triggers a free of an uninitialized pointer. version 27 accepted 2014-01-20T04:01:19.437-05:00 class vulnerability contributors name Michael Wood organization Hewlett-Packard name J. Daniel Brown organization DTCC name Chris Coffin organization The MITRE Corporation
definition_extensions comment VMWare ESX Server 3.0.3 is installed oval oval:org.mitre.oval:def:6026 comment VMware ESX Server 4.0 is installed oval oval:org.mitre.oval:def:6293 comment VMware ESX Server 3.5.0 is installed oval oval:org.mitre.oval:def:5887 comment VMWare ESX Server 3.0.2 is installed oval oval:org.mitre.oval:def:5613
description The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT Kerberos 5 (aka krb5) before 1.6.4 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via vectors involving an invalid DER encoding that triggers a free of an uninitialized pointer. family unix id oval:org.mitre.oval:def:5483 status accepted submitted 2009-09-23T15:39:02.000-04:00 title Kerberos ASN.1 GeneralizedTime Decoder Bug Lets Remote Users Execute Arbitrary Code version 8 accepted 2015-04-20T04:02:30.942-04:00 class vulnerability contributors name Pai Peng organization Hewlett-Packard name Sushant Kumar Singh organization Hewlett-Packard name Sushant Kumar Singh organization Hewlett-Packard name Prashant Kumar organization Hewlett-Packard name Mike Cokus organization The MITRE Corporation
description The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT Kerberos 5 (aka krb5) before 1.6.4 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via vectors involving an invalid DER encoding that triggers a free of an uninitialized pointer. family unix id oval:org.mitre.oval:def:6301 status accepted submitted 2009-08-11T16:16:36.000-04:00 title HP-UX Running Kerberos, Remote Denial of Service (DoS), Execution of Arbitrary Code version 47
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References
- http://www.kb.cert.org/vuls/id/662091
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-002.txt
- http://www.securitytracker.com/id?1021994
- http://www.ubuntu.com/usn/usn-755-1
- http://secunia.com/advisories/34640
- http://security.gentoo.org/glsa/glsa-200904-09.xml
- http://wiki.rpath.com/Advisories:rPSA-2009-0058
- http://www.vupen.com/english/advisories/2009/0976
- http://www.vupen.com/english/advisories/2009/0960
- http://www.securityfocus.com/bid/34409
- https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00206.html
- http://secunia.com/advisories/34630
- http://secunia.com/advisories/34594
- http://secunia.com/advisories/34622
- http://secunia.com/advisories/34637
- https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00205.html
- http://www.redhat.com/support/errata/RHSA-2009-0408.html
- http://secunia.com/advisories/34617
- http://rhn.redhat.com/errata/RHSA-2009-0410.html
- http://secunia.com/advisories/34598
- http://rhn.redhat.com/errata/RHSA-2009-0409.html
- http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058
- http://secunia.com/advisories/34628
- http://support.avaya.com/elmodocs2/security/ASA-2009-142.htm
- http://www.vupen.com/english/advisories/2009/1106
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1
- http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html
- http://www.vupen.com/english/advisories/2009/1057
- http://secunia.com/advisories/34734
- http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html
- http://www.us-cert.gov/cas/techalerts/TA09-133A.html
- http://support.apple.com/kb/HT3549
- http://www.vupen.com/english/advisories/2009/1297
- http://secunia.com/advisories/35074
- http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:098
- http://lists.vmware.com/pipermail/security-announce/2009/000059.html
- http://www.vmware.com/security/advisories/VMSA-2009-0008.html
- http://secunia.com/advisories/35667
- http://www.vupen.com/english/advisories/2009/2084
- http://marc.info/?l=bugtraq&m=124896429301168&w=2
- http://www-01.ibm.com/support/docview.wss?uid=swg21396120
- http://www.vupen.com/english/advisories/2009/2248
- http://marc.info/?l=bugtraq&m=130497213107107&w=2
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6301
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5483
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10694
- http://www.securityfocus.com/archive/1/504683/100/0/threaded
- http://www.securityfocus.com/archive/1/502546/100/0/threaded
- http://www.securityfocus.com/archive/1/502527/100/0/threaded