Vulnerabilities > CVE-2014-5353 - Null Pointer Dereference vulnerability in multiple products
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
SINGLE Confidentiality impact
NONE Integrity impact
NONE Availability impact
PARTIAL Summary
The krb5_ldap_get_password_policy_from_dn function in plugins/kdb/ldap/libkdb_ldap/ldap_pwd_policy.c in MIT Kerberos 5 (aka krb5) before 1.13.1, when the KDC uses LDAP, allows remote authenticated users to cause a denial of service (daemon crash) via a successful LDAP query with no results, as demonstrated by using an incorrect object type for a password policy.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Nessus
NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2015-0439.NASL description Updated krb5 packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 7. Red Hat Product Security 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. Kerberos is a networked authentication system which allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos KDC. A NULL pointer dereference flaw was found in the MIT Kerberos SPNEGO acceptor for continuation tokens. A remote, unauthenticated attacker could use this flaw to crash a GSSAPI-enabled server application. (CVE-2014-4344) A buffer overflow was found in the KADM5 administration server (kadmind) when it was used with an LDAP back end for the KDC database. A remote, authenticated attacker could potentially use this flaw to execute arbitrary code on the system running kadmind. (CVE-2014-4345) A use-after-free flaw was found in the way the MIT Kerberos libgssapi_krb5 library processed valid context deletion tokens. An attacker able to make an application using the GSS-API library (libgssapi) call the gss_process_context_token() function could use this flaw to crash that application. (CVE-2014-5352) If kadmind were used with an LDAP back end for the KDC database, a remote, authenticated attacker with the permissions to set the password policy could crash kadmind by attempting to use a named ticket policy object as a password policy for a principal. (CVE-2014-5353) A double-free flaw was found in the way MIT Kerberos handled invalid External Data Representation (XDR) data. An authenticated user could use this flaw to crash the MIT Kerberos administration server (kadmind), or other applications using Kerberos libraries, using specially crafted XDR packets. (CVE-2014-9421) It was found that the MIT Kerberos administration server (kadmind) incorrectly accepted certain authentication requests for two-component server principal names. A remote attacker able to acquire a key with a particularly named principal (such as last seen 2020-06-01 modified 2020-06-02 plugin id 81637 published 2015-03-05 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/81637 title RHEL 7 : krb5 (RHSA-2015:0439) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2016-0039.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - Fix (CVE-2015-8629, CVE-2015-8631) - Also fix a spec trigger issue that prevents building - Resolves: #1306973 last seen 2020-06-01 modified 2020-06-02 plugin id 90138 published 2016-03-24 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/90138 title OracleVM 3.3 / 3.4 : krb5 (OVMSA-2016-0039) NASL family Fedora Local Security Checks NASL id FEDORA_2015-5949.NASL description Security fix for CVE-2014-5353 (this was fixed in an older build but the announcement was lost) 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 2020-06-05 modified 2015-04-23 plugin id 83012 published 2015-04-23 reporter This script is Copyright (C) 2015-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/83012 title Fedora 22 : krb5-1.13.1-2.fc22 (2015-5949) NASL family SuSE Local Security Checks NASL id SUSE_SU-2015-1276-1.NASL description krb5 was updated to fix four security issues. These security issues were fixed : - CVE-2014-5353: NULL pointer dereference when using a ticket policy name as password name (bsc#910457). - CVE-2014-5354: NULL pointer dereference when using keyless entries (bsc#910458). - CVE-2014-5355: Denial of service in krb5_read_message (bsc#918595). - CVE-2015-2694: OTP and PKINIT kdcpreauth modules leading to requires_preauth bypass (bsc#928978). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE 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 84914 published 2015-07-22 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/84914 title SUSE SLES12 Security Update : krb5 (SUSE-SU-2015:1276-1) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2015-0439.NASL description Updated krb5 packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 7. Red Hat Product Security 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. Kerberos is a networked authentication system which allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos KDC. A NULL pointer dereference flaw was found in the MIT Kerberos SPNEGO acceptor for continuation tokens. A remote, unauthenticated attacker could use this flaw to crash a GSSAPI-enabled server application. (CVE-2014-4344) A buffer overflow was found in the KADM5 administration server (kadmind) when it was used with an LDAP back end for the KDC database. A remote, authenticated attacker could potentially use this flaw to execute arbitrary code on the system running kadmind. (CVE-2014-4345) A use-after-free flaw was found in the way the MIT Kerberos libgssapi_krb5 library processed valid context deletion tokens. An attacker able to make an application using the GSS-API library (libgssapi) call the gss_process_context_token() function could use this flaw to crash that application. (CVE-2014-5352) If kadmind were used with an LDAP back end for the KDC database, a remote, authenticated attacker with the permissions to set the password policy could crash kadmind by attempting to use a named ticket policy object as a password policy for a principal. (CVE-2014-5353) A double-free flaw was found in the way MIT Kerberos handled invalid External Data Representation (XDR) data. An authenticated user could use this flaw to crash the MIT Kerberos administration server (kadmind), or other applications using Kerberos libraries, using specially crafted XDR packets. (CVE-2014-9421) It was found that the MIT Kerberos administration server (kadmind) incorrectly accepted certain authentication requests for two-component server principal names. A remote attacker able to acquire a key with a particularly named principal (such as last seen 2020-06-01 modified 2020-06-02 plugin id 81896 published 2015-03-18 reporter This script is Copyright (C) 2015 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/81896 title CentOS 7 : krb5 (CESA-2015:0439) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_3A888A1EB32111E483B2206A8A720317.NASL description The MIT Kerberos team reports : CVE-2014-5353: The krb5_ldap_get_password_policy_from_dn function in plugins/kdb/ldap/libkdb_ldap/ldap_pwd_policy.c in MIT Kerberos 5 (aka krb5) before 1.13.1, when the KDC uses LDAP, allows remote authenticated users to cause a denial of service (daemon crash) via a successful LDAP query with no results, as demonstrated by using an incorrect object type for a password policy. CVE-2014-5354: plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.1, when the KDC uses LDAP, allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) by creating a database entry for a keyless principal, as demonstrated by a kadmin last seen 2020-06-01 modified 2020-06-02 plugin id 81331 published 2015-02-13 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/81331 title FreeBSD : krb5 -- Vulnerabilities in kadmind, libgssrpc, gss_process_context_token VU#540092 (3a888a1e-b321-11e4-83b2-206a8a720317) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-2498-1.NASL description It was discovered that Kerberos incorrectly sent old keys in response to a -randkey -keepold request. An authenticated remote attacker could use this issue to forge tickets by leveraging administrative access. This issue only affected Ubuntu 10.04 LTS, Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-5351) It was discovered that the libgssapi_krb5 library incorrectly processed security context handles. A remote attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2014-5352) Patrik Kis discovered that Kerberos incorrectly handled LDAP queries with no results. An authenticated remote attacker could use this issue to cause the KDC to crash, resulting in a denial of service. (CVE-2014-5353) It was discovered that Kerberos incorrectly handled creating database entries for a keyless principal when using LDAP. An authenticated remote attacker could use this issue to cause the KDC to crash, resulting in a denial of service. (CVE-2014-5354) It was discovered that Kerberos incorrectly handled memory when processing XDR data. A remote attacker could use this issue to cause kadmind to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2014-9421) It was discovered that Kerberos incorrectly handled two-component server principals. A remote attacker could use this issue to perform impersonation attacks. (CVE-2014-9422) It was discovered that the libgssrpc library leaked uninitialized bytes. A remote attacker could use this issue to possibly obtain sensitive information. (CVE-2014-9423). 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 81297 published 2015-02-11 reporter Ubuntu Security Notice (C) 2015-2019 Canonical, Inc. / NASL script (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/81297 title Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS / 14.10 : krb5 vulnerabilities (USN-2498-1) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_63527D0DB9DE11E48A48206A8A720317.NASL description The MIT Kerberos team announces the availability of MIT Kerberos 5 Release 1.12.3 : Fix multiple vulnerabilities in the LDAP KDC back end. [CVE-2014-5354] [CVE-2014-5353] Fix multiple kadmind vulnerabilities, some of which are based in the gssrpc library. [CVE-2014-5352 CVE-2014-5352 CVE-2014-9421 CVE-2014-9422 CVE-2014-9423] last seen 2020-06-01 modified 2020-06-02 plugin id 81432 published 2015-02-23 reporter This script is Copyright (C) 2015-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/81432 title FreeBSD : krb5 1.12 -- New release/fix multiple vulnerabilities (63527d0d-b9de-11e4-8a48-206a8a720317) NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2015-518.NASL description A use-after-free flaw was found in the way the MIT Kerberos libgssapi_krb5 library processed valid context deletion tokens. An attacker able to make an application using the GSS-API library (libgssapi) could call the gss_process_context_token() function and use this flaw to crash that application. (CVE-2014-5352) If kadmind were used with an LDAP back end for the KDC database, a remote, authenticated attacker who has the permissions to set the password policy could crash kadmind by attempting to use a named ticket policy object as a password policy for a principal. (CVE-2014-5353) It was found that the krb5_read_message() function of MIT Kerberos did not correctly sanitize input, and could create invalid krb5_data objects. A remote, unauthenticated attacker could use this flaw to crash a Kerberos child process via a specially crafted request. (CVE-2014-5355) A double-free flaw was found in the way MIT Kerberos handled invalid External Data Representation (XDR) data. An authenticated user could use this flaw to crash the MIT Kerberos administration server (kadmind), or other applications using Kerberos libraries, via specially crafted XDR packets. (CVE-2014-9421) It was found that the MIT Kerberos administration server (kadmind) incorrectly accepted certain authentication requests for two-component server principal names. A remote attacker able to acquire a key with a particularly named principal (such as last seen 2020-06-01 modified 2020-06-02 plugin id 83269 published 2015-05-07 reporter This script is Copyright (C) 2015-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/83269 title Amazon Linux AMI : krb5 (ALAS-2015-518) NASL family Mandriva Local Security Checks NASL id MANDRIVA_MDVSA-2015-009.NASL description Updated krb5 packages fix security vulnerability : In MIT krb5, when kadmind is configured to use LDAP for the KDC database, an authenticated remote attacker can cause a NULL dereference by attempting to use a named ticket policy object as a password policy for a principal. The attacker needs to be authenticated as a user who has the elevated privilege for setting password policy by adding or modifying principals (CVE-2014-5353). last seen 2020-06-01 modified 2020-06-02 plugin id 80428 published 2015-01-09 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/80428 title Mandriva Linux Security Advisory : krb5 (MDVSA-2015:009) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_DBF9E66CBD5011E4A7BA206A8A720317.NASL description The MIT Kerberos team announces the availability of MIT Kerberos 5 Release 1.11.6 : Handle certain invalid RFC 1964 GSS tokens correctly to avoid invalid memory reference vulnerabilities. [CVE-2014-4341 Fix memory management vulnerabilities in GSSAPI SPNEGO. [CVE-2014-4343 CVE-2014-4344] Fix buffer overflow vulnerability in LDAP KDB back end. [CVE-2014-4345] Fix multiple vulnerabilities in the LDAP KDC back end. [CVE-2014-5354 CVE-2014-5353] Fix multiple kadmind vulnerabilities, some of which are based in the gssrpc library. [CVE-2014-5352 CVE-2014-9421 CVE-2014-9422 CVE-2014-9423] last seen 2020-06-01 modified 2020-06-02 plugin id 81534 published 2015-02-26 reporter This script is Copyright (C) 2015-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/81534 title FreeBSD : krb5 1.11 -- New release/fix multiple vulnerabilities (dbf9e66c-bd50-11e4-a7ba-206a8a720317) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2015-0794.NASL description From Red Hat Security Advisory 2015:0794 : Updated krb5 packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6. Red Hat Product Security 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. Kerberos is a networked authentication system which allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos KDC. The following security issues are fixed with this release : A use-after-free flaw was found in the way the MIT Kerberos libgssapi_krb5 library processed valid context deletion tokens. An attacker able to make an application using the GSS-API library (libgssapi) could call the gss_process_context_token() function and use this flaw to crash that application. (CVE-2014-5352) If kadmind were used with an LDAP back end for the KDC database, a remote, authenticated attacker who has the permissions to set the password policy could crash kadmind by attempting to use a named ticket policy object as a password policy for a principal. (CVE-2014-5353) It was found that the krb5_read_message() function of MIT Kerberos did not correctly sanitize input, and could create invalid krb5_data objects. A remote, unauthenticated attacker could use this flaw to crash a Kerberos child process via a specially crafted request. (CVE-2014-5355) A double-free flaw was found in the way MIT Kerberos handled invalid External Data Representation (XDR) data. An authenticated user could use this flaw to crash the MIT Kerberos administration server (kadmind), or other applications using Kerberos libraries, via specially crafted XDR packets. (CVE-2014-9421) It was found that the MIT Kerberos administration server (kadmind) incorrectly accepted certain authentication requests for two-component server principal names. A remote attacker able to acquire a key with a particularly named principal (such as last seen 2020-06-01 modified 2020-06-02 plugin id 82689 published 2015-04-10 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/82689 title Oracle Linux 6 : krb5 (ELSA-2015-0794) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2015-0054.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - fix for CVE-2014-5355 (#1193939) last seen 2020-06-01 modified 2020-06-02 plugin id 82692 published 2015-04-10 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/82692 title OracleVM 3.3 : krb5 (OVMSA-2015-0054) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2015-0439.NASL description From Red Hat Security Advisory 2015:0439 : Updated krb5 packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 7. Red Hat Product Security 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. Kerberos is a networked authentication system which allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos KDC. A NULL pointer dereference flaw was found in the MIT Kerberos SPNEGO acceptor for continuation tokens. A remote, unauthenticated attacker could use this flaw to crash a GSSAPI-enabled server application. (CVE-2014-4344) A buffer overflow was found in the KADM5 administration server (kadmind) when it was used with an LDAP back end for the KDC database. A remote, authenticated attacker could potentially use this flaw to execute arbitrary code on the system running kadmind. (CVE-2014-4345) A use-after-free flaw was found in the way the MIT Kerberos libgssapi_krb5 library processed valid context deletion tokens. An attacker able to make an application using the GSS-API library (libgssapi) call the gss_process_context_token() function could use this flaw to crash that application. (CVE-2014-5352) If kadmind were used with an LDAP back end for the KDC database, a remote, authenticated attacker with the permissions to set the password policy could crash kadmind by attempting to use a named ticket policy object as a password policy for a principal. (CVE-2014-5353) A double-free flaw was found in the way MIT Kerberos handled invalid External Data Representation (XDR) data. An authenticated user could use this flaw to crash the MIT Kerberos administration server (kadmind), or other applications using Kerberos libraries, using specially crafted XDR packets. (CVE-2014-9421) It was found that the MIT Kerberos administration server (kadmind) incorrectly accepted certain authentication requests for two-component server principal names. A remote attacker able to acquire a key with a particularly named principal (such as last seen 2020-06-01 modified 2020-06-02 plugin id 81805 published 2015-03-13 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/81805 title Oracle Linux 7 : krb5 (ELSA-2015-0439) NASL family Debian Local Security Checks NASL id DEBIAN_DLA-1265.NASL description Kerberos, a system for authenticating users and services on a network, was affected by several vulnerabilities. The Common Vulnerabilities and Exposures project identifies the following issues. CVE-2013-1418 Kerberos allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted request when multiple realms are configured. CVE-2014-5351 Kerberos sends old keys in a response to a -randkey -keepold request, which allows remote authenticated users to forge tickets by leveraging administrative access. CVE-2014-5353 When the KDC uses LDAP, allows remote authenticated users to cause a denial of service (daemon crash) via a successful LDAP query with no results, as demonstrated by using an incorrect object type for a password policy. CVE-2014-5355 Kerberos expects that a krb5_read_message data field is represented as a string ending with a last seen 2020-03-17 modified 2018-02-01 plugin id 106536 published 2018-02-01 reporter This script is Copyright (C) 2018-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/106536 title Debian DLA-1265-1 : krb5 security update NASL family SuSE Local Security Checks NASL id OPENSUSE-2015-246.NASL description krb5 was updated to fix three security issues. Remote authenticated users could cause denial of service. On openSUSE 13.1 and 13.2 krb5 was updated to fix the following vulnerabilities : - bnc#910457: CVE-2014-5353: NULL pointer dereference when using a ticket policy name as password name - bnc#918595: CVE-2014-5355: krb5: denial of service in krb5_read_message On openSUSE 13.1 krb5 was updated to fix the following vulnerability : - bnc#910458: CVE-2014-5354: NULL pointer dereference when using keyless entries last seen 2020-06-05 modified 2015-03-20 plugin id 81965 published 2015-03-20 reporter This script is Copyright (C) 2015-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/81965 title openSUSE Security Update : krb5 (openSUSE-2015-246) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2015-0794.NASL description Updated krb5 packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6. Red Hat Product Security 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. Kerberos is a networked authentication system which allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos KDC. The following security issues are fixed with this release : A use-after-free flaw was found in the way the MIT Kerberos libgssapi_krb5 library processed valid context deletion tokens. An attacker able to make an application using the GSS-API library (libgssapi) could call the gss_process_context_token() function and use this flaw to crash that application. (CVE-2014-5352) If kadmind were used with an LDAP back end for the KDC database, a remote, authenticated attacker who has the permissions to set the password policy could crash kadmind by attempting to use a named ticket policy object as a password policy for a principal. (CVE-2014-5353) It was found that the krb5_read_message() function of MIT Kerberos did not correctly sanitize input, and could create invalid krb5_data objects. A remote, unauthenticated attacker could use this flaw to crash a Kerberos child process via a specially crafted request. (CVE-2014-5355) A double-free flaw was found in the way MIT Kerberos handled invalid External Data Representation (XDR) data. An authenticated user could use this flaw to crash the MIT Kerberos administration server (kadmind), or other applications using Kerberos libraries, via specially crafted XDR packets. (CVE-2014-9421) It was found that the MIT Kerberos administration server (kadmind) incorrectly accepted certain authentication requests for two-component server principal names. A remote attacker able to acquire a key with a particularly named principal (such as last seen 2020-06-01 modified 2020-06-02 plugin id 82656 published 2015-04-09 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/82656 title RHEL 6 : krb5 (RHSA-2015:0794) NASL family Scientific Linux Local Security Checks NASL id SL_20150305_KRB5_ON_SL7_X.NASL description A buffer overflow was found in the KADM5 administration server (kadmind) when it was used with an LDAP back end for the KDC database. A remote, authenticated attacker could potentially use this flaw to execute arbitrary code on the system running kadmind. (CVE-2014-4345) A use-after-free flaw was found in the way the MIT Kerberos libgssapi_krb5 library processed valid context deletion tokens. An attacker able to make an application using the GSS-API library (libgssapi) call the gss_process_context_token() function could use this flaw to crash that application. (CVE-2014-5352) If kadmind were used with an LDAP back end for the KDC database, a remote, authenticated attacker with the permissions to set the password policy could crash kadmind by attempting to use a named ticket policy object as a password policy for a principal. (CVE-2014-5353) A double-free flaw was found in the way MIT Kerberos handled invalid External Data Representation (XDR) data. An authenticated user could use this flaw to crash the MIT Kerberos administration server (kadmind), or other applications using Kerberos libraries, using specially crafted XDR packets. (CVE-2014-9421) It was found that the MIT Kerberos administration server (kadmind) incorrectly accepted certain authentication requests for two-component server principal names. A remote attacker able to acquire a key with a particularly named principal (such as last seen 2020-03-18 modified 2015-03-26 plugin id 82255 published 2015-03-26 reporter This script is Copyright (C) 2015-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/82255 title Scientific Linux Security Update : krb5 on SL7.x x86_64 (20150305) NASL family Scientific Linux Local Security Checks NASL id SL_20150409_KRB5_ON_SL6_X.NASL description The following security issues are fixed with this release : A use-after-free flaw was found in the way the MIT Kerberos libgssapi_krb5 library processed valid context deletion tokens. An attacker able to make an application using the GSS-API library (libgssapi) could call the gss_process_context_token() function and use this flaw to crash that application. (CVE-2014-5352) If kadmind were used with an LDAP back end for the KDC database, a remote, authenticated attacker who has the permissions to set the password policy could crash kadmind by attempting to use a named ticket policy object as a password policy for a principal. (CVE-2014-5353) It was found that the krb5_read_message() function of MIT Kerberos did not correctly sanitize input, and could create invalid krb5_data objects. A remote, unauthenticated attacker could use this flaw to crash a Kerberos child process via a specially crafted request. (CVE-2014-5355) A double-free flaw was found in the way MIT Kerberos handled invalid External Data Representation (XDR) data. An authenticated user could use this flaw to crash the MIT Kerberos administration server (kadmind), or other applications using Kerberos libraries, via specially crafted XDR packets. (CVE-2014-9421) It was found that the MIT Kerberos administration server (kadmind) incorrectly accepted certain authentication requests for two-component server principal names. A remote attacker able to acquire a key with a particularly named principal (such as last seen 2020-03-18 modified 2015-04-10 plugin id 82694 published 2015-04-10 reporter This script is Copyright (C) 2015-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/82694 title Scientific Linux Security Update : krb5 on SL6.x i386/x86_64 (20150409) NASL family SuSE Local Security Checks NASL id SUSE_SU-2015-1282-1.NASL description krb5 was updated to fix three security issues. Remote authenticated users could cause denial of service. These security issues were fixed : - CVE-2014-5353: NULL pointer dereference when using a ticket policy name as password name (bsc#910457). - CVE-2014-5354: NULL pointer dereference when using keyless entries (bsc#910458). - CVE-2014-5355: Denial of service in krb5_read_message (bsc#918595). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE 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 84979 published 2015-07-24 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/84979 title SUSE SLED11 / SLES11 Security Update : krb5 (SUSE-SU-2015:1282-1) NASL family Fedora Local Security Checks NASL id FEDORA_2015-7878.NASL description Security fix for CVE-2015-2694 Security fix for CVE-2014-5353 (this was fixed in an older build but the announcement was lost) 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 2020-06-05 modified 2015-06-22 plugin id 84305 published 2015-06-22 reporter This script is Copyright (C) 2015-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/84305 title Fedora 21 : krb5-1.12.2-17.fc21 (2015-7878) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2015-0794.NASL description Updated krb5 packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6. Red Hat Product Security 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. Kerberos is a networked authentication system which allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos KDC. The following security issues are fixed with this release : A use-after-free flaw was found in the way the MIT Kerberos libgssapi_krb5 library processed valid context deletion tokens. An attacker able to make an application using the GSS-API library (libgssapi) could call the gss_process_context_token() function and use this flaw to crash that application. (CVE-2014-5352) If kadmind were used with an LDAP back end for the KDC database, a remote, authenticated attacker who has the permissions to set the password policy could crash kadmind by attempting to use a named ticket policy object as a password policy for a principal. (CVE-2014-5353) It was found that the krb5_read_message() function of MIT Kerberos did not correctly sanitize input, and could create invalid krb5_data objects. A remote, unauthenticated attacker could use this flaw to crash a Kerberos child process via a specially crafted request. (CVE-2014-5355) A double-free flaw was found in the way MIT Kerberos handled invalid External Data Representation (XDR) data. An authenticated user could use this flaw to crash the MIT Kerberos administration server (kadmind), or other applications using Kerberos libraries, via specially crafted XDR packets. (CVE-2014-9421) It was found that the MIT Kerberos administration server (kadmind) incorrectly accepted certain authentication requests for two-component server principal names. A remote attacker able to acquire a key with a particularly named principal (such as last seen 2020-06-01 modified 2020-06-02 plugin id 82667 published 2015-04-10 reporter This script is Copyright (C) 2015-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/82667 title CentOS 6 : krb5 (CESA-2015:0794)
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References
- http://advisories.mageia.org/MGASA-2014-0536.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155828.html
- http://lists.opensuse.org/opensuse-updates/2015-03/msg00061.html
- http://rhn.redhat.com/errata/RHSA-2015-0439.html
- http://rhn.redhat.com/errata/RHSA-2015-0794.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:009
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
- http://www.securityfocus.com/bid/71679
- http://www.securitytracker.com/id/1031376
- http://www.ubuntu.com/usn/USN-2498-1
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=773226
- https://github.com/krb5/krb5/commit/d1f707024f1d0af6e54a18885322d70fa15ec4d3
- https://lists.debian.org/debian-lts-announce/2018/01/msg00040.html