The iakerb_gss_export_sec_context function in lib/gssapi/krb5/iakerb.c in MIT Kerberos 5 (aka krb5) 1.14 pre-release 2015-09-14 improperly accesses a certain pointer, which allows remote authenticated users to cause a denial of service (memory corruption) or possibly have unspecified other impact by interacting with an application that calls the gss_export_sec_context function. NOTE: this vulnerability exists because of an incorrect fix for CVE-2015-2696.

The krb5 package was updated to fix the following security issue :

  - CVE-2015-2698: Fixed a memory corruption regression     introduced by resolving of CVE-2015-2698 (bsc#954204).

The krb5 package was updated to fix the following security issue :

  - CVE-2015-2698: Fixed a memory corruption regression     introduced by resolving of CVE-2015-2698 (bsc#954204).

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.

The krb5 package was update to fix the following security issue :

  - CVE-2015-2698: Fixed a memory corruption regression     introduced by resolution of CVE-2015-2698 (bsc#954204).

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2810-1 advisory.

    It was discovered that the Kerberos kpasswd service incorrectly handled certain UDP packets. A remote     attacker could possibly use this issue to cause resource consumption, resulting in a denial of service.
    This issue only affected Ubuntu 12.04 LTS. (CVE-2002-2443)

    It was discovered that Kerberos incorrectly handled null bytes in certain data fields. A remote attacker     could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 12.04 LTS and     Ubuntu 14.04 LTS. (CVE-2014-5355)

    It was discovered that the Kerberos kdcpreauth modules incorrectly tracked certain client requests. A     remote attacker could possibly use this issue to bypass intended preauthentication requirements. This     issue only affected Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-2694)

    It was discovered that Kerberos incorrectly handled certain SPNEGO packets. A remote attacker could     possibly use this issue to cause a denial of service. (CVE-2015-2695)

    It was discovered that Kerberos incorrectly handled certain IAKERB packets. A remote attacker could     possibly use this issue to cause a denial of service. (CVE-2015-2696, CVE-2015-2698)

    It was discovered that Kerberos incorrectly handled certain TGS requests. A remote attacker could possibly     use this issue to cause a denial of service. (CVE-2015-2697)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
87632	openSUSE Security Update : krb5 (openSUSE-2015-961)	Nessus	SuSE Local Security Checks	high
87524	SUSE SLED12 / SLES12 Security Update : krb5 (SUSE-SU-2015:2302-1)	Nessus	SuSE Local Security Checks	high
87003	openSUSE Security Update : krb5 (openSUSE-2015-784)	Nessus	SuSE Local Security Checks	high
86872	Ubuntu 14.04 LTS : Kerberos vulnerabilities (USN-2810-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2015-2698

medium

Tenable Plugins

high

high

high

high