CVE-2015-2697
First published: Mon Nov 09 2015(Updated: )
The build_principal_va function in lib/krb5/krb/bld_princ.c in MIT Kerberos 5 (aka krb5) before 1.14 allows remote authenticated users to cause a denial of service (out-of-bounds read and KDC crash) via an initial '\0' character in a long realm field within a TGS request.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Kerberos | <1.14 | |
| Oracle Solaris and Zettabyte File System (ZFS) | =11.3 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =15.04 | |
| Ubuntu | =15.10 | |
| Debian Linux | =7.0 | |
| Debian Linux | =8.0 | |
| Debian Linux | =9.0 | |
| SUSE Linux | =42.1 | |
| openSUSE | =13.1 | |
| openSUSE | =13.2 | |
| SUSE Linux Enterprise Desktop | =12 | |
| SUSE Linux Enterprise Server | =12 | |
| SUSE Linux Enterprise Software Development Kit | =12 |
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Reference Links
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=8252
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00006.html
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00014.html
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00022.html
- http://www.debian.org/security/2015/dsa-3395
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/77581
- http://www.securitytracker.com/id/1034084
- http://www.ubuntu.com/usn/USN-2810-1
- https://github.com/krb5/krb5/commit/f0c094a1b745d91ef2f9a4eae2149aac026a5789
- https://security.gentoo.org/glsa/201611-14
Frequently Asked Questions
What is the severity of CVE-2015-2697?
CVE-2015-2697 is classified as a denial of service vulnerability that affects certain versions of MIT Kerberos 5.
How do I fix CVE-2015-2697?
To fix CVE-2015-2697, upgrade to MIT Kerberos 5 version 1.14 or later.
What software is affected by CVE-2015-2697?
CVE-2015-2697 affects various operating systems including specific versions of MIT Kerberos 5, Oracle Solaris, Ubuntu Linux, Debian GNU/Linux, and openSUSE.
What type of attack does CVE-2015-2697 enable?
CVE-2015-2697 allows remote authenticated users to trigger a denial of service by causing an out-of-bounds read and KDC crash.
Is CVE-2015-2697 easy to exploit?
The exploitation of CVE-2015-2697 involves sending a TGS request with an initial '\0' character in the realm field, which requires some knowledge of the system configuration.
- agent/type
- agent/references
- agent/severity
- agent/weakness
- agent/author
- agent/remedy
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/mit
- canonical/kerberos
- vendor/oracle
- canonical/oracle solaris and zettabyte file system (zfs)
- version/oracle solaris and zettabyte file system (zfs)/11.3
- vendor/canonical
- canonical/ubuntu
- version/ubuntu/12.04
- version/ubuntu/14.04
- version/ubuntu/15.04
- version/ubuntu/15.10
- vendor/debian
- canonical/debian linux
- version/debian linux/7.0
- version/debian linux/8.0
- version/debian linux/9.0
- vendor/opensuse
- canonical/suse linux
- version/suse linux/42.1
- canonical/opensuse
- version/opensuse/13.1
- version/opensuse/13.2
- vendor/suse
- canonical/suse linux enterprise desktop
- version/suse linux enterprise desktop/12
- canonical/suse linux enterprise server
- version/suse linux enterprise server/12
- canonical/suse linux enterprise software development kit
- version/suse linux enterprise software development kit/12