CVE-2017-11462: Double Free
First published: Wed Sep 06 2017(Updated: )
Double free vulnerability in MIT Kerberos 5 (aka krb5) allows attackers to have unspecified impact via vectors involving automatic deletion of security contexts on error.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Kerberos | =1.14 | |
| Kerberos | =1.14-alpha1 | |
| Kerberos | =1.14-beta1 | |
| Kerberos | =1.14-beta2 | |
| Kerberos | =1.14.1 | |
| Kerberos | =1.14.2 | |
| Kerberos | =1.14.3 | |
| Kerberos | =1.14.4 | |
| Kerberos | =1.14.5 | |
| Kerberos | =1.15 | |
| Kerberos | =1.15.1 | |
| Kerberos | =1.15.1-beta1 | |
| Kerberos | =1.15.1-beta2 | |
| Red Hat Fedora | =25 | |
| Red Hat Fedora | =26 |
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Reference Links
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=8598
- https://github.com/krb5/krb5/commit/56f7b1bc95a2a3eeb420e069e7655fb181ade5cf
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1488874
- https://bugzilla.redhat.com/show_bug.cgi?id=1488873
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2FPRUP4YVOEBGEROUYWZFEQ64HTMGNED/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2FPRUP4YVOEBGEROUYWZFEQ64HTMGNED/
Frequently Asked Questions
What is the severity of CVE-2017-11462?
The severity of CVE-2017-11462 is classified as medium impact due to the possibility of unspecified impacts through automatic deletion of security contexts.
How do I fix CVE-2017-11462?
To fix CVE-2017-11462, upgrade to the latest patched version of MIT Kerberos 5, specifically versions 1.14.6 or later.
Which versions of MIT Kerberos 5 are affected by CVE-2017-11462?
CVE-2017-11462 affects MIT Kerberos 5 versions 1.14.0 to 1.15.1, including various beta versions.
Can CVE-2017-11462 lead to remote code execution?
CVE-2017-11462 does not directly lead to remote code execution, but it could potentially allow for an elevation of privileges through the vulnerability.
Is CVE-2017-11462 specific to any operating system?
CVE-2017-11462 primarily affects MIT Kerberos 5 implementations on various UNIX-like operating systems that utilize these Kerberos versions.
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- agent/author
- agent/description
- agent/event
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2017-11462
- agent/trending
- agent/source
- agent/weakness
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/mit
- canonical/kerberos
- version/kerberos/1.14
- version/kerberos/1.14-alpha1
- version/kerberos/1.14-beta1
- version/kerberos/1.14-beta2
- version/kerberos/1.14.1
- version/kerberos/1.14.2
- version/kerberos/1.14.3
- version/kerberos/1.14.4
- version/kerberos/1.14.5
- version/kerberos/1.15
- version/kerberos/1.15.1
- version/kerberos/1.15.1-beta1
- version/kerberos/1.15.1-beta2
- vendor/fedoraproject
- canonical/red hat fedora
- version/red hat fedora/25
- version/red hat fedora/26