CVE-2012-1015: Input Validation
First published: Mon Aug 06 2012(Updated: )
The kdc_handle_protected_negotiation function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x, 1.9.x before 1.9.5, and 1.10.x before 1.10.3 attempts to calculate a checksum before verifying that the key type is appropriate for a checksum, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized pointer free, heap memory corruption, and daemon crash) via a crafted AS-REQ request.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| MIT Kerberos 5 Application | =1.8 | |
| MIT Kerberos 5 Application | =1.8.1 | |
| MIT Kerberos 5 Application | =1.8.2 | |
| MIT Kerberos 5 Application | =1.8.3 | |
| MIT Kerberos 5 Application | =1.8.4 | |
| MIT Kerberos 5 Application | =1.8.5 | |
| MIT Kerberos 5 Application | =1.8.6 | |
| MIT Kerberos 5 Application | =1.9.4 | |
| MIT Kerberos 5 Application | =1.10 | |
| MIT Kerberos 5 Application | =1.10.1 | |
| MIT Kerberos 5 Application | =1.10.2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2012-1015?
CVE-2012-1015 has a High severity rating due to the potential for remote code execution.
How do I fix CVE-2012-1015?
To fix CVE-2012-1015, upgrade MIT Kerberos 5 to version 1.9.5 or later for 1.9.x or to version 1.10.3 or later for 1.10.x.
What versions of MIT Kerberos are affected by CVE-2012-1015?
CVE-2012-1015 affects MIT Kerberos 5 versions 1.8.x up to 1.8.6, 1.9.x before 1.9.5, and 1.10.x before 1.10.3.
Is there a workaround for CVE-2012-1015?
There are no specific workarounds for CVE-2012-1015; the recommended action is to upgrade to a fixed version.
What is the impact of CVE-2012-1015?
The impact of CVE-2012-1015 can lead to remote attackers executing arbitrary code on vulnerable systems.
- agent/type
- agent/first-publish-date
- agent/last-modified-date
- agent/references
- agent/description
- agent/author
- agent/severity
- agent/weakness
- agent/remedy
- agent/event
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/softwarecombine
- agent/tags
- vendor/mit
- canonical/mit kerberos 5 application
- version/mit kerberos 5 application/1.8
- version/mit kerberos 5 application/1.8.1
- version/mit kerberos 5 application/1.8.2
- version/mit kerberos 5 application/1.8.3
- version/mit kerberos 5 application/1.8.4
- version/mit kerberos 5 application/1.8.5
- version/mit kerberos 5 application/1.8.6
- version/mit kerberos 5 application/1.9.4
- version/mit kerberos 5 application/1.10
- version/mit kerberos 5 application/1.10.1
- version/mit kerberos 5 application/1.10.2