Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 (aka krb5) 1.3 through 1.6.3, and 1.7 before 1.7.1, allow remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code by providing ciphertext with a length that is too short to be valid.
CVE-2009-4212 is a security vulnerability that . Impacting 2 products from mit, from mit organizations running these solutions should prioritize assessment and patching.
Documented in 2010, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.
2010-01-13T19:30:00.607
2026-04-23T00:35:47.467
Modified
CVSSv2: 10.0 (HIGH)
AV:N/AC:L/Au:N/C:C/I:C/A:C
10.0
10.0
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | mit | kerberos | 5-1.6.3 | Yes |
| Application | mit | kerberos_5 | 1.3 | Yes |
| Application | mit | kerberos_5 | 1.3.1 | Yes |
| Application | mit | kerberos_5 | 1.3.2 | Yes |
| Application | mit | kerberos_5 | 1.3.3 | Yes |
| Application | mit | kerberos_5 | 1.3.4 | Yes |
| Application | mit | kerberos_5 | 1.3.5 | Yes |
| Application | mit | kerberos_5 | 1.3.6 | Yes |
| Application | mit | kerberos_5 | 1.4 | Yes |
| Application | mit | kerberos_5 | 1.4.1 | Yes |
| Application | mit | kerberos_5 | 1.4.2 | Yes |
| Application | mit | kerberos_5 | 1.4.3 | Yes |
| Application | mit | kerberos_5 | 1.4.4 | Yes |
| Application | mit | kerberos_5 | 1.5 | Yes |
| Application | mit | kerberos_5 | 1.5.1 | Yes |
| Application | mit | kerberos_5 | 1.5.2 | Yes |
| Application | mit | kerberos_5 | 1.5.3 | Yes |
| Application | mit | kerberos_5 | 1.6 | Yes |
| Application | mit | kerberos_5 | 1.6.1 | Yes |
| Application | mit | kerberos_5 | 1.6.2 | Yes |
| Application | mit | kerberos_5 | 1.7 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For mit's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.