Vulnerability Details : CVE-2009-4212

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.
Publish Date : 2010-01-13 Last Update Date : 2020-01-21

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- CVSS Scores & Vulnerability Types

CVSS Score	10.0
Confidentiality Impact	Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact	Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact	Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity	Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication	Not required (Authentication is not required to exploit the vulnerability.)
Gained Access	None
Vulnerability Type(s)	Denial Of ServiceExecute Code
CWE ID	189

- Additional Vendor Supplied Data

Vendor	Impact	CVSS Score	CVSS Vector	Report Date	Publish Date
Redhat	critical	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C	2009-12-06	2010-01-12

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- Related OVAL Definitions

Title	Definition Id	Family
CVE-2009-4212	oval:org.opensuse.security:def:20094212	unix
DSA-1969 krb5 -- integer underflow	oval:org.mitre.oval:def:7452	unix
DSA-1969-1 krb5 -- integer underflow	oval:org.mitre.oval:def:13574	unix
ELSA-2010:0029: krb5 security update (Critical)	oval:org.mitre.oval:def:22869	unix
Integer Overflow Security Vulnerability in AES and RC4 Decryption in the Solaris Kerberos Crypto Library May Lead to Exe...	oval:org.mitre.oval:def:8192	unix
MIT Kerberos AES and RC4 Decryption Integer Underflow Vulnerabilities	oval:org.mitre.oval:def:7357	unix
Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 ...	oval:org.mitre.oval:def:11272	unix
RHSA-2010:0029: krb5 security update (Critical)	oval:org.mitre.oval:def:21755	unix
RHSA-2010:0029: krb5 security update (Critical)	oval:com.redhat.rhsa:def:20100029	unix

OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2009-4212

#	Product Type	Vendor	Product	Version	Update	Edition	Language
1	Application	MIT	Kerberos	5-1.6.3	*	*	*	Version Details Vulnerabilities
2	Application	MIT	Kerberos 5	1.3	*	*	*	Version Details Vulnerabilities
3	Application	MIT	Kerberos 5	1.3.1	*	*	*	Version Details Vulnerabilities
4	Application	MIT	Kerberos 5	1.3.2	*	*	*	Version Details Vulnerabilities
5	Application	MIT	Kerberos 5	1.3.3	*	*	*	Version Details Vulnerabilities
6	Application	MIT	Kerberos 5	1.3.4	*	*	*	Version Details Vulnerabilities
7	Application	MIT	Kerberos 5	1.3.5	*	*	*	Version Details Vulnerabilities
8	Application	MIT	Kerberos 5	1.3.6	*	*	*	Version Details Vulnerabilities
9	Application	MIT	Kerberos 5	1.4	*	*	*	Version Details Vulnerabilities
10	Application	MIT	Kerberos 5	1.4.1	*	*	*	Version Details Vulnerabilities
11	Application	MIT	Kerberos 5	1.4.2	*	*	*	Version Details Vulnerabilities
12	Application	MIT	Kerberos 5	1.4.3	*	*	*	Version Details Vulnerabilities
13	Application	MIT	Kerberos 5	1.4.4	*	*	*	Version Details Vulnerabilities
14	Application	MIT	Kerberos 5	1.5	*	*	*	Version Details Vulnerabilities
15	Application	MIT	Kerberos 5	1.5.1	*	*	*	Version Details Vulnerabilities
16	Application	MIT	Kerberos 5	1.5.2	*	*	*	Version Details Vulnerabilities
17	Application	MIT	Kerberos 5	1.5.3	*	*	*	Version Details Vulnerabilities
18	Application	MIT	Kerberos 5	1.6	*	*	*	Version Details Vulnerabilities
19	Application	MIT	Kerberos 5	1.6.1	*	*	*	Version Details Vulnerabilities
20	Application	MIT	Kerberos 5	1.6.2	*	*	*	Version Details Vulnerabilities
21	Application	MIT	Kerberos 5	1.7	*	*	*	Version Details Vulnerabilities