CVE-2009-0847

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-04-09 · updated 2026-06-16
Weakness: CWE-189

Description

The asn1buf_imbed function in the ASN.1 decoder in MIT Kerberos 5 (aka krb5) 1.6.3, when PK-INIT is used, allows remote attackers to cause a denial of service (application crash) via a crafted length value that triggers an erroneous malloc call, related to incorrect calculations with pointer arithmetic.

Affected products

MIT Kerberos: 5-1.6.3

References

http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
http://marc.info/?l=bugtraq&m=124896429301168&w=2
http://secunia.com/advisories/34594
http://secunia.com/advisories/34617
http://secunia.com/advisories/34622
http://secunia.com/advisories/34628
http://secunia.com/advisories/34637
http://secunia.com/advisories/34640
http://secunia.com/advisories/34734
http://secunia.com/advisories/35074
http://security.gentoo.org/glsa/glsa-200904-09.xml
http://sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1

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