CVE-2009-0847

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.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 23.40% Top 5%
Vendor Advisory mandriva.com Vendor Advisory sun.com Vendor Advisory gentoo.org Vendor Advisory apple.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory marc.info Vendor Advisory mit.edu
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html
http://www.mandriva.com/security/advisories?name=MDVSA-2009:098 vendor advisory
http://www.securityfocus.com/archive/1/502526/100/0/threaded mailing list
http://www.kb.cert.org/vuls/id/662091 third party advisory
http://www.vupen.com/english/advisories/2009/0960 vdb entry
http://support.apple.com/kb/HT3549
http://support.avaya.com/elmodocs2/security/ASA-2009-142.htm
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6387 vdb entry signature
http://secunia.com/advisories/34637 third party advisory
http://www.vupen.com/english/advisories/2009/2084 vdb entry
http://www.securityfocus.com/bid/34408 vdb entry
http://secunia.com/advisories/34640 third party advisory
http://secunia.com/advisories/35074 third party advisory
http://www.securitytracker.com/id?1021993 vdb entry
http://sunsolve.sun.com/search/document.do?assetkey=1-26-256728-1 vendor advisory
http://security.gentoo.org/glsa/glsa-200904-09.xml vendor advisory
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html
http://www.vupen.com/english/advisories/2009/0976 vdb entry
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html vendor advisory
http://www.ubuntu.com/usn/usn-755-1 vendor advisory
http://www-01.ibm.com/support/docview.wss?uid=swg21396120
http://www.vupen.com/english/advisories/2009/1057 vdb entry
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-001.txt vendor advisory
http://secunia.com/advisories/34617 third party advisory
http://secunia.com/advisories/34628 third party advisory
http://secunia.com/advisories/34734 third party advisory
http://www.vupen.com/english/advisories/2009/2248 vdb entry
http://www.us-cert.gov/cas/techalerts/TA09-133A.html third party advisory us government resource
http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058
http://www.vupen.com/english/advisories/2009/1297 vdb entry
http://secunia.com/advisories/34622 third party advisory
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00206.html vendor advisory
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00205.html vendor advisory
http://wiki.rpath.com/Advisories:rPSA-2009-0058
http://www.securityfocus.com/archive/1/502546/100/0/threaded mailing list
http://secunia.com/advisories/34594 third party advisory
http://www.vupen.com/english/advisories/2009/1106 vdb entry
http://marc.info/?l=bugtraq&m=124896429301168&w=2 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2009-0847?
CVE-2009-0847 has been scored as a medium severity vulnerability.
How to fix CVE-2009-0847?
To fix CVE-2009-0847, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-0847 being actively exploited in the wild?
It is possible that CVE-2009-0847 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~23% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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