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    CVE-2009-0847

    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.

    Published:Apr 7, 2009
    Last Modified:Apr 23, 2026
    EPS:Apr 9, 2009
    EPSS Score:0.20287
    CVSS Score:4.3

    Affected Products

    Vendor
    Mit
    Product
    Kerberos

    Exploits

    No exploit reference

    Related CVEs

    CVE-2018-20217 (CVSS 5.3) — A Reachable Assertion issue was discovered in the KDC in MIT Kerberos 5 (aka krb5) before 1.17. If an attacker…
    CVE-2018-5709 (CVSS 7.5) — An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" i…
    CVE-2018-5710 (CVSS 6.5) — An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function "strlen" is gettin…
    CVE-2017-11368 (CVSS 6.5) — In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC assertion failure by sen…
    CVE-2014-5354 (CVSS 3.5) — plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.1, w…
    CVE-2014-4342 (CVSS 5) — MIT Kerberos 5 (aka krb5) 1.7.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of serv…
    CVE-2013-6800 (CVSS 4) — An unspecified third-party database module for the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) …
    CVE-2011-0282 (CVSS 5) — The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.6.x through 1.9, when an LDAP backend is used…
    CVE-2011-0281 (CVSS 5) — The unparse implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.6.x through 1.9…
    CVE-2010-1323 (CVSS 3.7) — MIT Kerberos 5 (aka krb5) 1.3.x, 1.4.x, 1.5.x, 1.6.x, 1.7.x, and 1.8.x through 1.8.3 does not properly determi…

    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
    http://support.apple.com/kb/HT3549
    http://support.avaya.com/elmodocs2/security/ASA-2009-142.htm
    http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html
    http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html
    http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-001.txt
    http://wiki.rpath.com/Advisories:rPSA-2009-0058
    http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058
    http://www-01.ibm.com/support/docview.wss?uid=swg21396120
    http://www.kb.cert.org/vuls/id/662091
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:098
    http://www.securityfocus.com/archive/1/502526/100/0/threaded
    http://www.securityfocus.com/archive/1/502546/100/0/threaded
    http://www.securityfocus.com/bid/34408
    http://www.securitytracker.com/id?1021993
    http://www.ubuntu.com/usn/usn-755-1
    http://www.us-cert.gov/cas/techalerts/TA09-133A.html
    http://www.vupen.com/english/advisories/2009/0960
    http://www.vupen.com/english/advisories/2009/0976
    http://www.vupen.com/english/advisories/2009/1057
    http://www.vupen.com/english/advisories/2009/1106
    http://www.vupen.com/english/advisories/2009/1297
    http://www.vupen.com/english/advisories/2009/2084
    http://www.vupen.com/english/advisories/2009/2248
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6387
    https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00205.html
    https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00206.html
    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
    http://support.apple.com/kb/HT3549
    http://support.avaya.com/elmodocs2/security/ASA-2009-142.htm
    http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047180.html
    http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5047181.html
    http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-001.txt
    http://wiki.rpath.com/Advisories:rPSA-2009-0058
    http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0058
    http://www-01.ibm.com/support/docview.wss?uid=swg21396120
    http://www.kb.cert.org/vuls/id/662091
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:098
    http://www.securityfocus.com/archive/1/502526/100/0/threaded
    http://www.securityfocus.com/archive/1/502546/100/0/threaded
    http://www.securityfocus.com/bid/34408
    http://www.securitytracker.com/id?1021993
    http://www.ubuntu.com/usn/usn-755-1
    http://www.us-cert.gov/cas/techalerts/TA09-133A.html
    http://www.vupen.com/english/advisories/2009/0960
    http://www.vupen.com/english/advisories/2009/0976
    http://www.vupen.com/english/advisories/2009/1057
    http://www.vupen.com/english/advisories/2009/1106
    http://www.vupen.com/english/advisories/2009/1297
    http://www.vupen.com/english/advisories/2009/2084
    http://www.vupen.com/english/advisories/2009/2248
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6387
    https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00205.html
    https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00206.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High