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    CVE-2006-6143

    The RPC library in Kerberos 5 1.4 through 1.4.4, and 1.5 through 1.5.1, as used in Kerberos administration daemon (kadmind) and other products that use this library, calls an uninitialized function pointer in freed memory, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

    Published:Dec 31, 2006
    Last Modified:Apr 23, 2026
    EPS:Jan 10, 2007
    EPSS Score:0.3072
    CVSS Score:9.3

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Mit
    Product
    Kerberos 5

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-824 Access of Uninitialized Pointer

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-13476 (CVSS 7.3) — IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary co…
    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    http://docs.info.apple.com/article.html?artnum=305391
    http://fedoranews.org/cms/node/2375
    http://fedoranews.org/cms/node/2376
    http://lists.apple.com/archives/Security-announce/2007/Apr/msg00001.html
    http://lists.suse.com/archive/suse-security-announce/2007-Jan/0004.html
    http://osvdb.org/31281
    http://secunia.com/advisories/23667
    http://secunia.com/advisories/23696
    http://secunia.com/advisories/23701
    http://secunia.com/advisories/23706
    http://secunia.com/advisories/23707
    http://secunia.com/advisories/23772
    http://secunia.com/advisories/23903
    http://secunia.com/advisories/24966
    http://security.gentoo.org/glsa/glsa-200701-21.xml
    http://securitytracker.com/id?1017493
    http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2006-002-rpc.txt
    http://www.kb.cert.org/vuls/id/481564
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:008
    http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.006.html
    http://www.securityfocus.com/archive/1/456406/100/0/threaded
    http://www.securityfocus.com/bid/21970
    http://www.ubuntu.com/usn/usn-408-1
    http://www.us-cert.gov/cas/techalerts/TA07-009B.html
    http://www.us-cert.gov/cas/techalerts/TA07-109A.html
    http://www.vupen.com/english/advisories/2007/0111
    http://www.vupen.com/english/advisories/2007/1470
    https://exchange.xforce.ibmcloud.com/vulnerabilities/31422
    https://issues.rpath.com/browse/RPL-925
    http://docs.info.apple.com/article.html?artnum=305391
    http://fedoranews.org/cms/node/2375
    http://fedoranews.org/cms/node/2376
    http://lists.apple.com/archives/Security-announce/2007/Apr/msg00001.html
    http://lists.suse.com/archive/suse-security-announce/2007-Jan/0004.html
    http://osvdb.org/31281
    http://secunia.com/advisories/23667
    http://secunia.com/advisories/23696
    http://secunia.com/advisories/23701
    http://secunia.com/advisories/23706
    http://secunia.com/advisories/23707
    http://secunia.com/advisories/23772
    http://secunia.com/advisories/23903
    http://secunia.com/advisories/24966
    http://security.gentoo.org/glsa/glsa-200701-21.xml
    http://securitytracker.com/id?1017493
    http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2006-002-rpc.txt
    http://www.kb.cert.org/vuls/id/481564
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:008
    http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.006.html
    http://www.securityfocus.com/archive/1/456406/100/0/threaded
    http://www.securityfocus.com/bid/21970
    http://www.ubuntu.com/usn/usn-408-1
    http://www.us-cert.gov/cas/techalerts/TA07-009B.html
    http://www.us-cert.gov/cas/techalerts/TA07-109A.html
    http://www.vupen.com/english/advisories/2007/0111
    http://www.vupen.com/english/advisories/2007/1470
    https://exchange.xforce.ibmcloud.com/vulnerabilities/31422
    https://issues.rpath.com/browse/RPL-925

    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