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    CVE-2004-0644

    The asn1buf_skiptail function in the ASN.1 decoder library for MIT Kerberos 5 (krb5) 1.2.2 through 1.3.4 allows remote attackers to cause a denial of service (infinite loop) via a certain BER encoding.

    Published:Aug 31, 2004
    Last Modified:Apr 16, 2026
    EPS:Sep 10, 2004
    EPSS Score:0.08582
    CVSS Score:5

    Affected Products

    Vendor
    Mit
    Product
    Kerberos 5
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-40356 (CVSS 5.9) — In MIT Kerberos 5 (aka krb5) before 1.22.3, there is an integer underflow and resultant out-of-bounds read if …
    CVE-2026-40355 (CVSS 5.9) — In MIT Kerberos 5 (aka krb5) before 1.22.3, there is a NULL pointer dereference if an application calls gss_ac…
    CVE-2024-37370 (CVSS 7.5) — In MIT Kerberos 5 (aka krb5) before 1.21.3, an attacker can modify the plaintext Extra Count field of a confid…
    CVE-2024-37371 (CVSS 9.1) — In MIT Kerberos 5 (aka krb5) before 1.21.3, an attacker can cause invalid memory reads during GSS message toke…
    CVE-2024-26462 (CVSS 5.5) — Kerberos 5 (aka krb5) 1.21.2 contains a memory leak vulnerability in /krb5/src/kdc/ndr.c.…
    CVE-2024-26461 (CVSS 7.5) — Kerberos 5 (aka krb5) 1.21.2 contains a memory leak vulnerability in /krb5/src/lib/gssapi/krb5/k5sealv3.c.…
    CVE-2024-26458 (CVSS 5.3) — Kerberos 5 (aka krb5) 1.21.2 contains a memory leak in /krb5/src/lib/rpc/pmap_rmt.c.…
    CVE-2025-24528 (CVSS 7.1) — In MIT Kerberos 5 (aka krb5) before 1.22 (with incremental propagation), there is an integer overflow for a la…
    CVE-2023-39975 (CVSS 8.8) — kdc/do_tgs_req.c in MIT Kerberos 5 (aka krb5) 1.21 before 1.21.2 has a double free that is reachable if an aut…
    CVE-2023-36054 (CVSS 6.5) — lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitia…

    References

    http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000860
    http://marc.info/?l=bugtraq&m=109508872524753&w=2
    http://rhn.redhat.com/errata/RHSA-2004-350.html
    http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2004-003-asn1.txt
    http://www.debian.org/security/2004/dsa-543
    http://www.gentoo.org/security/en/glsa/glsa-200409-09.xml
    http://www.kb.cert.org/vuls/id/550464
    http://www.securityfocus.com/bid/11079
    http://www.trustix.net/errata/2004/0045/
    http://www.us-cert.gov/cas/techalerts/TA04-247A.html
    https://exchange.xforce.ibmcloud.com/vulnerabilities/17160
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10014
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2139
    http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000860
    http://marc.info/?l=bugtraq&m=109508872524753&w=2
    http://rhn.redhat.com/errata/RHSA-2004-350.html
    http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2004-003-asn1.txt
    http://www.debian.org/security/2004/dsa-543
    http://www.gentoo.org/security/en/glsa/glsa-200409-09.xml
    http://www.kb.cert.org/vuls/id/550464
    http://www.securityfocus.com/bid/11079
    http://www.trustix.net/errata/2004/0045/
    http://www.us-cert.gov/cas/techalerts/TA04-247A.html
    https://exchange.xforce.ibmcloud.com/vulnerabilities/17160
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10014
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2139

    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