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    CVE-2003-0688

    The DNS map code in Sendmail 8.12.8 and earlier, when using the "enhdnsbl" feature, does not properly initialize certain data structures, which allows remote attackers to cause a denial of service (process crash) via an invalid DNS response that causes Sendmail to free incorrect data.

    Published:Aug 25, 2003
    Last Modified:Apr 16, 2026
    EPS:Sep 3, 2003
    EPSS Score:0.01711
    CVSS Score:5

    Affected Products

    Vendor
    Compaq
    Product
    Tru64
    Vendor
    Freebsd
    Product
    Freebsd
    Vendor
    Openbsd
    Product
    Openbsd
    Vendor
    Redhat
    Product
    Linux
    Vendor
    Redhat
    Product
    Sendmail
    Vendor
    Sendmail
    Product
    Sendmail
    Vendor
    Sgi
    Product
    Irix

    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-2005-0223 (CVSS 5) — The Software Development Kit (SDK) and Run Time Environment (RTE) 1.4.1 and 1.4.2 for Tru64 UNIX allows remote…
    CVE-2003-0914 (CVSS 4.3) — ISC BIND 8.3.x before 8.3.7, and 8.4.x before 8.4.3, allows remote attackers to poison the cache via a malicio…
    CVE-2003-0694 (CVSS 10) — The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code via buffer overflow …
    CVE-2003-0724 (CVSS 7.5) — ssh on HP Tru64 UNIX 5.1B and 5.1A does not properly handle RSA signatures when digital certificates and RSA k…
    CVE-2003-0196 (CVSS 10) — Multiple buffer overflows in Samba before 2.2.8a may allow remote attackers to execute arbitrary code or cause…
    CVE-2003-0201 (CVSS 10) — Buffer overflow in the call_trans2open function in trans2.c for Samba 2.2.x before 2.2.8a, 2.0.10 and earlier …
    CVE-2003-0161 (CVSS 10) — The prescan() function in the address parser (parseaddr.c) in Sendmail before 8.12.9 does not properly handle …
    CVE-2002-2003 (CVSS 5) — ypbind in Compaq Tru64 4.0F, 4.0G, 5.0A, 5.1 and 5.1A allows remote attackers to cause the process to core dum…
    CVE-2002-2002 (CVSS 7.5) — Buffer overflow in libc in Compaq Tru64 4.0F, 5.0, 5.1 and 5.1A allows attackers to execute arbitrary code via…
    CVE-2002-2004 (CVSS 5) — portmapper in Compaq Tru64 4.0G and 5.0A allows remote attackers to cause a denial of service via a flood of p…

    References

    ftp://patches.sgi.com/support/free/security/advisories/20030803-01-P
    http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000727
    http://www.kb.cert.org/vuls/id/993452
    http://www.mandriva.com/security/advisories?name=MDKSA-2003:086
    http://www.novell.com/linux/security/advisories/2003_035_sendmail.html
    http://www.redhat.com/support/errata/RHSA-2003-265.html
    http://www.sendmail.org/dnsmap1.html
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A597
    ftp://patches.sgi.com/support/free/security/advisories/20030803-01-P
    http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000727
    http://www.kb.cert.org/vuls/id/993452
    http://www.mandriva.com/security/advisories?name=MDKSA-2003:086
    http://www.novell.com/linux/security/advisories/2003_035_sendmail.html
    http://www.redhat.com/support/errata/RHSA-2003-265.html
    http://www.sendmail.org/dnsmap1.html
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A597

    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