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    CVE-2003-0255

    The key validation code in GnuPG before 1.2.2 does not properly determine the validity of keys with multiple user IDs and assigns the greatest validity of the most valid user ID, which prevents GnuPG from warning the encrypting user when a user ID does not have a trusted path.

    Published:May 4, 2003
    Last Modified:Apr 16, 2026
    EPS:May 7, 2003
    EPSS Score:0.04101
    CVSS Score:10

    Affected Products

    Vendor
    Gnu
    Product
    Privacy Guard
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    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-2006-6235 (CVSS 10) — A "stack overwrite" vulnerability in GnuPG (gpg) 1.x before 1.4.6, 2.x before 2.0.2, and 1.9.0 through 1.9.95 …
    CVE-2006-0049 (CVSS 5) — gpg in GnuPG before 1.4.2.2 does not properly verify non-detached signatures, which allows attackers to inject…
    CVE-2006-0455 (CVSS 4.6) — gpgv in GnuPG before 1.4.2.1, when using unattended signature verification, returns a 0 exit code in certain c…
    CVE-2003-0978 (CVSS 7.5) — Format string vulnerability in gpgkeys_hkp (experimental HKP interface) for the GnuPG (gpg) client 1.2.3 and e…
    CVE-2003-0971 (CVSS 5) — GnuPG (GPG) 1.0.2, and other versions up to 1.2.3, creates ElGamal type 20 (sign+encrypt) keys using the same …
    CVE-2001-0522 (CVSS 7.5) — Format string vulnerability in Gnu Privacy Guard (aka GnuPG or gpg) 1.05 and earlier can allow an attacker to …
    CVE-2001-0072 (CVSS 5) — gpg (aka GnuPG) 1.0.4 and other versions imports both public and private keys from public key servers without …
    CVE-2001-0071 (CVSS 2.1) — gpg (aka GnuPG) 1.0.4 and other versions does not properly verify detached signatures, which allows attackers …
    CVE-2000-0974 (CVSS 7.5) — GnuPG (gpg) 1.0.3 does not properly check all signatures of a file containing multiple documents, which allows…

    References

    http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000694
    http://marc.info/?l=bugtraq&m=105215110111174&w=2
    http://marc.info/?l=bugtraq&m=105301357425157&w=2
    http://marc.info/?l=bugtraq&m=105311804129104&w=2
    http://marc.info/?l=bugtraq&m=105362224514081&w=2
    http://www.kb.cert.org/vuls/id/397604
    http://www.linuxsecurity.com/advisories/engarde_advisory-3258.html
    http://www.linuxsecurity.com/advisories/gentoo_advisory-3266.html
    http://www.mandriva.com/security/advisories?name=MDKSA-2003:061
    http://www.osvdb.org/4947
    http://www.redhat.com/support/errata/RHSA-2003-175.html
    http://www.redhat.com/support/errata/RHSA-2003-176.html
    http://www.securityfocus.com/bid/7497
    http://www.turbolinux.com/security/TLSA-2003-34.txt
    https://exchange.xforce.ibmcloud.com/vulnerabilities/11930
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A135
    http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000694
    http://marc.info/?l=bugtraq&m=105215110111174&w=2
    http://marc.info/?l=bugtraq&m=105301357425157&w=2
    http://marc.info/?l=bugtraq&m=105311804129104&w=2
    http://marc.info/?l=bugtraq&m=105362224514081&w=2
    http://www.kb.cert.org/vuls/id/397604
    http://www.linuxsecurity.com/advisories/engarde_advisory-3258.html
    http://www.linuxsecurity.com/advisories/gentoo_advisory-3266.html
    http://www.mandriva.com/security/advisories?name=MDKSA-2003:061
    http://www.osvdb.org/4947
    http://www.redhat.com/support/errata/RHSA-2003-175.html
    http://www.redhat.com/support/errata/RHSA-2003-176.html
    http://www.securityfocus.com/bid/7497
    http://www.turbolinux.com/security/TLSA-2003-34.txt
    https://exchange.xforce.ibmcloud.com/vulnerabilities/11930
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A135

    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