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Vulnerability record · CVE-2003-0255 · published 27 May 2003

CVE-2003-0255: Gnu privacy guard vulnerability

Gnu · Privacy Guard

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.

10.0 CVSS 2.0 High EPSS 6.6% · top 6.4%
10.0CVSS 2.0 base score
6.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
32References
16 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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 US Government Resource
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 PatchVendor Advisory
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 US Government Resource
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 PatchVendor Advisory
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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2006-6235Gnu privacy guard vulnerabilityA "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 allows attackers to execute arbitrary c…EPSS 5.9%7.5CVE-2003-0978Gnu privacy guard vulnerabilityFormat string vulnerability in gpgkeys_hkp (experimental HKP interface) for the GnuPG (gpg) client 1.2.3 and earlier, and 1.3.3 and earlier, allows r…EPSS 2.8%7.5CVE-2001-0522Gnu privacy guard vulnerabilityFormat string vulnerability in Gnu Privacy Guard (aka GnuPG or gpg) 1.05 and earlier can allow an attacker to gain privileges via format strings in t…EPSS 14%7.5CVE-2000-0974Gnu privacy guard vulnerabilityGnuPG (gpg) 1.0.3 does not properly check all signatures of a file containing multiple documents, which allows an attacker to modify contents of all …EPSS 3.0%5.0CVE-2006-0049Gnu privacy guard vulnerabilitygpg in GnuPG before 1.4.2.2 does not properly verify non-detached signatures, which allows attackers to inject unsigned data via a data packet that i…EPSS 2.4%5.0CVE-2003-0971Gnu privacy guard vulnerabilityGnuPG (GPG) 1.0.2, and other versions up to 1.2.3, creates ElGamal type 20 (sign+encrypt) keys using the same key component for encryption as for sig…EPSS 2.9%5.0CVE-2001-0072Gnu privacy guard vulnerabilitygpg (aka GnuPG) 1.0.4 and other versions imports both public and private keys from public key servers without notifying the user about the private ke…EPSS 2.0%4.6CVE-2006-0455Gnu privacy guard vulnerabilitygpgv in GnuPG before 1.4.2.1, when using unattended signature verification, returns a 0 exit code in certain cases even when the detached signature f…EPSS 1.4%

Source: NIST National Vulnerability Database (record CVE-2003-0255), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.