CVE-2005-0366

Name: CVE-2005-0366
Creator: NVD / NIST
Published: 2005-05-02T04:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.95%

Last modified Jun 16, 2026

CVE-2005-0366 is a vulnerability of currently unknown severity. The integrity check feature in OpenPGP, when handling a message that was encrypted using cipher feedback (CFB) mode, allows remote attackers to recover part of the plaintext via a chosen-ciphertext attack when the first 2 bytes of a message block are known, and an oracle or other mechanism is available to determine whether an integrity check failed.. EPSS estimates a 2.95% chance of exploitation in the next 30 days.

Description

The integrity check feature in OpenPGP, when handling a message that was encrypted using cipher feedback (CFB) mode, allows remote attackers to recover part of the plaintext via a chosen-ciphertext attack when the first 2 bytes of a message block are known, and an oracle or other mechanism is available to determine whether an integrity check failed.

Metrics

EPSS Probability

2.95%

85.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-326

Affected Software

Vendor	Product	Versions
Gnupg	Gnupg	< 1.4.1

References

http://eprint.iacr.org/2005/033Third Party Advisory
http://eprint.iacr.org/2005/033.pdfTechnical Description, Third Party Advisory
http://securitytracker.com/id?1013166Third Party Advisory, VDB Entry
http://www.gentoo.org/security/en/glsa/glsa-200503-29.xmlThird Party Advisory
http://www.kb.cert.org/vuls/id/303094Third Party Advisory, US Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2005:057Broken Link
http://www.novell.com/linux/security/advisories/2005_07_sr.htmlBroken Link
http://www.osvdb.org/13775Broken Link
http://www.pgp.com/library/ctocorner/openpgp.htmlBroken Link
http://www.securityfocus.com/bid/12529Third Party Advisory, VDB Entry
http://eprint.iacr.org/2005/033Third Party Advisory
http://eprint.iacr.org/2005/033.pdfTechnical Description, Third Party Advisory
http://securitytracker.com/id?1013166Third Party Advisory, VDB Entry
http://www.gentoo.org/security/en/glsa/glsa-200503-29.xmlThird Party Advisory
http://www.kb.cert.org/vuls/id/303094Third Party Advisory, US Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2005:057Broken Link
http://www.novell.com/linux/security/advisories/2005_07_sr.htmlBroken Link
http://www.osvdb.org/13775Broken Link
http://www.pgp.com/library/ctocorner/openpgp.htmlBroken Link
http://www.securityfocus.com/bid/12529Third Party Advisory, VDB Entry

Timeline

Published: May 2, 2005
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2005-0366?

How severe is CVE-2005-0366?

Severity scoring for CVE-2005-0366 is pending analysis. The EPSS model estimates a 2.95% probability of exploitation in the next 30 days.

How do I fix CVE-2005-0366?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2005-0366?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST