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CVE-2005-0366

5.0 · MEDIUM

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…

Published May 2, 2005gnupgCWE-326EPSS 2.95%

Overview

CVE-2005-0366 is a medium-severity vulnerability affecting gnupg gnupg. It was published on May 2, 2005 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from gnupg. Update gnupg to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
gnupggnupg>= 0, < 1.4.1Affected

References

Refeprint.iacr.org/2005/033Refeprint.iacr.org/2005/033.pdfRefsecuritytracker.com/id?1013166Refwww.gentoo.org/security/en/glsa/glsa-200503-29.xmlRefwww.kb.cert.org/vuls/id/303094Refwww.mandriva.com/security/advisories?name=MDKSA-2005:057Refwww.novell.com/linux/security/advisories/2005_07_sr.htmlRefwww.osvdb.org/13775Refwww.pgp.com/library/ctocorner/openpgp.htmlRefwww.securityfocus.com/bid/12529

How CyberStrike helps

Frequently asked questions

What is CVE-2005-0366?

CVE-2005-0366 is a medium-severity vulnerability affecting gnupg gnupg. It was published on May 2, 2005 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2005-0366?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2005-0366?

Check the references section for vendor advisories and patches from gnupg. Update gnupg to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2005-0366?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2005-0366 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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