Vulnerability Monitor

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CVE-2005-0366

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.

Published

2005-05-02T04:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-326

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gnupg	gnupg	< 1.4.1	Yes

References

http://eprint.iacr.org/2005/033 Third Party Advisory ([email protected])
http://eprint.iacr.org/2005/033.pdf Technical Description, Third Party Advisory ([email protected])
http://securitytracker.com/id?1013166 Third Party Advisory, VDB Entry ([email protected])
http://www.gentoo.org/security/en/glsa/glsa-200503-29.xml Third Party Advisory ([email protected])
http://www.kb.cert.org/vuls/id/303094 Third Party Advisory, US Government Resource ([email protected])
http://www.mandriva.com/security/advisories?name=MDKSA-2005:057 Broken Link ([email protected])
http://www.novell.com/linux/security/advisories/2005_07_sr.html Broken Link ([email protected])
http://www.osvdb.org/13775 Broken Link ([email protected])
http://www.pgp.com/library/ctocorner/openpgp.html Broken Link ([email protected])
http://www.securityfocus.com/bid/12529 Third Party Advisory, VDB Entry ([email protected])
http://eprint.iacr.org/2005/033 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://eprint.iacr.org/2005/033.pdf Technical Description, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://securitytracker.com/id?1013166 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.gentoo.org/security/en/glsa/glsa-200503-29.xml Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.kb.cert.org/vuls/id/303094 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDKSA-2005:057 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.novell.com/linux/security/advisories/2005_07_sr.html Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.osvdb.org/13775 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.pgp.com/library/ctocorner/openpgp.html Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/12529 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)