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 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 Feb 11, 2005
5.0
MEDIUMCVSS 2.0
EPSS 2.95%
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
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
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.95% 0.02946
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02946
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.95% (0.02946) | 86.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.95% (0.02946) | 85.31th | v5 (v2026.06.15) |
| Mar 30, 2025 | 7.68% (0.07683) | 91.08th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.49% (0.05493) | 83.31th | v4 (v2025.03.14) |
| Mar 17, 2025 | 7.68% (0.07683) | 91.28th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.59% (0.00592) | 79.04th | v3 (v2023.03.01) |
| Apr 11, 2024 | 0.59% (0.00592) | 78.01th | v3 (v2023.03.01) |
| Jan 19, 2024 | 0.59% (0.00592) | 76.01th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.67% (0.00673) | 76.69th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02172) | 80.77th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.17% (0.02172) | 78.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.17% (0.02172) | 57.73th | v2 (v2022.01.01) |
Weaknesses (1)
References (10)
- http://eprint.iacr.org/2005/033 x_refsource_MISCThird Party Advisory
- http://eprint.iacr.org/2005/033.pdf x_refsource_MISCTechnical DescriptionThird Party Advisory
- http://securitytracker.com/id?1013166 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.gentoo.org/security/en/glsa/glsa-200503-29.xml vendor-advisoryx_refsource_GENTOOThird Party Advisory
- http://www.kb.cert.org/vuls/id/303094 third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource
- http://www.mandriva.com/security/advisories?name=MDKSA-2005:057 vendor-advisoryx_refsource_MANDRAKEBroken Link
- http://www.novell.com/linux/security/advisories/2005_07_sr.html vendor-advisoryx_refsource_SUSEBroken Link
- http://www.osvdb.org/13775 vdb-entryx_refsource_OSVDBBroken Link
- http://www.pgp.com/library/ctocorner/openpgp.html x_refsource_CONFIRMBroken Link
- http://www.securityfocus.com/bid/12529 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://eprint.iacr.org/2005/033 | x_refsource_MISCThird Party Advisory | |
| http://eprint.iacr.org/2005/033.pdf | x_refsource_MISCTechnical DescriptionThird Party Advisory | |
| http://securitytracker.com/id?1013166 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| http://www.gentoo.org/security/en/glsa/glsa-200503-29.xml | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| http://www.kb.cert.org/vuls/id/303094 | third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource | |
| http://www.mandriva.com/security/advisories?name=MDKSA-2005:057 | vendor-advisoryx_refsource_MANDRAKEBroken Link | |
| http://www.novell.com/linux/security/advisories/2005_07_sr.html | vendor-advisoryx_refsource_SUSEBroken Link | |
| http://www.osvdb.org/13775 | vdb-entryx_refsource_OSVDBBroken Link | |
| http://www.pgp.com/library/ctocorner/openpgp.html | x_refsource_CONFIRMBroken Link | |
| http://www.securityfocus.com/bid/12529 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Feb 11, 2005
Updated Aug 7, 2024
Reserved Feb 11, 2005
Link CVE-2005-0366
CISA Vulnrichment
Updated n/a