MEDIUM
openssl: CMS and PKCS#7 Bleichenbacher attack
Published Mar 13, 2012
5.0
MEDIUMCVSS 2.0
EPSS 13.65%
Description
The implementation of Cryptographic Message Syntax (CMS) and PKCS #7 in OpenSSL before 0.9.8u and 1.x before 1.0.0h does not properly restrict certain oracle behavior, which makes it easier for context-dependent attackers to decrypt data via a Million Message Attack (MMA) adaptive chosen ciphertext attack.
Affected products
No data.
OR
- ≤ 0.9.8t
- 0.9.0b
- 0.9.1b
- 0.9.1c
- 0.9.2b
- 0.9.3
- 0.9.3a
- 0.9.4
- 0.9.5
- 0.9.5a
- 0.9.6
- 0.9.6a
- 0.9.6b
- 0.9.6c
- 0.9.6d
- 0.9.6e
- 0.9.6f
- 0.9.6g
- 0.9.6h
- 0.9.6i
- 0.9.6j
- 0.9.6k
- 0.9.6l
- 0.9.6m
- 0.9.7
- 0.9.7a
- 0.9.7b
- 0.9.7c
- 0.9.7d
- 0.9.7e
- 0.9.7f
- 0.9.7g
- 0.9.7h
- 0.9.7i
- 0.9.7j
- 0.9.7k
- 0.9.7l
- 0.9.7m
- 0.9.8
- 0.9.8a
- 0.9.8b
- 0.9.8c
- 0.9.8d
- 0.9.8e
- 0.9.8f
- 0.9.8g
- 0.9.8h
- 0.9.8i
- 0.9.8j
- 0.9.8k
- 0.9.8l
- 0.9.8m
- 0.9.8n
- 0.9.8o
- 0.9.8p
- 0.9.8q
- 0.9.8r
- 0.9.8s
- 1.0.0
- 1.0.0a
- 1.0.0b
- 1.0.0c
- 1.0.0d
- 1.0.0e
- 1.0.0f
- 1.0.0g
No data.
Red Hat Enterprise Linux 5
openssl-0:0.9.8e-22.el5_8.1
Fixed · RHSA-2012:0426
Red Hat Enterprise Linux 6
openssl-0:1.0.0-20.el6_2.3
Fixed · RHSA-2012:0426
Red Hat JBoss Enterprise Application Platform 5.1
n/a
Fixed · RHSA-2012:1307
Red Hat JBoss Enterprise Application Platform 6.0
n/a
Fixed · RHSA-2012:1308
Red Hat JBoss Web Server 1.0
n/a
Fixed · RHSA-2012:1306
Red Hat Enterprise Linux 4
openssl
Will not fix
Red Hat Enterprise Linux 4
openssl096b
Will not fix
Red Hat Enterprise Linux 5
openssl097a
Will not fix
Red Hat Enterprise Linux 6
openssl098e
Will not fix
Red Hat JBoss Enterprise Web Server 1
openssl
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | openssl-0:0.9.8e-22.el5_8.1 | Fixed | RHSA-2012:0426 |
| Red Hat Enterprise Linux 6 | openssl-0:1.0.0-20.el6_2.3 | Fixed | RHSA-2012:0426 |
| Red Hat JBoss Enterprise Application Platform 5.1 | n/a | Fixed | RHSA-2012:1307 |
| Red Hat JBoss Enterprise Application Platform 6.0 | n/a | Fixed | RHSA-2012:1308 |
| Red Hat JBoss Web Server 1.0 | n/a | Fixed | RHSA-2012:1306 |
| Red Hat Enterprise Linux 4 | openssl | Will not fix | n/a |
| Red Hat Enterprise Linux 4 | openssl096b | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | openssl097a | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | openssl098e | Will not fix | n/a |
| Red Hat JBoss Enterprise Web Server 1 | openssl | Affected | n/a |
No package ranges for this CVE.
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.
13.65% 0.13652
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.13652
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 (38 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 13.65% (0.13652) | 96.37th | v5 (v2026.06.15) |
| Jun 15, 2026 | 13.08% (0.13075) | 95.84th | v5 (v2026.06.15) |
| Mar 4, 2026 | 2.77% (0.02774) | 85.80th | v4 (v2025.03.14) |
| Mar 1, 2026 | 1.09% (0.01089) | 77.73th | v4 (v2025.03.14) |
| Feb 4, 2026 | 2.77% (0.02774) | 85.69th | v4 (v2025.03.14) |
| Feb 1, 2026 | 1.09% (0.01089) | 77.61th | v4 (v2025.03.14) |
| Jan 4, 2026 | 2.77% (0.02774) | 85.62th | v4 (v2025.03.14) |
| Jan 1, 2026 | 1.09% (0.01089) | 77.55th | v4 (v2025.03.14) |
| Dec 4, 2025 | 2.55% (0.02549) | 85.00th | v4 (v2025.03.14) |
| Dec 1, 2025 | 1.06% (0.01056) | 77.05th | v4 (v2025.03.14) |
| Nov 4, 2025 | 2.55% (0.02551) | 84.95th | v4 (v2025.03.14) |
| Nov 1, 2025 | 1.06% (0.01056) | 77.02th | v4 (v2025.03.14) |
| Oct 4, 2025 | 2.55% (0.02551) | 84.94th | v4 (v2025.03.14) |
| Oct 1, 2025 | 1.06% (0.01056) | 76.94th | v4 (v2025.03.14) |
| Sep 4, 2025 | 3.13% (0.03127) | 86.35th | v4 (v2025.03.14) |
| Sep 1, 2025 | 1.30% (0.01301) | 79.02th | v4 (v2025.03.14) |
| Aug 4, 2025 | 3.13% (0.03127) | 86.35th | v4 (v2025.03.14) |
| Aug 1, 2025 | 1.30% (0.01301) | 78.99th | v4 (v2025.03.14) |
| Jul 4, 2025 | 2.85% (0.02848) | 85.65th | v4 (v2025.03.14) |
| Jul 1, 2025 | 1.18% (0.01182) | 77.88th | v4 (v2025.03.14) |
| Jun 4, 2025 | 2.85% (0.02848) | 85.56th | v4 (v2025.03.14) |
| Jun 1, 2025 | 1.18% (0.01182) | 77.80th | v4 (v2025.03.14) |
| May 4, 2025 | 3.35% (0.03348) | 86.63th | v4 (v2025.03.14) |
| May 1, 2025 | 1.40% (0.01395) | 79.42th | v4 (v2025.03.14) |
| Apr 17, 2025 | 3.35% (0.03348) | 86.61th | v4 (v2025.03.14) |
| Apr 16, 2025 | 1.40% (0.01395) | 79.31th | v4 (v2025.03.14) |
| Mar 30, 2025 | 3.35% (0.03348) | 86.17th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.91% (0.05905) | 83.91th | v4 (v2025.03.14) |
| Mar 24, 2025 | 3.35% (0.03348) | 86.16th | v4 (v2025.03.14) |
| Mar 22, 2025 | 4.69% (0.04687) | 88.43th | v4 (v2025.03.14) |
| Mar 21, 2025 | 1.87% (0.01872) | 81.58th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.69% (0.04687) | 88.62th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.87% (0.00867) | 83.07th | v3 (v2023.03.01) |
| Feb 15, 2024 | 0.87% (0.00867) | 81.85th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.87% (0.00867) | 79.84th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.72% (0.04720) | 89.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.72% (0.04720) | 88.14th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.72% (0.04720) | 74.52th | v2 (v2022.01.01) |
Weaknesses (1)
References (27)
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077086.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077221.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077666.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.html vendor-advisoryx_refsource_FEDORA
- http://marc.info/?l=bugtraq&m=133728068926468&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=133951357207000&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=134039053214295&w=2 vendor-advisoryx_refsource_HP
- http://rhn.redhat.com/errata/RHSA-2012-0426.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2012-0488.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2012-0531.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2012-1306.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2012-1307.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2012-1308.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/48580 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/48895 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/48916 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/57353 third-party-advisoryx_refsource_SECUNIA
- http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564 x_refsource_CONFIRM
- http://www.debian.org/security/2012/dsa-2454 vendor-advisoryx_refsource_DEBIAN
- http://www.kb.cert.org/vuls/id/737740 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.openssl.org/news/secadv_20120312.txt x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2012-0884 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=802725 Issue Tracking
- https://downloads.avaya.com/css/P8/documents/100162507 x_refsource_CONFIRM
- https://hermes.opensuse.org/messages/14330767 vendor-advisoryx_refsource_SUSE
- https://nvd.nist.gov/vuln/detail/CVE-2012-0884
- https://www.cve.org/CVERecord?id=CVE-2012-0884
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Mar 13, 2012
Updated Aug 6, 2024
Reserved Jan 19, 2012
Link CVE-2012-0884
CISA Vulnrichment
Updated n/a