openssl: malformed RFC 3779 data can cause assertion failures
Published Jan 6, 2012
4.3
MEDIUMCVSS 2.0
EPSS 8.19%
Description
OpenSSL before 0.9.8s and 1.x before 1.0.0f, when RFC 3779 support is enabled, allows remote attackers to cause a denial of service (assertion failure) via an X.509 certificate containing certificate-extension data associated with (1) IP address blocks or (2) Autonomous System (AS) identifiers.
Affected products
No data.
Configuration 1
- ≤ 0.9.8r
- 0.9.1c
- 0.9.2b
- 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
- 0.9.6h
- 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
Configuration 2
- ≤ 1.0.0e
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0a
- 1.0.0b
- 1.0.0c
- 1.0.0d
No data.
RHEV 3.X Hypervisor and Agents for RHEL-6
rhev-hypervisor6-0:6.2-20120209.0.el6_2
Fixed · RHSA-2012:0109
Red Hat Enterprise Linux 6
openssl-0:1.0.0-20.el6_2.1
Fixed · RHSA-2012:0059
Red Hat Enterprise Linux 4
openssl
Not affected
Red Hat Enterprise Linux 4
openssl096b
Not affected
Red Hat Enterprise Linux 5
openssl
Not affected
Red Hat Enterprise Linux 5
openssl097a
Not affected
Red Hat Enterprise Linux 6
openssl098e
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| RHEV 3.X Hypervisor and Agents for RHEL-6 | rhev-hypervisor6-0:6.2-20120209.0.el6_2 | Fixed | RHSA-2012:0109 |
| Red Hat Enterprise Linux 6 | openssl-0:1.0.0-20.el6_2.1 | Fixed | RHSA-2012:0059 |
| Red Hat Enterprise Linux 4 | openssl | Not affected | n/a |
| Red Hat Enterprise Linux 4 | openssl096b | Not affected | n/a |
| Red Hat Enterprise Linux 5 | openssl | Not affected | n/a |
| Red Hat Enterprise Linux 5 | openssl097a | Not affected | n/a |
| Red Hat Enterprise Linux 6 | openssl098e | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of openssl as shipped with Red Hat Enterprise Linux 3, 4 and 5.
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.
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 8.19% (0.08193) | 94.71th | v5 (v2026.06.15) |
| Aug 23, 2026 | 8.19% (0.08193) | 94.53th | v5 (v2026.06.15) |
| Jun 15, 2026 | 9.33% (0.09331) | 94.73th | v5 (v2026.06.15) |
| Mar 4, 2026 | 2.79% (0.02787) | 85.83th | v4 (v2025.03.14) |
| Mar 1, 2026 | 0.54% (0.00536) | 67.21th | v4 (v2025.03.14) |
| Feb 4, 2026 | 2.79% (0.02787) | 85.72th | v4 (v2025.03.14) |
| Feb 1, 2026 | 0.54% (0.00536) | 67.07th | v4 (v2025.03.14) |
| Jan 9, 2026 | 2.79% (0.02787) | 85.66th | v4 (v2025.03.14) |
| Dec 11, 2025 | 1.30% (0.01301) | 79.19th | v4 (v2025.03.14) |
| Dec 7, 2025 | 3.60% (0.03604) | 87.34th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.30% (0.01301) | 77.90th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.65% (0.03651) | 79.53th | v4 (v2025.03.14) |
| Mar 24, 2025 | 0.44% (0.00443) | 60.54th | v4 (v2025.03.14) |
| Mar 19, 2025 | 1.54% (0.01536) | 79.30th | v4 (v2025.03.14) |
| Mar 18, 2025 | 0.52% (0.00524) | 65.03th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.54% (0.01536) | 80.05th | v4 (v2025.03.14) |
| Dec 12, 2024 | 10.64% (0.10637) | 95.31th | v3 (v2023.03.01) |
| Mar 7, 2023 | 10.64% (0.10637) | 94.09th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.58% (0.06584) | 91.39th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.58% (0.06584) | 90.55th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.58% (0.06584) | 78.46th | v2 (v2022.01.01) |
References (16)
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041 vendor-advisoryx_refsource_HP
- http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html vendor-advisoryx_refsource_APPLE
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00017.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00018.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=132750648501816&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=134039053214295&w=2 vendor-advisoryx_refsource_HP
- http://secunia.com/advisories/57353 third-party-advisoryx_refsource_SECUNIA
- http://support.apple.com/kb/HT5784 x_refsource_CONFIRM
- http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564 x_refsource_CONFIRM
- http://www.kb.cert.org/vuls/id/737740 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.openssl.org/news/secadv_20120104.txt x_refsource_CONFIRM
- https://access.redhat.com/security/cve/CVE-2011-4577 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=771778 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2011-4577
- https://www.cve.org/CVERecord?id=CVE-2011-4577
Change history (0)
No recorded changes yet.