openssl: OCSP stapling vulnerability
Published Feb 18, 2011
5.0
MEDIUMCVSS 2.0
EPSS 9.85%
Description
ssl/t1_lib.c in OpenSSL 0.9.8h through 0.9.8q and 1.0.0 through 1.0.0c allows remote attackers to cause a denial of service (crash), and possibly obtain sensitive information in applications that use OpenSSL, via a malformed ClientHello handshake message that triggers an out-of-bounds memory access, aka "OCSP stapling vulnerability."
Affected products
No data.
Configuration 1
- 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
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0a
- 1.0.0b
- 1.0.0c
No data.
Red Hat Enterprise Linux 6
openssl-0:1.0.0-10.el6
Fixed · RHSA-2011:0677
Red Hat Enterprise Linux 4
openssl
Not affected
Red Hat Enterprise Linux 5
openssl
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | openssl-0:1.0.0-10.el6 | Fixed | RHSA-2011:0677 |
| Red Hat Enterprise Linux 4 | openssl | Not affected | n/a |
| Red Hat Enterprise Linux 5 | openssl | 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. It was addressed in Red Hat Enterprise Linux 6 via RHSA-2011:0677.
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:L/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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 9.85% (0.09854) | 95.43th | v5 (v2026.06.15) |
| Jun 15, 2026 | 9.85% (0.09854) | 94.93th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.67% (0.01671) | 80.43th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.32% (0.03316) | 78.56th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.67% (0.01671) | 80.86th | v4 (v2025.03.14) |
| Dec 17, 2024 | 9.29% (0.09288) | 94.69th | v3 (v2023.03.01) |
| Mar 9, 2023 | 10.34% (0.10337) | 94.02th | v3 (v2023.03.01) |
| Mar 7, 2023 | 13.45% (0.13447) | 94.64th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.56% (0.07559) | 92.87th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.56% (0.07559) | 92.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.56% (0.07559) | 81.11th | v2 (v2022.01.01) |
References (36)
- http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2011-002.txt.asc vendor-advisoryx_refsource_NETBSD
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777 vendor-advisoryx_refsource_HP
- http://lists.apple.com/archives/security-announce/2011//Jun/msg00000.html vendor-advisoryx_refsource_APPLE
- http://lists.fedoraproject.org/pipermail/package-announce/2011-February/054007.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=130497251507577&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=131042179515633&w=2 vendor-advisoryx_refsource_HP
- http://osvdb.org/70847 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/43227 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/43286 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/43301 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/43339 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/44269 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/57353 third-party-advisoryx_refsource_SECUNIA
- http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.668823 vendor-advisoryx_refsource_SLACKWARE
- http://support.apple.com/kb/HT4723 x_refsource_CONFIRM
- http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564 x_refsource_CONFIRM
- http://www.debian.org/security/2011/dsa-2162 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:028 vendor-advisoryx_refsource_MANDRIVA
- http://www.openssl.org/news/secadv_20110208.txt x_refsource_CONFIRMPatchVendor Advisory
- http://www.redhat.com/support/errata/RHSA-2011-0677.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/46264 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1025050 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-1064-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2011/0361 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2011/0387 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2011/0389 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2011/0395 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2011/0399 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2011/0603 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2011-0014 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=676063 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2011-0014
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18985 vdb-entrysignaturex_refsource_OVAL
- https://support.f5.com/csp/article/K10534046 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2011-0014
Change history (0)
No recorded changes yet.