openssl: DTLS plaintext recovery attack
Published Jan 6, 2012
4.3
MEDIUMCVSS 2.0
EPSS 16.05%
Description
The DTLS implementation in OpenSSL before 0.9.8s and 1.x before 1.0.0f performs a MAC check only if certain padding is valid, which makes it easier for remote attackers to recover plaintext via a padding oracle attack.
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.
Red Hat Enterprise Linux 5
openssl-0:0.9.8e-20.el5_7.1
Fixed · RHSA-2012:0060
Red Hat Enterprise Linux 6
openssl-0:1.0.0-20.el6_2.1
Fixed · RHSA-2012:0059
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
Not affected
Red Hat Enterprise Linux 4
openssl096b
Not affected
Red Hat Enterprise Linux 5
openssl097a
Not affected
Red Hat Enterprise Linux 6
openssl098e
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | openssl-0:0.9.8e-20.el5_7.1 | Fixed | RHSA-2012:0060 |
| Red Hat Enterprise Linux 6 | openssl-0:1.0.0-20.el6_2.1 | Fixed | RHSA-2012:0059 |
| 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 | Not affected | n/a |
| Red Hat Enterprise Linux 4 | openssl096b | Not affected | n/a |
| Red Hat Enterprise Linux 5 | openssl097a | Not affected | n/a |
| Red Hat Enterprise Linux 6 | openssl098e | Will not fix | 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 4 as they do not include support for DTLS protocol.
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:P/I:N/A:N
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 | 16.05% (0.16050) | 96.82th | v5 (v2026.06.15) |
| Jun 15, 2026 | 15.76% (0.15757) | 96.44th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.15% (0.01154) | 76.60th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.27% (0.03272) | 78.43th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.48% (0.01476) | 79.63th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.48% (0.00485) | 76.80th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.48% (0.00485) | 75.28th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.48% (0.00485) | 72.26th | 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 (29)
- http://aix.software.ibm.com/aix/efixes/security/openssl_advisory3.asc x_refsource_CONFIRM
- 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://lists.opensuse.org/opensuse-security-announce/2014-03/msg00001.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=132750648501816&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-2012-1306.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/48528 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/57260 third-party-advisoryx_refsource_SECUNIA
- 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.debian.org/security/2012/dsa-2390 vendor-advisoryx_refsource_DEBIAN
- http://www.isg.rhul.ac.uk/~kp/dtls.pdf x_refsource_MISC
- http://www.kb.cert.org/vuls/id/737740 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:006 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:007 vendor-advisoryx_refsource_MANDRIVA
- http://www.openssl.org/news/secadv_20120104.txt x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2011-4108 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=771770 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2011-4108
- https://security.paloaltonetworks.com/CVE-2011-4108 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2011-4108
Change history (0)
No recorded changes yet.