CVE-2011-4108

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 16.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-01-06 · updated 2026-06-16
Weakness: CWE-310

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

OpenSSL: through 0.9.8r; through 1.0.0e; 0.9.1c, 0.9.2b, 0.9.4, 0.9.5, 0.9.5a, 0.9.6 (+56)

References

http://aix.software.ibm.com/aix/efixes/security/openssl_advisory3.asc
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.html
http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00017.html
http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00018.html
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00001.html
http://marc.info/?l=bugtraq&m=132750648501816&w=2
http://marc.info/?l=bugtraq&m=133951357207000&w=2
http://marc.info/?l=bugtraq&m=134039053214295&w=2
http://rhn.redhat.com/errata/RHSA-2012-1306.html
http://rhn.redhat.com/errata/RHSA-2012-1307.html

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