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Vulnerability record · CVE-2012-0884 · published 13 March 2012

CVE-2012-0884: Openssl vulnerability

OOpenssl · Openssl

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.

5.0 CVSS 2.0 Medium EPSS 14% · top 3.6% CWE-310 · CWE-310
5.0CVSS 2.0 base score
14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
46References
16 Jun 2026Last modified by NVD

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.

AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077086.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077221.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077666.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.html
http://marc.info/?l=bugtraq&m=133728068926468&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-2012-0426.html
http://rhn.redhat.com/errata/RHSA-2012-0488.html
http://rhn.redhat.com/errata/RHSA-2012-0531.html
http://rhn.redhat.com/errata/RHSA-2012-1306.html
http://rhn.redhat.com/errata/RHSA-2012-1307.html
http://rhn.redhat.com/errata/RHSA-2012-1308.html
http://secunia.com/advisories/48580
http://secunia.com/advisories/48895
http://secunia.com/advisories/48916
http://secunia.com/advisories/57353
http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564
http://www.debian.org/security/2012/dsa-2454
http://www.kb.cert.org/vuls/id/737740 US Government Resource
http://www.openssl.org/news/secadv_20120312.txt Vendor Advisory
https://downloads.avaya.com/css/P8/documents/100162507
https://hermes.opensuse.org/messages/14330767
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077086.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077221.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077666.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.html
http://marc.info/?l=bugtraq&m=133728068926468&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-2012-0426.html
http://rhn.redhat.com/errata/RHSA-2012-0488.html
http://rhn.redhat.com/errata/RHSA-2012-0531.html
http://rhn.redhat.com/errata/RHSA-2012-1306.html
http://rhn.redhat.com/errata/RHSA-2012-1307.html
http://rhn.redhat.com/errata/RHSA-2012-1308.html
http://secunia.com/advisories/48580
http://secunia.com/advisories/48895
http://secunia.com/advisories/48916
http://secunia.com/advisories/57353

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Source: NIST National Vulnerability Database (record CVE-2012-0884), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.