CVE-2012-0884
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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 13.7%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
- EPSS
- 13.65% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-310
- Affected
- openssl/openssl
- Source
- secalert@redhat.com
EPSS 13.7% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- 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/737740US Government Resource
- http://www.openssl.org/news/secadv_20120312.txtVendor 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.