CVE-2012-0884: openssl Cryptographic Issues
Vulnerability summary
CVE-2012-0884 is a medium (CVSS 5.0) Cryptographic Issues vulnerability in openssl. EPSS estimates a 13.18% chance of exploitation in the next 30 days, higher than 96.3% of scored vulnerabilities.
Not severe (CVSS 5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5 · Related 3Timeline
- 13-03-2012PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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 metrics
1 score · 1 source · 1 versionEPSS trend
Probability
13.18%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
Decrease -0.48 pp
From 13.65% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- openssl< 1.0.0h-1
Openssl1 product
- opensslEOL≤ 0.9.8t | 0.9.0b | 0.9.1b | 0.9.1c | 0.9.2b | 0.9.3 | 0.9.3a | 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 | 0.9.6i | 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 | 0.9.8r | 0.9.8s | 1.0.0 | 1.0.0a | 1.0.0b | 1.0.0c | 1.0.0d | 1.0.0e | 1.0.0f | 1.0.0g
Ubuntu1 product
- openssl098< 0.9.8o-7ubuntu3.2.14.04.1
3 vendors · 3 products
References
27 links- lists.fedoraproject.org/pipermail/package-announce/2012-April/077666.htmlVendor AdvisoryX Refsource FEDORA
- www-01.ibm.com/support/docview.wss?uid=ssg1S1004564X Refsource CONFIRM
- lists.fedoraproject.org/pipermail/package-announce/2012-November/092905.htmlVendor AdvisoryX Refsource FEDORA
- downloads.avaya.com/css/P8/documents/100162507X Refsource CONFIRM
Show all 27 references
- lists.fedoraproject.org/pipermail/package-announce/2012-April/077086.htmlVendor AdvisoryX Refsource FEDORA
- lists.fedoraproject.org/pipermail/package-announce/2012-April/077221.htmlVendor AdvisoryX Refsource FEDORA