CVE-2012-2333
Description
From CVE.org
Integer underflow in OpenSSL before 0.9.8x, 1.0.0 before 1.0.0j, and 1.0.1 before 1.0.1c, when TLS 1.1, TLS 1.2, or DTLS is used with CBC encryption, allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via a crafted TLS packet that is not properly handled during a certain explicit IV calculation.
Statement
This issue did not affect the versions of openssl as shipped with Red Hat Enterprise Linux 3 and 4. The openssl versions in Red Hat Enterprise Linux 5 and 6 were partially affected, as they support DTLS, but they do not support TLS 1.1 and TLS 1.2. This issue was addressed in Red Hat Enterprise Linux 5 and 6 via RHSA-2012:0699.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v2 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5 | 6.8 | N/A |
| Attack Vector | Network | Network | N/A |
| Access Complexity | Low | Medium | N/A |
| Authentication | None | None | N/A |
| Confidentiality Impact | None | Partial | N/A |
| Integrity Impact | None | Partial | N/A |
| Availability Impact | Partial | Partial | N/A |
Vector
Red Hat: AV:N/AC:L/Au:N/C:N/I:N/A:P
NVD: AV:N/AC:M/Au:N/C:P/I:P/A:P
Acknowledgements
Red Hat would like to thank OpenSSL project for reporting this issue. Upstream acknowledges Codenomicon as the original reporter.
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