CVE-2012-0870
Description
From CVE.org
Heap-based buffer overflow in process.c in smbd in Samba 3.0, as used in the file-sharing service on the BlackBerry PlayBook tablet before 2.0.0.7971 and other products, allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a Batched (aka AndX) request that triggers infinite recursion.
Statement
This issue did not affect samba3x packages as shipped with Red Hat Enterprise Linux 5 and samba packages as shipped with Red Hat Enterprise Linux 6, as it only affected Samba versions prior to 3.4.0. This issue was addressed in samba packages in Red Hat Enterprise Linux 4 and 5 via RHSA-2012:0332.
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 | 8.3 | 7.9 | N/A |
| Attack Vector | Adjacent Network | Adjacent Network | N/A |
| Access Complexity | Low | Medium | N/A |
| Authentication | None | None | N/A |
| Confidentiality Impact | Complete | Complete | N/A |
| Integrity Impact | Complete | Complete | N/A |
| Availability Impact | Complete | Complete | N/A |
Vector
Red Hat: AV:A/AC:L/Au:N/C:C/I:C/A:C
NVD: AV:A/AC:M/Au:N/C:C/I:C/A:C
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Amplification
An infinite loop will cause unexpected consumption of resources, such as CPU cycles or memory. The software's operation may slow down, or cause a long time to respond.
Acknowledgements
Red Hat would like to thank Samba team for reporting this issue. Upstream acknowledges Andy Davis (NGS Secure) as the original reporter.
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