CVE-2014-0178
Description
A flaw was found in the way Samba created responses for certain authenticated client requests when a shadow-copy VFS module was enabled. An attacker able to send an authenticated request could use this flaw to disclose limited portions of memory per each request.
Statement
This issue does not affect the version of samba as shipped with Red Hat Enterprise Linux 5 and 6. This issue does not affect the version of samba3x as shipped with Red Hat Enterprise Linux 5. This issue affects the version of samba4 as shipped with Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this issue as having Low security impact, a future update may address this flaw.
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 | 1.4 | 3.5 | N/A |
| Attack Vector | Adjacent Network | Network | N/A |
| Access Complexity | High | Medium | N/A |
| Authentication | Single | Single | N/A |
| Confidentiality Impact | Partial | Partial | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | None | None | N/A |
Vector
Red Hat: AV:A/AC:H/Au:S/C:P/I:N/A:N
NVD: AV:N/AC:M/Au:S/C:P/I:N/A:N
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Memory; Read Application Data
When reusing a resource such as memory or a program variable, the original contents of that resource may not be cleared before it is sent to an untrusted party.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
The uninitialized resource may contain values that cause program flow to change in ways that the programmer did not intend.
Acknowledgements
Red Hat would like to thank the Samba project for reporting this issue. Upstream acknowledges Christof Schmitt as the original reporter.
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