CVE-2014-1896
Description
From CVE.org
The (1) do_send and (2) do_recv functions in io.c in libvchan in Xen 4.2.x, 4.3.x, and 4.4-RC series allows local guests to cause a denial of service or possibly gain privileges via crafted xenstore ring indexes, which triggers a "read or write past the end of the ring."
Statement
Not vulnerable.
This issue does not affect the versions of the xen package as shipped with Red Hat Enterprise Linux 5 as it does not provide oxenstored.
This issue does not affect Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2.
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).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v2 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4.3 | 4.9 | N/A |
| Attack Vector | Adjacent Network | Adjacent Network | N/A |
| Access Complexity | High | Medium | N/A |
| Authentication | None | Single | N/A |
| Confidentiality Impact | Partial | Partial | N/A |
| Integrity Impact | Partial | Partial | N/A |
| Availability Impact | Partial | Partial | N/A |
Vector
Red Hat: AV:A/AC:H/Au:N/C:P/I:P/A:P
NVD: AV:A/AC:M/Au:S/C:P/I:P/A:P
Acknowledgements
Red Hat would like to thank Xen project for reporting this issue.
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
