CVE-2016-4580
Description
A vulnerability was found in the Linux kernel. There is an information leak in the x25 module (net/x25/x25_facilities.c). Stack object "dte_facilities" is allocated in x25_rx_call_request(), which is supposed to be initialized in x25_negotiate_facilities(). However, 5 fields (8 bytes in total) are not initialized. This object is then copied to userland via copy_to_user(), thus info leak occurs.
Statement
This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and MRG-2. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
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 | 2.1 | 5 | N/A |
| Attack Vector | Local | Network | N/A |
| Access Complexity | Low | Low | N/A |
| Authentication | None | None | N/A |
| Confidentiality Impact | Partial | Partial | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | None | None | N/A |
Vector
Red Hat: AV:L/AC:L/Au:N/C:P/I:N/A:N
NVD: AV:N/AC:L/Au:N/C:P/I:N/A:N
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