It was found that the timer functionality in the Linux kernel ALSA subsystem is prone to a race condition between read and ioctl system call handlers, resulting in an uninitialized memory disclosure to user space. A local user could use this flaw to read information belonging to other users.
Find out more about CVE-2017-1000380 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5 and 6. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates of this product due to its life cycle. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 7 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise Linux 7 and Red Hat Enterprise MRG 2 may address this issue.
| CVSS3 Base Score | 4.7 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
| Attack Vector | Local |
| Attack Complexity | High |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity Impact | None |
| Availability Impact | None |
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat MRG Grid for RHEL 6 Server v.2 (kernel-rt) | RHSA-2017:3295 | 2017-11-30 |
| Red Hat Enterprise Linux for Real Time for NFV (v. 7) (kernel-rt) | RHSA-2017:3322 | 2017-11-30 |
| Red Hat Enterprise Linux 7 (kernel) | RHSA-2017:3315 | 2017-12-01 |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-alt | Will not fix |
| Red Hat Enterprise Linux 6 | kernel | Will not fix |
| Red Hat Enterprise Linux 5 | kernel | Will not fix |
Vulmon