kernel: Information leak in Linux sound module in timer.c
Published May 23, 2016
5.5
MEDIUMCVSS 3.0
EPSS 0.83%
Description
The snd_timer_user_params function in sound/core/timer.c in the Linux kernel through 4.6 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory via crafted use of the ALSA timer interface.
Affected products
No data.
Configuration 1
- ≤ 4.6
Configuration 2
- 12.04
- 14.04
- 15.10
- 16.04
Configuration 3
- 11.0
- 12.0
- 12.0
- 11.0
- 12.0
- 12.0
- 12.0
- 12.0
- 12.0
- 11.0
- 11.0
- 12.0
- 12.0
- 12.0
- 12.0
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-514.el7
Fixed · RHSA-2016:2574
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-514.rt56.420.el7
Fixed · RHSA-2016:2584
Red Hat Enterprise Linux 5
kernel
Will not fix
Red Hat Enterprise Linux 6
kernel
Will not fix
Red Hat Enterprise MRG 2
realtime-kernel
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-514.el7 | Fixed | RHSA-2016:2574 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-514.rt56.420.el7 | Fixed | RHSA-2016:2584 |
| Red Hat Enterprise Linux 5 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | kernel | Will not fix | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5 and 6. 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/. This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and MRG-2. Future Linux kernel updates for the respective releases might address this issue.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
AV:L/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.83% (0.00835) | 56.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.84% (0.00842) | 52.96th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.35% (0.00354) | 55.56th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (33)
- http://comments.gmane.org/gmane.linux.kernel/2214250
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cec8f96e49d9be372fdb0c3836dcf31ec71e457e x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2016-2574.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2016-2584.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2016/dsa-3607 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2016/05/09/17 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/90347 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-3016-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3016-2 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3016-3 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3016-4 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3017-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3017-2 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3017-3 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3018-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3018-2 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3019-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3020-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-3021-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3021-2 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-4569 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1334643 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/cec8f96e49d9be372fdb0c3836dcf31ec71e457e x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-4569
- https://www.cve.org/CVERecord?id=CVE-2016-4569
Change history (0)
No recorded changes yet.