CVE-2016-4569: canonical ubuntu_linux
Vulnerability summary
CVE-2016-4569 is a medium (CVSS 5.5) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.83% chance of exploitation in the next 30 days, higher than 57.7% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 21 · Related 17Timeline
- 23-05-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.83%
Chance of exploitation in the next 30 days
Percentile
58%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.83% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu23 products
- linux< 3.13.0-91.138 | < 4.4.0-28.47
- linux-azureAll versions (No fix recorded)
- linux-azure-6.11All versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
- linux-azure-fde-5.15All versions (No fix recorded)
Novell8 products
- suse_linux_enterprise_debuginfo11.0:sp4
- suse_linux_enterprise_desktop12.0 | 12.0:sp1
- suse_linux_enterprise_live_patching12.0
- suse_linux_enterprise_module_for_public_cloud12.0
- suse_linux_enterprise_real_time_extension12.0:sp1
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 15.10 | 16.04
Debian1 product
- linux< 4.5.5-1
Linux1 product
- linux_kernel≤ 4.6
5 vendors · 34 products
References
47 links- lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- git.kernel.org/cgit/…X Refsource CONFIRM
Show all 47 references
- github.com/torvalds/linux/commit/cec8f96e49d9be372fdb0c3836dcf31ec71e457eX Refsource CONFIRMVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- git.kernel.org/cgit/…REPORT