CVE-2016-2548: linux linux_kernel Improper Input Validation
CVSS: 6.2v3.0MediumModified
AliasesUBUNTU-CVE-2016-2548DEBIAN-CVE-2016-2548
Published 27-04-2016Last modified 05-08-2024
Vulnerability summary
CVE-2016-2548 is a medium (CVSS 6.2) Improper Input Validation vulnerability in linux linux_kernel. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.7% of scored vulnerabilities.
CVSS score
6.2/10
010
Medium · v3.0 (NVD)EPSS score
0.45%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 9 · Related 8Timeline
- 27-04-2016PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
sound/core/timer.c in the Linux kernel before 4.4.1 retains certain linked lists after a close or stop action, which allows local users to cause a denial of service (system crash) via a crafted ioctl call, related to the (1) snd_timer_close and (2) _snd_timer_stop functions.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 6.2Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.2MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.2MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 4.9Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:N/I:N/A:CSourcesSingle source
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
38%
Versus all other CVEs
30-day change
0.00 pp
From 0.45% on 18-09-2026
18-09-202618-10-2026
EPSS score0.45%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu21 products
- linux< 3.13.0-83.127
- 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)
Debian1 product
- linux< 4.4.2-1
Linux1 product
- linux_kernel≤ 4.4
3 vendors · 23 products
References
33 links- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1X Refsource CONFIRM
- github.com/torvalds/linux/commit/b5a663aa426f4884c71cd8580adae73f33570f0dX Refsource CONFIRMPatchVendor Advisory
- bugzilla.redhat.com/show_bug.cgi?id=1311568X Refsource CONFIRM
