6.2

CVE-2016-2549: linux linux_kernel Improper Input Validation

CVSS: 6.2v3.0MediumModified
AliasesUBUNTU-CVE-2016-2549DEBIAN-CVE-2016-2549
Published 27-04-2016Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2016-2549 is a medium (CVSS 6.2) Improper Input Validation vulnerability in linux linux_kernel. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 40.1% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.2/10
010
Medium · v3.0 (NVD)
EPSS score
0.48%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 9 · Related 8
DSA-3503-1SUSE-SU-2016:0911-1SUSE-SU-2016:1102-1SUSE-SU-2016:1203-1SUSE-SU-2016:2074-1USN-2929-1

Timeline

  1. 27-04-2016
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

sound/core/hrtimer.c in the Linux kernel before 4.4.1 does not prevent recursive callback access, which allows local users to cause a denial of service (deadlock) via a crafted ioctl call.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.48%

Chance of exploitation in the next 30 days

Percentile

40%

Versus all other CVEs

30-day change

0.00 pp

From 0.48% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.48%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected 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

3 vendors · 23 products

References

32 links
Show all 32 references