7.8

CVE-2016-4794: canonical ubuntu_linux

Modified
AliasesUBUNTU-CVE-2016-4794DEBIAN-CVE-2016-4794
Published 23-05-2016Last modified 06-08-2024

Vulnerability summary

CVE-2016-4794 is a high (CVSS 7.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 43.7% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.51%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2reference

Advisory lineage

Upstream 0 · Downstream 10 · Related 5
MGASA-2016-0271MGASA-2016-0283MGASA-2016-0284RHSA-2016:2574RHSA-2016:2584USN-3053-1

Timeline

  1. 23-05-2016
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

Use-after-free vulnerability in mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap and bpf system calls.

CVSS metrics

5 scores · 3 sources · 3 versions

EPSS trend

Probability

0.51%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.51% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (openwall.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (lkml.org)

    Maturity: unknown

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu5 products
  • linux< 4.4.0-34.53
  • linux-lts-vivid< 3.19.0-66.74~14.04.1
  • linux-lts-xenial< 4.4.0-34.53~14.04.1
  • linux-raspi2< 4.4.0-1019.25
  • linux-snapdragon< 4.4.0-1022.25
Canonical1 product
Debian1 product
  • linux< 4.6.2-2
Linux1 product
  • linux_kernel≥ 3.18, < 3.18.37 | ≥ 3.19, < 4.1.28 | ≥ 4.2, < 4.4.16 | ≥ 4.5, < 4.6.5

4 vendors · 8 products

References

20 links
Show all 20 references