4.4

CVE-2019-20806: linux linux_kernel NULL Pointer Dereference

Modified
AliasesUBUNTU-CVE-2019-20806DEBIAN-CVE-2019-20806
Published 27-05-2020Last modified 05-08-2024

Vulnerability summary

CVE-2019-20806 is a medium (CVSS 4.4) NULL Pointer Dereference vulnerability in linux linux_kernel. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 32.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.4, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.4/10
010
Medium · v3.1 (NVD)
EPSS score
0.38%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 13 · Related 11
DLA-2242-1DSA-4698-1OPENSUSE-SU-2020:0801-1SUSE-SU-2020:1587-1SUSE-SU-2020:1599-1SUSE-SU-2020:1602-1

Timeline

  1. 27-05-2020
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in the Linux kernel before 5.2. There is a NULL pointer dereference in tw5864_handle_frame() in drivers/media/pci/tw5864/tw5864-video.c, which may cause denial of service, aka CID-2e7682ebfc75.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.38%

Chance of exploitation in the next 30 days

Percentile

33%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.38% 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

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

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

Ubuntu28 products
  • linux< 4.15.0-91.92
  • linux-aws< 4.15.0-1063.67
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
  • linux-aws-hwe< 4.15.0-1063.67~16.04.1
Debian1 product
  • linux< 5.2.6-1
Linux1 product

3 vendors · 30 products

References

11 links
Show all 11 references