Medium severity · published Apr 8, 2020
CVE-2019-20636
In the Linux kernel before 5.4.12, drivers/input/input.c has out-of-bounds writes via a crafted keycode table, as demonstrated by input_set_keycode, aka CID-cb222aed03d7
6.7
CVSS
0.4%
EPSS
No
On KEV
Description
In the Linux kernel before 5.4.12, drivers/input/input.c has out-of-bounds writes via a crafted keycode table, as demonstrated by input_set_keycode, aka CID-cb222aed03d7.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 3.16.83; 3.17 before 4.4.210; 4.5 before 4.9.210; 4.10 before 4.14.165; 4.15 before 4.19.96; 4.20 before 5.4.12 · source: NVD
CB
Cloud Backup · Netapp
All versions, or not specified · source: NVD
F8
Fas 8300 · Netapp
All versions, or not specified · source: NVD
F8
Fas 8700 · Netapp
All versions, or not specified · source: NVD
FA
Fas A400 · Netapp
All versions, or not specified · source: NVD
FB
Fas Baseboard Management Controller A220 · Netapp
All versions, or not specified · source: NVD
FB
Fas Baseboard Management Controller A320 · Netapp
All versions, or not specified · source: NVD
FB
Fas Baseboard Management Controller A800 · Netapp
All versions, or not specified · source: NVD
FB
Fas Baseboard Management Controller C190 · Netapp
All versions, or not specified · source: NVD
H3
H300s · Netapp
All versions, or not specified · source: NVD
H4
H410s · Netapp
All versions, or not specified · source: NVD
H5
H500s · Netapp
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-20636
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-20636
Release Notes
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.12
Patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cb222aed03d798fc074be55e59d9a112338ee784
Patch
https://github.com/torvalds/linux/commit/cb222aed03d798fc074be55e59d9a112338ee784
Mailing List
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
Mailing List
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
Third Party Advisory
https://security.netapp.com/advisory/ntap-20200430-0004/
More from Kernel
9.8
CVE-2025-39682
tls: fix handling of zero-length records on the rx_list
8.8
CVE-2026-53266
netfilter: bridge: make ebt_snat ARP rewrite writable
8.8
CVE-2013-6282
Linux Kernel Improper Input Validation Vulnerability
8.4
CVE-2022-0185
Linux Kernel Heap-Based Buffer Overflow Vulnerability
8.4
CVE-2013-2094
Linux Kernel Privilege Escalation Vulnerability
