Buffer overflow in Linux Kernel
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (34.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.12 (Release Notes, Vendor Advisory)
- github.com/torvalds/linux/commit/cb222aed03d798fc074be55e59d9a112338ee784 (Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20200430-0004/ (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/06/msg00011.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/06/msg00013.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-20636?
- CVE-2019-20636 is a medium-severity vulnerability in Linux Kernel, classified under Out-of-bounds Write. CVSS score: 6.7/10. Published 2020-04-08.
- How severe is CVE-2019-20636?
- Medium severity. CVSS v3 base score is 6.7 out of 10.
- Is CVE-2019-20636 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.