Buffer overflow in Linux Kernel
CVE-2020-14390
A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size, an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
Vulnerability class: Buffer Overflow
EPSS: 0.003 (26.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H.
Affected products
- Linux Linux_kernel — versions 5.9.0
- Debian Debian_linux — versions 9.0
- N/a Kernel — versions Linux kernel versions before 5.9-rc6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_MISC)
- secalert@redhat.com (vendor-advisory, x_refsource_SUSE)
- secalert@redhat.com (vendor-advisory, x_refsource_SUSE)
- secalert@redhat.com (mailing-list, x_refsource_MLIST)
- secalert@redhat.com (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2020-14390?
- CVE-2020-14390 is a medium-severity vulnerability in Linux Kernel, classified under Out-of-bounds Write. CVSS score: 5.6/10. Published 2020-09-18.
- How severe is CVE-2020-14390?
- Medium severity. CVSS v3 base score is 5.6 out of 10.
- Is CVE-2020-14390 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.