Buffer overflow in Linux Kernel
CVE-2020-14386
A flaw was found in the Linux kernel before 5.9-rc4. Memory corruption can be exploited to gain root privileges from unprivileged processes. The highest threat from this vulnerability is to data confidentiality and integrity.
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: 0.013 (69.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Linux Kernel — versions 5.9.0
- Linux Kernel — versions before 5.9-rc4
- Debian Linux — versions 9.0
- Fedoraproject Fedora — versions 33
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- seclists.org/oss-sec/2020/q3/146 (Patch, Mailing List, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2020/09/msg00025.html (mailing-list, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html (vendor-advisory, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/159565/Kernel-Live-Patch-Security-Notice-LSN-0072… (VDB Entry, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/10/msg00032.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/10/msg00034.html (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2021/09/17/2 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-14386?
- CVE-2020-14386 is a medium-severity vulnerability in Linux Kernel, classified under CWE-250. CVSS score: 6.7/10. Published 2020-09-16.
- How severe is CVE-2020-14386?
- Medium severity. CVSS v3 base score is 6.7 out of 10.
- Is CVE-2020-14386 known to be exploited?
- 48 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.