Out-of-bounds Read in Linux Kernel
CVE-2020-9383
An issue was discovered in the Linux kernel 3.16 through 5.5.6. set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it, aka CID-2e90ca68b0d2.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.008 (53.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.008 · change: +0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/torvalds/linux/commit/2e90ca68b0d2f5548804f22f0dd61145516171e3 (Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20200313-0003/ (Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html (vendor-advisory, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4344-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4345-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4342-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4346-1/ (vendor-advisory, 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/msg00012.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-2020-9383?
- CVE-2020-9383 is a high-severity vulnerability in Linux Kernel, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2020-02-25.
- How severe is CVE-2020-9383?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2020-9383 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.