CVE-2020-9383Out-of-bounds Read in Linux

CWE-125Out-of-bounds Read17 documents9 sources
Severity
7.1HIGHNVD
OSV4.7OSV4.1
EPSS
0.1%
top 73.70%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedFeb 25
Latest updateMay 24

Description

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HExploitability: 1.8 | Impact: 5.2

Affected Packages8 packages

Debianlinux/linux_kernel< 5.5.13-1+3
Ubuntulinux/linux_kernel< 4.4.0-178.208+1
NVDlinux/linux_kernel3.165.5.6
debiandebian/linux< linux 5.5.13-1 (bookworm)

Also affects: Debian Linux 8.0, 9.0, Ubuntu Linux 14.04, 16.04, 18.04, 19.10

Patches

🔴Vulnerability Details

6
GHSA
GHSA-cg92-xv4w-rrj3: An issue was discovered in the Linux kernel through 52022-05-24
OSV
linux, linux-aws, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3, linux-raspi2, linux-raspi2-5.3 vulnerabilities2020-04-30
OSV
linux, linux-aws, linux-kvm, linux-lts-xenial, linux-raspi2, linux-snapdragon vulnerabilities2020-04-29
OSV
linux-gke-5.0, linux-oem-osp11 vulnerabilities2020-04-28
OSV
linux, linux-aws, linux-aws-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities2020-04-28

📋Vendor Advisories

7
Ubuntu
Linux kernel vulnerabilities2020-04-30
Ubuntu
Linux kernel vulnerabilities2020-04-29
Ubuntu
Linux kernel vulnerabilities2020-04-28
Ubuntu
Linux kernel vulnerabilities2020-04-28
Red Hat
kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c2020-02-21

💬Community

3
HackerOne
CVE-2020-9383 Floppy OOB read2021-08-22
Bugzilla
CVE-2020-9383 kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c [fedora-all]2020-03-05
Bugzilla
CVE-2020-9383 kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c2020-03-05
CVE-2020-9383 — Out-of-bounds Read in Debian Linux | cvebase