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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.76% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 54.8% of scored records. A rank, not a probability.
- NVD base score
- 7.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2020-02-25 15:48Z6 YR AGO
- Last updated
- 2024-08-04 10:26Z2 YR AGO
- Reserved
- 2020-02-24
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-125Out-of-bounds ReadBase
- Data version
- 5.1
- Document digest
- 941052fa93e43371de2030d6712f849d7e833e2f92586b33a85c6fc780c80d38
05 Affected products
06 References
- github.comhttps://github.com/torvalds/linux/commit/2e90ca68b0d2f5548804f22f0dd61145516171e3
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20200313-0003/
- lists.opensuse.orgopenSUSE-SU-2020:0388http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html
- usn.ubuntu.comUSN-4344-1https://usn.ubuntu.com/4344-1/
- usn.ubuntu.comUSN-4345-1https://usn.ubuntu.com/4345-1/
- usn.ubuntu.comUSN-4342-1https://usn.ubuntu.com/4342-1/
- usn.ubuntu.comUSN-4346-1https://usn.ubuntu.com/4346-1/
- lists.debian.org[debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
- lists.debian.org[debian-lts-announce] 20200610 [SECURITY] [DLA 2242-1] linux-4.9 security updatehttps://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
- lists.debian.org[debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security updatehttps://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
- www.debian.orgDSA-4698https://www.debian.org/security/2020/dsa-4698
- git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=2f9ac30a54dc0181ddac3705cdcf4775d863c530
07 Fixed in
Arch Linux
- linux Fixed in 5.5.7.arch1-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- linux Fixed in 5.5.13-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 5.5.13-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 5.5.13-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux Fixed in 4.4.0-178.208
- linux-aws Fixed in 4.4.0-1106.117
- linux-aws-hwe Fixed in 4.15.0-1066.70~16.04.1
- linux-azure Fixed in 4.15.0-1082.92~16.04.1
- linux-gcp Fixed in 4.15.0-1061.65
- linux-hwe Fixed in 4.15.0-99.100~16.04.1
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.4.0-1070.77
- linux-oracle Fixed in 4.15.0-1038.42~16.04.1
- linux-raspi2 Fixed in 4.4.0-1132.141
- linux-snapdragon Fixed in 4.4.0-1136.144
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux Fixed in 4.15.0-99.100
- linux-aws Fixed in 4.15.0-1066.70
- linux-aws-5.0 No fix yet
- linux-aws-5.3 Fixed in 5.3.0-1017.18~18.04.1
- linux-azure No fix yet
- linux-azure-5.3 Fixed in 5.3.0-1020.21~18.04.1
- linux-azure-edge No fix yet
- linux-gcp No fix yet
- linux-gcp-5.3 Fixed in 5.3.0-1018.19~18.04.1
- linux-gcp-edge No fix yet
- linux-gke-4.15 Fixed in 4.15.0-1058.61
- linux-gke-5.0 Fixed in 5.0.0-1035.36
- linux-gke-5.3 Fixed in 5.3.0-1018.19~18.04.1
- linux-hwe Fixed in 5.3.0-51.44~18.04.2
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.15.0-1059.60
- linux-oem Fixed in 4.15.0-1080.90
- linux-oem-osp1 Fixed in 5.0.0-1050.55
- linux-oracle Fixed in 4.15.0-1038.42
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 Fixed in 5.3.0-1016.18~18.04.1
- linux-raspi2 Fixed in 4.15.0-1061.65
- linux-raspi2-5.3 Fixed in 5.3.0-1023.25~18.04.1
- linux-snapdragon Fixed in 4.15.0-1077.84
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux-azure-fde No fix yet
- linux-gke No fix yet
- linux-raspi2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux-intel-iot-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-raspi-realtime No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- linux No fix yet
- linux-aws Fixed in 4.4.0-1066.70Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1082.92~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-lts-xenial Fixed in 4.4.0-178.208~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- linux-azure-fde-5.15 Fixed in 5.15.0-1114.123~20.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 16.04 LTS
- linux-fips Fixed in 4.4.0-1033.38Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 18.04 LTS
- linux-aws-fips Fixed in 4.15.0-2018.18Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2006.7Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 4.15.0-1029.34Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 16.04 LTS
- linux-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 18.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.