CVE-2020-9383

Published: 25 February 2020

An issue was discovered in the Linux kernel 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.

From the Ubuntu security team

Jordy Zomer discovered that the floppy driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or possibly expose sensitive information.

Priority

Low

CVSS 3 base score: 7.1

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(5.4.0-26.30)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-18.22)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-99.100)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.4.0-178.208)
Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(was needs-triage ESM criteria)
Ubuntu 12.04 ESM (Precise Pangolin) Ignored
(was needs-triage ESM criteria)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 2e90ca68b0d2f5548804f22f0dd61145516171e3
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(5.4.0-1009.9)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-1005.5)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1066.70)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.4.0-1106.117)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.4.0-1066.70)
Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-aws-5.0
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needed now end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-1017.18~18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.15.0-1066.70~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(5.4.0-1010.10)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-1006.6)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needed now end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.15.0-1082.92~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(was needs-triage ESM criteria)
Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-azure-4.15
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1082.92)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-1020.21~18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(5.4.0-1009.9)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-1005.5)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needed now end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.15.0-1061.65)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-gcp-4.15
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1071.81)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-1018.19~18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1058.61)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.0.0-1035.36)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-1018.19~18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-51.44~18.04.2)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.15.0-99.100~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus) Ignored
(was needs-triage now end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(5.4.0-1009.9)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-1004.4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1059.60)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.4.0-1070.77)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Ignored
(was needs-triage ESM criteria)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.4.0-178.208~14.04.1)
Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1080.90)
Ubuntu 16.04 LTS (Xenial Xerus) Ignored
(was needs-triage now end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-oem-5.6
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(5.6.0-1007.7)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.6.0-1007.7)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.0.0-1050.55)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(5.4.0-1009.9)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-1005.5)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1038.42)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.15.0-1038.42~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-oracle-5.0
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needed now end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-1016.18~18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-raspi
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(5.4.0-1008.8)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-1007.7)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Ignored
(was pending \[5.4.0-1006.6\] now end-of-life)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1061.65)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.4.0-1132.141)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-raspi2-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-1023.25~18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-riscv
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(5.4.0-24.28)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-24.28)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc4)
Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1077.84)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.4.0-1136.144)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist