CVE-2020-9383
published 2020-02-25CVE-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…
PriorityP431high7.1CVSS 3.1
AVLACLPRLUINSUCHINAH
EPSS
0.73%
50.6th percentile
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.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | linux | < linux 5.5.13-1 (bookworm) | linux 5.5.13-1 (bookworm) |
| linux | linux_kernel | >= 0 < 5.5.13-1 | 5.5.13-1 |
| linux | linux_kernel | >= 0 < 5.5.13-1 | 5.5.13-1 |
| linux | linux_kernel | >= 0 < 5.5.13-1 | 5.5.13-1 |
| linux | linux_kernel | >= 0 < 5.5.13-1 | 5.5.13-1 |
| linux | linux_kernel | >= 0 < 4.4.0-178.208 | 4.4.0-178.208 |
| linux | linux_kernel | >= 0 < 4.15.0-99.100 | 4.15.0-99.100 |
| linux | linux_kernel | 3.16 – 5.5.6 | — |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cm1_kernel_5.4.91-11_on_cbl_mariner_1.0 | — | — |
| opensuse | leap | — | — |
CVSS provenance
nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
nvdv2.03.6LOWAV:L/AC:L/Au:N/C:P/I:N/A:P
osv7.1HIGH
vendor_debian7.1HIGH
vendor_msrc7.1HIGH
vendor_redhat7.1HIGH
vendor_ubuntu4.7MEDIUM
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GHSA
GHSA-cg92-xv4w-rrj3: An issue was discovered in the Linux kernel through 5
ghsa_unreviewed·2022-05-24
CVE-2020-9383 [LOW] CWE-125 GHSA-cg92-xv4w-rrj3: An issue was discovered in the Linux kernel through 5
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.
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 vulnerabilities
osv·2020-04-30·CVSS 4.7
CVE-2020-11884 [MEDIUM] 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 vulnerabilities
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 vulnerabilities
Al Viro discovered that the Linux kernel for s390x systems did not properly
perform page table upgrades for kernel sections that use secondary address
mode. A local attacker could use this to cause a denial of service (system
crash) or execute arbitrary code. (CVE-2020-11884)
It was discovered that the Intel Wi-Fi 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).
(CVE-2019-16234)
Tristan Madani discovered that the block I/O tracing implementation in the
Linux kernel contained a race co
OSV
linux, linux-aws, linux-kvm, linux-lts-xenial, linux-raspi2, linux-snapdragon vulnerabilities
osv·2020-04-29·CVSS 4.1
CVE-2019-16233 [MEDIUM] linux, linux-aws, linux-kvm, linux-lts-xenial, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-aws, linux-kvm, linux-lts-xenial, linux-raspi2, linux-snapdragon vulnerabilities
It was discovered that the QLogic Fibre Channel driver in the Linux kernel
did not properly check for error, leading to a NULL pointer dereference. A
local attacker could possibly use this to cause a denial of service (system
crash). (CVE-2019-16233)
It was discovered that the Intel Wi-Fi 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).
(CVE-2019-16234)
Tristan Madani discovered that the block I/O tracing implementation in the
Linux kernel contained a race condition. A local attacker could use this to
cause a denial of service (system crash) or possibly expose sensitive
informat
OSV
linux-gke-5.0, linux-oem-osp11 vulnerabilities
osv·2020-04-28·CVSS 4.7
CVE-2019-16234 [MEDIUM] linux-gke-5.0, linux-oem-osp11 vulnerabilities
linux-gke-5.0, linux-oem-osp11 vulnerabilities
It was discovered that the Intel Wi-Fi 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).
(CVE-2019-16234)
It was discovered that the Intel WiMAX 2400 driver in the Linux kernel did
not properly deallocate memory in certain situations. A local attacker
could use this to cause a denial of service (kernel memory exhaustion).
(CVE-2019-19051)
Tristan Madani discovered that the block I/O tracing implementation in the
Linux kernel contained a race condition. A local attacker could use this to
cause a denial of service (system crash) or possibly expose sensitive
information. (CVE-2019-19768)
It was discovered that the vhost net dri
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 vulnerabilities
osv·2020-04-28·CVSS 4.7
CVE-2020-11884 [MEDIUM] 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 vulnerabilities
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 vulnerabilities
Al Viro discovered that the Linux kernel for s390x systems did not properly
perform page table upgrades for kernel sections that use secondary address
mode. A local attacker could use this to cause a denial of service (system
crash) or execute arbitrary code. (CVE-2020-11884)
It was discovered that the Intel Wi-Fi 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).
(CVE-2019-16234)
Tristan Madani discovered that the block I/O tracing implementation in the
Linux kernel contained a race condition. A local attack
OSV
CVE-2020-9383: An issue was discovered in the Linux kernel 3
osv·2020-02-25·CVSS 7.1
CVE-2020-9383 [HIGH] CVE-2020-9383: An issue was discovered in the Linux kernel 3
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.
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-04-30·CVSS 4.7
CVE-2019-16234 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Al Viro discovered that the Linux kernel for s390x systems did not properly
perform page table upgrades for kernel sections that use secondary address
mode. A local attacker could use this to cause a denial of service (system
crash) or execute arbitrary code. (CVE-2020-11884)
It was discovered that the Intel Wi-Fi 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).
(CVE-2019-16234)
Tristan Madani discovered that the block I/O tracing implementation in the
Linux kernel contained a race condition. A local attacker could use this to
cause a denial of service (system crash) or
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-04-29·CVSS 4.1
CVE-2019-16233 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the QLogic Fibre Channel driver in the Linux kernel
did not properly check for error, leading to a NULL pointer dereference. A
local attacker could possibly use this to cause a denial of service (system
crash). (CVE-2019-16233)
It was discovered that the Intel Wi-Fi 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).
(CVE-2019-16234)
Tristan Madani discovered that the block I/O tracing implementation in the
Linux kernel contained a race condition. A local attacker could use this to
cause a denial of service (system crash) or possibly expose sensitive
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-04-28·CVSS 4.7
CVE-2019-16234 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Al Viro discovered that the Linux kernel for s390x systems did not properly
perform page table upgrades for kernel sections that use secondary address
mode. A local attacker could use this to cause a denial of service (system
crash) or execute arbitrary code. (CVE-2020-11884)
It was discovered that the Intel Wi-Fi 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).
(CVE-2019-16234)
Tristan Madani discovered that the block I/O tracing implementation in the
Linux kernel contained a race condition. A local attacker could use this to
cause a denial of service (system crash) or
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-04-28·CVSS 4.7
CVE-2019-16234 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the Intel Wi-Fi 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).
(CVE-2019-16234)
It was discovered that the Intel WiMAX 2400 driver in the Linux kernel did
not properly deallocate memory in certain situations. A local attacker
could use this to cause a denial of service (kernel memory exhaustion).
(CVE-2019-19051)
Tristan Madani discovered that the block I/O tracing implementation in the
Linux kernel contained a race condition. A local attacker could use this to
cause a denial of service (system crash) or possibly expose sensitive
information. (CV
Red Hat
kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c
vendor_redhat·2020-02-21·CVSS 7.1
CVE-2020-9383 [HIGH] CWE-125 kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c
kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c
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.
An out-of-bounds (OOB) memory access flaw was found in the floppy driver module in the Linux kernel. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.
Mitigation: Mitigation for this issue is to skip loading the affected floppy driver module onto the system till we have a fix available, this can be done by a blacklist mecha
Microsoft
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 as
vendor_msrc·2020-02-11·CVSS 7.1
CVE-2020-9383 [HIGH] CWE-125 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 as
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products i
Debian
CVE-2020-9383: linux - An issue was discovered in the Linux kernel 3.16 through 5.5.6. set_fdc in drive...
vendor_debian·2020·CVSS 7.1
CVE-2020-9383 [HIGH] CVE-2020-9383: linux - An issue was discovered in the Linux kernel 3.16 through 5.5.6. set_fdc in drive...
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.
Scope: local
bookworm: resolved (fixed in 5.5.13-1)
bullseye: resolved (fixed in 5.5.13-1)
forky: resolved (fixed in 5.5.13-1)
sid: resolved (fixed in 5.5.13-1)
trixie: resolved (fixed in 5.5.13-1)
No detection rules found.
No public exploits indexed.
HackerOne
CVE-2020-9383 Floppy OOB read
hackerone·2021-08-22·CVSS 7.1
CVE-2020-9383 [HIGH] CVE-2020-9383 Floppy OOB read
CVE-2020-9383 Floppy OOB read
A vulnerability was found in Linux Kernel up to 5.5.6 (Operating System) and classified as critical. Affected by this issue is the function `set_fdc` of the file `drivers/block/floppy.c`. The manipulation with an unknown input leads to a memory corruption vulnerability (Out-of-Bounds). Using CWE to declare the problem leads to CWE-125. Impacted is confidentiality, integrity, and availability.
The weakness was disclosed 02/25/2020 by Jordy Zomer (GitHub Repository). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2020-9383 since 02/24/2020. The attack needs to be approached locally.
References:
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html
https://github.com/torvalds/linux/commit/2e90ca68b
Bugzilla
CVE-2020-25709 openldap: assertion failure in Certificate List syntax validation
bugzilla·2020-11-19·CVSS 7.5
CVE-2020-25709 [HIGH] CVE-2020-25709 openldap: assertion failure in Certificate List syntax validation
CVE-2020-25709 openldap: assertion failure in Certificate List syntax validation
A malicious packet can force OpenLDAP to fail an assertion in certificateListValidate function in servers/slapd/schema_init.c.
Reference:
https://bugs.openldap.org/show_bug.cgi?id=9383
Upstream patch:
https://git.openldap.org/openldap/openldap/-/commit/67670f4544e28fb09eb7319c39f404e1d3229e65
Discussion:
External References:
https://git.openldap.org/openldap/openldap/-/commit/ab3915154e69920d480205b4bf5ccb2b391a0a1f#a2feb6ed0257c21c6672793ee2f94eaadc10c72c
---
Statement:
This flaw does not affect Red Hat Enterprise Linux 8 because the slapd server is not shipped in the Red Hat Enterprise Linux 8 repositories.
---
This bug is now closed. Further updates for individual products will be reflected on th
Bugzilla
CVE-2020-9383 kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c [fedora-all]
bugzilla·2020-03-05·CVSS 7.1
CVE-2020-9383 [HIGH] CVE-2020-9383 kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c [fedora-all]
CVE-2020-9383 kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple suppo
Bugzilla
CVE-2020-9383 kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c
bugzilla·2020-03-05·CVSS 7.1
CVE-2020-9383 [HIGH] CVE-2020-9383 kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c
CVE-2020-9383 kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c
An out of bounds (OOB) memory access flaw was found in set_fdc in drivers/block/floppy.c in floppy driver module . This could allow a local attacker to crash the system or leak kernel internal information.
Reference and upstream commit:
https://github.com/torvalds/linux/commit/2e90ca68b0d2f5548804f22f0dd61145516171e3
Discussion:
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1810687]
---
This was fixed for Fedora with the 5.5.7 stable kernel updates.
---
Mitigation:
Mitigation for this issue is to skip loading the affected floppy driver module onto the system till we have a fix available, this can be done by a blacklist mechanism, this will ensure the driver is not loaded at the
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.htmlhttps://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=2f9ac30a54dc0181ddac3705cdcf4775d863c530https://github.com/torvalds/linux/commit/2e90ca68b0d2f5548804f22f0dd61145516171e3https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlhttps://security.netapp.com/advisory/ntap-20200313-0003/https://usn.ubuntu.com/4342-1/https://usn.ubuntu.com/4344-1/https://usn.ubuntu.com/4345-1/https://usn.ubuntu.com/4346-1/https://www.debian.org/security/2020/dsa-4698http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.htmlhttps://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=2f9ac30a54dc0181ddac3705cdcf4775d863c530https://github.com/torvalds/linux/commit/2e90ca68b0d2f5548804f22f0dd61145516171e3https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlhttps://security.netapp.com/advisory/ntap-20200313-0003/https://usn.ubuntu.com/4342-1/https://usn.ubuntu.com/4344-1/https://usn.ubuntu.com/4345-1/https://usn.ubuntu.com/4346-1/https://www.debian.org/security/2020/dsa-4698
2020-02-25
Published