CVE-2021-3483

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Summary

CVECVE-2021-3483
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-05-17 12:15:07 UTC
Updated2026-08-05 22:17:04 UTC
DescriptionA flaw was found in the Nosy driver in the Linux kernel. This issue allows a device to be inserted twice into a doubly-linked list, leading to a use-after-free when one of these devices is removed. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Versions before kernel 5.12-rc6 are affected

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.003610000 probability, percentile 0.288210000 (date 2026-08-09)

Problem Types: CWE-416 | CWE-416 CWE-416

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary4.6AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:L/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 9.0 All All All
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel 5.12 rc1 All All
Operating System Linux Linux Kernel 5.12 rc2 All All
Operating System Linux Linux Kernel 5.12 rc3 All All
Operating System Linux Linux Kernel 5.12 rc4 All All
Operating System Linux Linux Kernel 5.12 rc5 All All
Application Netapp Cloud Backup - All All All
Hardware Netapp H300e - All All All
Operating System Netapp H300e Firmware - All All All
Hardware Netapp H300s - All All All
Operating System Netapp H300s Firmware - All All All
Hardware Netapp H410c - All All All
Operating System Netapp H410c Firmware - All All All
Hardware Netapp H410s - All All All
Operating System Netapp H410s Firmware - All All All
Hardware Netapp H500e - All All All
Operating System Netapp H500e Firmware - All All All
Hardware Netapp H500s - All All All
Operating System Netapp H500s Firmware - All All All
Hardware Netapp H700e - All All All
Operating System Netapp H700e Firmware - All All All
Hardware Netapp H700s - All All All
Operating System Netapp H700s Firmware - All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Kernel affected 4.4.265 semver Not specified
CNA Linux Kernel affected 4.5 4.9.265 semver Not specified
CNA Linux Kernel affected 4.10 4.14.229 semver Not specified
CNA Linux Kernel affected 4.15 4.19.185 semver Not specified
CNA Linux Kernel affected 4.20 5.4.110 semver Not specified
CNA Linux Kernel affected 5.5 5.10.28 semver Not specified
CNA Linux Kernel affected 5.11 5.11.12 semver Not specified

References

ReferenceSourceLinkTags
1948045 – (CVE-2021-3483) CVE-2021-3483 kernel: use-after-free in nosy driver in nosy_ioctl() in drivers/firewire/nosy.c when a device is added twice af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
[SECURITY] [DLA 2689-1] linux security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
oss-security - CVE-2021-3483: Linux kernel: a use-after-free bug in nosy driver af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Patch, Third Party Advisory
[SECURITY] [DLA 2690-1] linux-4.19 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
CVE-2021-3483 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 174916 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1210-1)
  • 174917 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1211-1)
  • 174919 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1238-1)
  • 174925 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1248-1)
  • 174938 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1301-1)
  • 174996 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:14724-1)
  • 178679 Debian Security Update for linux-4.19 (DLA 2690-1)
  • 178680 Debian Security Update for linux (DLA 2689-1)
  • 179529 Debian Security Update for linux (CVE-2021-3483)
  • 198365 Ubuntu Security Notification for Linux kernel (OEM) vulnerabilities (USN-4948-1)
  • 198398 Ubuntu Security Notification for Linux kernel vulnerabilities (USN-4979-1)
  • 198401 Ubuntu Security Notification for Linux kernel vulnerabilities (USN-4982-1)
  • 198403 Ubuntu Security Notification for Linux kernel vulnerabilities (USN-4984-1)
  • 352274 Amazon Linux Security Advisory for kernel: ALAS2-2021-1627
  • 670416 EulerOS Security Update for kernel (EulerOS-SA-2021-1983)
  • 670438 EulerOS Security Update for kernel (EulerOS-SA-2021-2062)
  • 670449 EulerOS Security Update for kernel (EulerOS-SA-2021-2051)
  • 670463 EulerOS Security Update for kernel (EulerOS-SA-2021-2221)
  • 670634 EulerOS Security Update for kernel (EulerOS-SA-2021-2392)
  • 671047 EulerOS Security Update for kernel (EulerOS-SA-2021-2588)
  • 750004 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1573-1)
  • 750006 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1596-1)
  • 750014 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1623-1)
  • 750015 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1624-1)
  • 750199 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:0758-1)
  • 750261 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:0579-1)
  • 750650 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1975-1)
  • 750652 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1977-1)
  • 750762 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1977-1)
  • 750766 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1975-1)
  • 900096 CBL-Mariner Linux Security Update for kernel 5.10.52.1
  • 900304 CBL-Mariner Linux Security Update for kernel 5.10.57.1
  • 900319 CBL-Mariner Linux Security Update for kernel 5.10.60.1
  • 901455 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (6568-1)
  • 903117 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (4234)
  • 905927 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (4234-1)

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