CVE-2021-41864

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Summary

CVECVE-2021-41864
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-10-02 00:15:07 UTC
Updated2026-08-05 18:44:49 UTC
Descriptionprealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel before 5.14.12 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write.

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

Problem Types: CWE-190 | n/a

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 Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Debian -- Security Information -- DSA-5096-1 linux af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
[SECURITY] Fedora 35 Update: kernel-5.14.10-300.fc35 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Broken Link
[SECURITY] Fedora 33 Update: kernel-5.14.10-100.fc33 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Broken Link
bpf: Fix integer overflow in prealloc_elems_and_freelist() · torvalds/linux@30e29a9 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
kernel/git/bpf/bpf.git - BPF kernel tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Mailing List, Patch, Vendor Advisory
[SECURITY] Fedora 34 Update: kernel-5.14.10-200.fc34 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Broken Link
CVE-2021-41864 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.12 af854a3a-2127-422b-91ae-364da2661108 cdn.kernel.org Mailing List, Patch, Vendor Advisory
[SECURITY] [DLA 2941-1] linux-4.19 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
[SECURITY] [DLA 2843-1] linux security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
[SECURITY] Fedora 35 Update: kernel-5.14.10-300.fc35 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 33 Update: kernel-5.14.10-100.fc33 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 34 Update: kernel-5.14.10-200.fc34 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159579 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9621)
  • 159580 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9623)
  • 159825 Oracle Enterprise Linux Security Update for kernel (ELSA-2022-1988)
  • 178943 Debian Security Update for linux (DLA 2843-1)
  • 179117 Debian Security Update for linux (DSA 5096-1)
  • 179119 Debian Security Update for linux-4.19 (DLA 2941-1)
  • 179646 Debian Security Update for linux (CVE-2021-41864)
  • 198567 Ubuntu Security Notification for Linux kernel (OEM 5.14) Vulnerabilities (USN-5140-1)
  • 198569 Ubuntu Security Notification for Linux kernel (OEM 5.10) Vulnerabilities (USN-5139-1)
  • 198617 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5209-1)
  • 198618 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5210-1)
  • 198621 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5208-1)
  • 198627 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5218-1)
  • 240275 Red Hat Update for kernel-rt (RHSA-2022:1975)
  • 240298 Red Hat Update for kernel security (RHSA-2022:1988)
  • 281972 Fedora Security Update for kernel (FEDORA-2021-ffda3d6fa1)
  • 281973 Fedora Security Update for kernel (FEDORA-2021-9dd76a1ed0)
  • 352869 Amazon Linux Security Advisory for kernel: ALAS2-2021-1719
  • 353142 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-009
  • 353153 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2022-007
  • 353242 Amazon Linux Security Advisory for kernel : ALAC2012-2022-036
  • 353243 Amazon Linux Security Advisory for kmod-mlx5 : ALAC2012-2022-037
  • 353244 Amazon Linux Security Advisory for kmod-sfc : ALAC2012-2022-038
  • 353989 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-027
  • 354000 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-029
  • 354013 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-031
  • 356241 Amazon Linux Security Advisory for microvm-kernel : ALASMICROVM-KERNEL-4.14-2023-001
  • 610400 Google Pixel Android March 2022 Security Patch Missing
  • 610408 Google Android April 2022 Security Patch Missing for Huawei EMUI
  • 6140366 AWS Bottlerocket Security Update for kernel (GHSA-2pq4-6c8j-v9xr)
  • 671159 EulerOS Security Update for kernel (EulerOS-SA-2021-2805)
  • 671165 EulerOS Security Update for kernel (EulerOS-SA-2021-2912)
  • 671180 EulerOS Security Update for kernel (EulerOS-SA-2021-2919)
  • 671288 EulerOS Security Update for kernel (EulerOS-SA-2022-1227)
  • 671304 EulerOS Security Update for kernel (EulerOS-SA-2022-1208)
  • 751336 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1460-1)
  • 751342 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3641-1)
  • 751346 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3655-1)
  • 751349 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1477-1)
  • 751353 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3675-1)
  • 751381 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3748-1)
  • 751437 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3876-1)
  • 751441 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3876-1)
  • 751473 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3969-1)
  • 751476 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3972-1)
  • 900372 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (5947)
  • 901683 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (6597-1)
  • 906123 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (5947-1)
  • 940517 AlmaLinux Security Update for kernel (ALSA-2022:1988)

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