CVE-2021-20268Microsoft CVSS 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Microsoft security update for CVE-2021-20268

Published
March 25, 2021
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2021-20268 →

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-20268. This page also shows what EchelonGraph holds for CVE-2021-20268, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products16

  • kernel-5.10.57.1-1.cm1.aarch64.rpm on CBL Mariner 1.0 ARM
  • kernel-5.10.57.1-1.cm1.x86_64.rpm on CBL Mariner 1.0 x64
  • kernel-debuginfo-5.10.57.1-1.cm1.aarch64.rpm on CBL Mariner 1.0 ARM
  • kernel-debuginfo-5.10.57.1-1.cm1.x86_64.rpm on CBL Mariner 1.0 x64
  • kernel-devel-5.10.57.1-1.cm1.aarch64.rpm on CBL Mariner 1.0 ARM
  • kernel-devel-5.10.57.1-1.cm1.x86_64.rpm on CBL Mariner 1.0 x64
  • kernel-docs-5.10.57.1-1.cm1.aarch64.rpm on CBL Mariner 1.0 ARM
  • kernel-docs-5.10.57.1-1.cm1.x86_64.rpm on CBL Mariner 1.0 x64
  • kernel-drivers-accessibility-5.10.57.1-1.cm1.aarch64.rpm on CBL Mariner 1.0 ARM
  • kernel-drivers-accessibility-5.10.57.1-1.cm1.x86_64.rpm on CBL Mariner 1.0 x64
  • kernel-drivers-sound-5.10.57.1-1.cm1.aarch64.rpm on CBL Mariner 1.0 ARM
  • kernel-drivers-sound-5.10.57.1-1.cm1.x86_64.rpm on CBL Mariner 1.0 x64
  • kernel-dtb-5.10.57.1-1.cm1.aarch64.rpm on CBL Mariner 1.0 ARM
  • kernel-oprofile-5.10.57.1-1.cm1.x86_64.rpm on CBL Mariner 1.0 x64
  • kernel-tools-5.10.57.1-1.cm1.aarch64.rpm on CBL Mariner 1.0 ARM
  • kernel-tools-5.10.57.1-1.cm1.x86_64.rpm on CBL Mariner 1.0 x64

✅ Updates Microsoft lists: 1 update

1 row: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB articleUpdateFixed build
—Security Update-

🧭 EchelonGraph on CVE-2021-20268

EchelonGraph score
7.8 HIGH
CISA KEV
Not listed
Fix status
A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in the way a user running the eBPF script calls dev_map_init_map or sock_map_alloc. This flaw allows a local user to crash the system or possibly escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Published by Red Hat, Inc., the CVE Numbering Authority that assigned CVE-2021-20268, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 References (2)