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No exploitation reportedFix available

CVE-2022-21123

No exploitation reported by the sources we read.

  • Published2022-06-15
  • WeaknessCWE-459

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

Timeline

dates in UTC
  1. 2022-06-1520:15CVE publishedNVD

Versions per branch

NVD
Debian debian linux
BranchAffectedFixed in
9.0= 9.0no fix published
10.0= 10.0no fix published
11.0= 11.0no fix published
Fedoraproject fedora
BranchAffectedFixed in
35.x= 35no fix published
36.x= 36no fix published
Intel sgx psw
BranchAffectedFixed in
2.17< 2.17.100.32.17.100.3
2.16< 2.16.100.32.16.100.3

4 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As intel, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Intel(R) Processors
    Affected
    • = See referencesno fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2022-08-14

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • dtb-aarch64openSUSE:Leap 15.4all versions · fixed in 5.14.21-150400.24.11.1and 10 other packages
  • dtb-aarch64openSUSE:Leap 15.4all versions · fixed in 5.3.18-150300.59.71.1
  • dtb-aarch64openSUSE:Leap 15.3all versions · fixed in 5.3.18-150300.59.71.1and 2 other packages
  • intel-microcodeUbuntu:18.04:LTSall versions · fixed in 3.20220510.0ubuntu0.18.04.1
  • intel-microcodeTuxCare:Ubuntu:16.04all versions · fixed in 3.20220510.0ubuntu0.16.04.1+tuxcare.els1
  • intel-microcodeDebian:14all versions · fixed in 3.20220510.1
  • intel-microcodeDebian:13all versions · fixed in 3.20220510.1
  • intel-microcodeDebian:12all versions · fixed in 3.20220510.1

231 more package ranges on OSV.dev

Vendor advisories

  • CVE-2022-21123 Red Hat Product Security1,060 products fixed · 22 known affected

    hw: cpu: incomplete clean-up of multi-core shared buffers (aka SBDR)

    kernel as a component of Red Hat Enterprise Linux 6 · kernel-abi-whitelists as a component of Red Hat Enterprise Linux 6 · kernel-bootwrapper as a component of Red Hat Enterprise Linux 6 · +19 more

  • RHSA-2022:8973 Red Hat Product Security166 products fixed

    Red Hat Security Advisory: kernel security and bug fix update

  • RHSA-2022:8974 Red Hat Product Security30 products fixed

    Red Hat Security Advisory: kernel-rt security and bug fix update

  • RHSA-2022:8267 Red Hat Product Security166 products fixed

    Red Hat Security Advisory: kernel security, bug fix, and enhancement update

  • RHSA-2022:7933 Red Hat Product Security30 products fixed

    Red Hat Security Advisory: kernel-rt security and bug fix update

  • RHSA-2022:7279 Red Hat Product Security97 products fixed

    Red Hat Security Advisory: kernel security and bug fix update

8 more advisories

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2022:8973 · 166 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.
  2. Workaround from the vendor Red Hat Product Security RHSA-2022:8973 · 166 productsMitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation baser or stability.

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Published
2022-06-15
Last Modified
2026-10-14
NVD status
Modified
GitHub Advisory
GHSA-4jx7-c67v-r2v7

Frequently asked questions

What is CVE-2022-21123?

Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

Is CVE-2022-21123 actively exploited?

Active exploitation of CVE-2022-21123 has not been confirmed. Its EPSS score was 6.9% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-21123?

CVE-2022-21123 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

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Sources for this record