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Linux KernelOperating system · Linux

CVE-2022-1353

HIGH · 7.1 CVSS v3.1 Published 2022-04-29
Fix available
A fix is available. Upgrade to 5.17 or later.
See remediation →
73/100
Remediation priority · Elevated
Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel. This flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a leak of internal kernel information.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-200

The application discloses data — error detail, internal paths, tokens, or other users' records — to someone who shouldn't see it. On its own it can look minor, but it hands attackers the map they need for a larger attack. Remediation is about minimising what's returned and enforcing authorization on every piece of data.

General guidance for the information exposure class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Linux KernelOperating system
Affected:< 5.17= 5.17
Debian LinuxOperating system
Affected:= 9.0= 10.0= 11.0
Enterprise LinuxOperating system
Affected:= 8.0
H300s FirmwareOperating system
Affected:all versions
H500s FirmwareOperating system
Affected:all versions
H700s FirmwareOperating system
Affected:all versions
H410s FirmwareOperating system
Affected:all versions
H300e FirmwareOperating system
Affected:all versions

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 5.17 or later
Fixed in 5.17
Vendor patch bugzilla.redhat.com →
Recommended fix High confidence

Linux Kernel 5.18 or later; Debian 11 users should upgrade to kernel 5.18+ from bullseye-backports; RHEL 8 users should apply latest kernel via 'dnf update'

  1. 1. Identify the current kernel version using 'uname -r' or 'cat /proc/version'
  2. 2. For Debian systems: Run 'apt-get update && apt-get dist-upgrade' to upgrade to the latest kernel in the distribution repositories
  3. 3. For RHEL/Enterprise Linux 8.0: Run 'dnf update kernel' to install the latest fixed kernel package
  4. 4. For other systems: Obtain kernel 5.18 or later from kernel.org or your distribution's repositories
  5. 5. After kernel upgrade, reboot the system to load the fixed kernel: 'systemctl reboot' or 'reboot'
  6. 6. Verify the kernel version after reboot using 'uname -r' to confirm the system is running a fixed version (5.18 or later)
Caveat Kernel upgrades may require rebuild of third-party kernel modules (e.g., NVIDIA drivers, VirtualBox); ensure compatibility checks before reboot

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,250. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-1353 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data