Kernel: local dos vulnerability in scatterwalk_copychunks

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Summary

CVECVE-2023-6176
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-11-16 18:15:07 UTC
Updated2026-11-06 14:17:01 UTC
DescriptionA null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm scatterwalk functionality. This issue occurs when a user constructs a malicious packet with specific socket configuration, which could allow a local user to crash the system or escalate their privileges on the system.

Risk And Classification

Primary CVSS: v3.1 4.7 MEDIUM from [email protected]

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

EPSS: 0.002510000 probability, percentile 0.165770000 (date 2026-11-06)

Problem Types: CWE-476

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1[email protected]Secondary4.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1CNACVSS4.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel - All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux 9.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:4.18.0-553.rt7.342.el8_10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:4.18.0-553.el8_10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:5.14.0-427.13.1.el9_4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:5.14.0-427.13.1.el9_4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 9 Not specified Not specified

References

ReferenceSourceLinkTags
packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html af854a3a-2127-422b-91ae-364da2661108 packetstormsecurity.com
access.redhat.com/security/cve/CVE-2023-6176 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2024:3138 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
access.redhat.com/errata/RHSA-2024:2950 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
access.redhat.com/errata/RHSA-2024:2394 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
bugzilla.redhat.com/show_bug.cgi af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Mailing List, Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2023-07-03T00:00:00.000ZReported to Red Hat.
CNA2023-09-12T00:00:00.000ZMade public.

Legacy QID Mappings

  • 199997 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6548-1)
  • 199999 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6548-2)
  • 200006 Ubuntu Security Notification for Linux kernel (Oracle) Vulnerabilities (USN-6548-3)
  • 200037 Ubuntu Security Notification for Linux kernel (IoT) Vulnerabilities (USN-6548-5)
  • 200099 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6624-1)
  • 200100 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6626-1)
  • 200103 Ubuntu Security Notification for Linux kernel (Intel IoTG) Vulnerabilities (USN-6628-1)
  • 200111 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6626-2)
  • 200118 Ubuntu Security Notification for Linux kernel (Intel IoTG) Vulnerabilities (USN-6628-2)
  • 200120 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-6626-3)
  • 200132 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-6652-1)
  • 379614 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2024:0017)
  • 673657 EulerOS Security Update for kernel (EulerOS-SA-2024-1122)
  • 674024 EulerOS Security Update for kernel (EulerOS-SA-2024-1107)
  • 755396 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4783-1)
  • 755409 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4782-1)
  • 755415 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4811-1)
  • 755416 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4810-1)
  • 755437 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4732-1)
  • 755438 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4731-1)
  • 755440 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4734-1)
  • 755441 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:4730-1)
  • 755704 SUSE Enterprise Linux Security Update for the Linux Kernel RT (Live Patch 7 for SLE 15 SP5) (SUSE-SU-2024:0344-1)
  • 755706 SUSE Enterprise Linux Security Update for the Linux Kernel RT (Live Patch 3 for SLE 15 SP4) (SUSE-SU-2024:0331-1)
  • 755709 SUSE Enterprise Linux Security Update for the Linux Kernel RT (Live Patch 5 for SLE 15 SP5) (SUSE-SU-2024:0348-1)
  • 755711 SUSE Enterprise Linux Security Update for the Linux Kernel RT (Live Patch 15 for SLE 15 SP4) (SUSE-SU-2024:0351-1)
  • 755713 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 36 for SLE 15 SP3) (SUSE-SU-2024:0358-1)
  • 755714 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 3 for SLE 15 SP5) (SUSE-SU-2024:0352-1)
  • 755715 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 5 for SLE 15 SP5) (SUSE-SU-2024:0378-1)
  • 755718 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 6 for SLE 15 SP5) (SUSE-SU-2024:0395-1)
  • 755721 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 29 for SLE 15 SP3) (SUSE-SU-2024:0389-1)
  • 755724 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 7 for SLE 15 SP5) (SUSE-SU-2024:0409-1)
  • 755726 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 8 for SLE 15 SP4) (SUSE-SU-2024:0414-1)
  • 755727 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 35 for SLE 15 SP3) (SUSE-SU-2024:0411-1)
  • 755728 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 7 for SLE 15 SP4) (SUSE-SU-2024:0421-1)
  • 755731 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 20 for SLE 15 SP4) (SUSE-SU-2024:0428-1)

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