Home/CVE/A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm scatterwalk functional
CVE

CVE-2023-6176

A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm scatterwalk functional

A 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.

MEDIUM · CVSS 4.7 EPSS 0.0001
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

2
linux kernelall versions
redhat enterprise linuxall versions
⚠

Public Exploits & PoCs

1
pocpacketstormsecurity.com · Kernel-Live-Patch-Security-Notice-LSN-0100-1.htmlpacketstormsecurity.com
▣

Scoring & Timeline

4.7
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Nov 2023 · 06:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

30
rhsaRHSA-2024:2394Low
rhsaRHSA-2024:3138Moderate
rhsaRHSA-2024:2950Moderate
usnLSN-0102-1
usnUSN-6652-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://access.redhat.com/security/cve/CVE-2023-6176Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2219359Issue Tracking
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cfaa80c91f6f99b9342b6557f0f0e1143e434066Mailing ListPatch
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