Kernel: dccp: conntrack out-of-bounds read in nf_conntrack_dccp_packet()

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Summary

CVECVE-2023-39197
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-01-23 03:15:11 UTC
Updated2026-11-07 14:16:54 UTC
DescriptionAn out-of-bounds read vulnerability was found in Netfilter Connection Tracking (conntrack) in the Linux kernel. This flaw allows a remote user to disclose sensitive information via the DCCP protocol.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

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

Problem Types: CWE-125 | CWE-125 Out-of-bounds Read

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1[email protected]Secondary4MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
3.1CNACVSS4MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N

CVSS v3.1 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
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 7 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 8 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 8 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 9 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 9 Not specified Not specified

References

ReferenceSourceLinkTags
cve-details af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
2218342 – (CVE-2023-39197, ZDI-CAN-21202) CVE-2023-39197 kernel: DCCP: conntrack out-of-bounds read in nf_conntrack_dccp_packet() af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2023-06-28T00:00:00.000ZReported to Red Hat.
CNA2023-11-08T00:00:00.000ZMade public.

Legacy QID Mappings

  • 200199 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6700-1)
  • 200202 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6701-1)
  • 200209 Ubuntu Security Notification for Linux kernel (GCP) Vulnerabilities (USN-6701-2)
  • 200217 Ubuntu Security Notification for Linux kernel (AWS) Vulnerabilities (USN-6700-2)
  • 200222 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6701-3)
  • 200244 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-6701-4)
  • 673563 EulerOS Security Update for kernel (EulerOS-SA-2024-1144)

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