CVE-2024-23849

Local system crash via RDS trace index

Published Jan 23, 2024 · Updated Nov 4, 2025

An out-of-bounds read in the Linux kernel RDS implementation through 6.7.1 allows local users to crash the system via a socket option. rds_recv_track_latency accepts a receive-trace position equal to RDS_MSG_RX_DGRAM_TRACE_MAX, and rds_cmsg_recv adds one before indexing a four-element latency array. Low-privileged local access and the RDS protocol are required; the demonstrated consequence is an availability-only kernel crash.

CVSS severity5.5
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds read in the Linux kernel RDS implementation through 6.7.1 allows local users to crash the system via a socket option. rds_recv_track_latency accepts a receive-trace position equal to RDS_MSG_RX_DGRAM_TRACE_MAX, and rds_cmsg_recv adds one before indexing a four-element latency array. Low-privileged local access and the RDS protocol are required; the demonstrated consequence is an availability-only kernel crash.

The record

CVE
CVE-2024-23849
Published
Jan 23, 2024
Updated
Nov 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-193, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 23, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-193Off-by-one Error
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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