CVE-2024-50168

Local service interruption via unreleased oversized frames

Published Nov 7, 2024 · Updated May 11, 2026

Memory leak in affected Linux kernel releases from 2.6.12 allows local users to exhaust memory through oversized Sun3 82586 frames. The sun3_82586_send_packet function returns NETDEV_TX_OK when a frame exceeds XMIT_BUFF_SIZE but fails to release the consumed socket buffer. Reachability requires a Sun3 kernel with the on-board Intel 82586 driver enabled; repeated oversized transmissions consume kernel memory and can interrupt service.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in affected Linux kernel releases from 2.6.12 allows local users to exhaust memory through oversized Sun3 82586 frames. The sun3_82586_send_packet function returns NETDEV_TX_OK when a frame exceeds XMIT_BUFF_SIZE but fails to release the consumed socket buffer. Reachability requires a Sun3 kernel with the on-board Intel 82586 driver enabled; repeated oversized transmissions consume kernel memory and can interrupt service.

The record

CVE
CVE-2024-50168
Published
Nov 7, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 7, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <137010d26dc5cd47cd62fef77cbe952d31951b7a
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1a17a4ac2d57102497fac53b53c666dba6a0c20d
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2cb3f56e827abb22c4168ad0c1bbbf401bb2f3b8
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6dc937a3086e344f965ca5c459f8f3eb6b68d890
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <84f2bac74000dbb7a177d9b98a17031ec8d07ec5
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8d5b20fbc548650019afa96822b6a33ea4ec8aa5
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9c6ce55e6f0bd1541f112833006b4052614c7d94
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <db755e55349045375c5c7036e8650afb3ff419d8
  9. Affected versionversion=2.6.12

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <137010d26dc5cd47cd62fef77cbe952d31951b7a; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1a17a4ac2d57102497fac53b53c666dba6a0c20d; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2cb3f56e827abb22c4168ad0c1bbbf401bb2f3b8; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6dc937a3086e344f965ca5c459f8f3eb6b68d890; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <84f2bac74000dbb7a177d9b98a17031ec8d07ec5; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8d5b20fbc548650019afa96822b6a33ea4ec8aa5; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9c6ce55e6f0bd1541f112833006b4052614c7d94; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <db755e55349045375c5c7036e8650afb3ff419d8; version=2.6.12

Published CVSS scores

5.5CISA ADP VulnrichmentCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499.001OS Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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