CVE-2024-44999

Kernel-data disclosure and crash via unpulled headers

Published Sep 4, 2024 · Updated May 11, 2026

Use of uninitialized memory in the Linux GTP driver allows local users to disclose kernel data or crash the system via crafted packets. The gtp_dev_xmit() path reads IPv4 or IPv6 header fields before ensuring that the header is present in the socket buffer's linear data, causing GTP parsing to consume uninitialized bytes. Exploitation requires local access and permission to transmit through a configured GTP interface; the bounded consequences are kernel-data disclosure and a system crash.

CVSS severity7.1
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use of uninitialized memory in the Linux GTP driver allows local users to disclose kernel data or crash the system via crafted packets. The gtp_dev_xmit() path reads IPv4 or IPv6 header fields before ensuring that the header is present in the socket buffer's linear data, causing GTP parsing to consume uninitialized bytes. Exploitation requires local access and permission to transmit through a configured GTP interface; the bounded consequences are kernel-data disclosure and a system crash.

The record

CVE
CVE-2024-44999
Published
Sep 4, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-908, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 4, 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=459aa660eb1d8ce67080da1983bb81d716aa5a69 <137d565ab89ce3584503b443bc9e00d44f482593
  2. Affected versionversion=459aa660eb1d8ce67080da1983bb81d716aa5a69 <1f6b62392453d8f36685d19b761307a8c5617ac1
  3. Affected versionversion=459aa660eb1d8ce67080da1983bb81d716aa5a69 <34ba4f29f3d9eb52dee37512059efb2afd7e966f
  4. Affected versionversion=459aa660eb1d8ce67080da1983bb81d716aa5a69 <3939d787139e359b77aaf9485d1e145d6713d7b9
  5. Affected versionversion=459aa660eb1d8ce67080da1983bb81d716aa5a69 <3a3be7ff9224f424e485287b54be00d2c6bd9c40
  6. Affected versionversion=459aa660eb1d8ce67080da1983bb81d716aa5a69 <3d89d0c4a1c6d4d2a755e826351b0a101dbc86f3
  7. Affected versionversion=459aa660eb1d8ce67080da1983bb81d716aa5a69 <cbb9a969fc190e85195d1b0f08038e7f6199044e
  8. Affected versionversion=459aa660eb1d8ce67080da1983bb81d716aa5a69 <f5dda8db382c5751c4e572afc7c99df7da1f83ca
  9. Affected versionversion=4.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=459aa660eb1d8ce67080da1983bb81d716aa5a69 <137d565ab89ce3584503b443bc9e00d44f482593; version=459aa660eb1d8ce67080da1983bb81d716aa5a69 <1f6b62392453d8f36685d19b761307a8c5617ac1; version=459aa660eb1d8ce67080da1983bb81d716aa5a69 <34ba4f29f3d9eb52dee37512059efb2afd7e966f; version=459aa660eb1d8ce67080da1983bb81d716aa5a69 <3939d787139e359b77aaf9485d1e145d6713d7b9; version=459aa660eb1d8ce67080da1983bb81d716aa5a69 <3a3be7ff9224f424e485287b54be00d2c6bd9c40; version=459aa660eb1d8ce67080da1983bb81d716aa5a69 <3d89d0c4a1c6d4d2a755e826351b0a101dbc86f3; version=459aa660eb1d8ce67080da1983bb81d716aa5a69 <cbb9a969fc190e85195d1b0f08038e7f6199044e; version=459aa660eb1d8ce67080da1983bb81d716aa5a69 <f5dda8db382c5751c4e572afc7c99df7da1f83ca; version=4.7

Published CVSS scores

7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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-908Use of Uninitialized Resource
T1499.004Application or System Exploitation

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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