CVE-2024-27431 — CVE & Security Advisory Radar

🎯 CVE-2024-27431 HIGH 7.8 🔥 EPSS 23% 🇪🇺 EUVD

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CVE-2024-27431 | In the Linux kernel, the following vulnerability has been resolved: cpumap: Zero-initialise xdp_rxq_info struct before running XDP program When running an XDP program that is attached to a cpumap entry, we don't initialise the xdp_rxq_info data structure being used in the xdp_buff that backs the XDP program invocation. Tobias noticed that this leads to random values being returned as the xdp_md->rx_queue_index value for XDP programs running in a cpumap. Th

In the Linux kernel, the following vulnerability has been resolved:

cpumap: Zero-initialise xdp_rxq_info struct before running XDP program

When running an XDP program that is attached to a cpumap entry, we don't
initialise the xdp_rxq_info data structure being used in the xdp_buff
that backs the XDP program invocation. Tobias noticed that this leads to
random values being returned as the xdp_md->rx_queue_index value for XDP
programs running in a cpumap.

This means we're basically returning the contents of the uninitialised
memory, which is bad. Fix this by zero-initialising the rxq data
structure before running the XDP program.

Klassifikation & Betroffenheit:

Linux Linux patch: 6.8Linux 9216477449f33cdbc9c9a99d49f500b7fbb81702 <f0363af9619c77730764f10360e36c6445c12f7bLinux 9216477449f33cdbc9c9a99d49f500b7fbb81702 <f562e4c4aab00986dde3093c4be919c3f2b85a4aLinux 9216477449f33cdbc9c9a99d49f500b7fbb81702 <3420b3ff1ff489c177ea1cb7bd9fbbc4e9a0be95Linux patch: 0Linux 9216477449f33cdbc9c9a99d49f500b7fbb81702 <5f4e51abfbe6eb444fa91906a5cd083044278297Linux patch: 6.6.22Linux 9216477449f33cdbc9c9a99d49f500b7fbb81702 <eaa7cb836659ced2d9f814ac32aa3ec193803ed6

Improper Control of Generation of Code ('Code Injection') 🎯 Medium

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

🛡️ Empfohlene Mitigation: Refactor your program so that you do not have to dynamically generate code.

Vollständige Definition bei MITRE ➔

⚔️ Typische Angriffsmuster (CAPEC):

CAPEC-35 · Leverage Executable Code in Non-Executab… (Very High) CAPEC-77 · Manipulating User-Controlled Variables (Very High) CAPEC-242 · Code Injection (High)

🎯 ATT&CK-Techniken (Kill-Chain-Verhalten):

T1027.006 · Obfuscated Files or Information: H… T1027.009 · Obfuscated Files or Information: E… T1564.009 · Hide Artifacts: Resource Forking

🧩 Ähnliche Schwachstellen (Hersteller/Klasse/Score-Band):

CVE-2026-74573 9.3 CVE-2026-74568 9.3 CVE-2026-74517 9.3 CVE-2026-74439 9.3 CVE-2026-74310 9.3

🩹 Patch verfügbar (OSV):

🩹 Kernel ≥ 5.10.213 🩹 Kernel ≥ 5.15.152 🩹 Kernel ≥ 6.1.82 🩹 Kernel ≥ 6.6.22 🩹 Kernel ≥ 6.7.10

📚 Referenzen & Quellen:

🇪🇺 Original-Eintrag (ENISA EUVD) 🇺🇸 NVD-Eintrag

Ausnutzungs-Zeitleiste:

Reserviert 2024

Veröffentlicht 05/2024

Heute 09.09.

CVSS-Vektor-Analyse: 7.8

AV · Angriffsvektor Lokal

AC · Komplexität Gering

PR · Privilegien Gering

UI · Interaktion Keine

S · Scope Unverändert

C · Vertraulichkeit Hoch

I · Integrität Hoch

A · Verfügbarkeit Hoch

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

Veröffentlicht:17.05.2024

Aktualisiert:04.08.2026 11:17

Assigner (CNA):Linux

EUVD-ID:EUVD-2024-24635

Quellen: 🇪🇺 EUVD-Datenbank (ENISA) + 🇺🇸 NVD-Anreicherung · 24-h-Cache

CWE-94: Code Injection ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Kernel-Paket aktualisieren (apt upgrade linux-image / yum update kernel) und System neu starten.

Tier	2026-08-29	2026-09-06
≥90 %	4	0
≥50 %	4	0
≥10 %	3	0
<10 %	304	300

7.8 HIGH

🇪🇺 EUVD

EPSS

23%

CVE-2024-27431 💻 Lokal 🔑 Geringe Nutzerrechte nötig

Linux

CVE-2024-27431 | In the Linux kernel, the following vulnerability has been resolved: cpumap: Zero-initialise xdp_rxq_info struct before running XDP program When running an XDP program that is attached to a cpumap entry, we don't initialise the xdp_rxq_info data structure being used in the xdp_buff that backs the XDP program invocation. Tobias noticed that this leads to random values being returned as the xdp_md->rx_queue_index value for XDP programs running in a cpumap. Th

CWE-94: Code Injection ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Kernel-Paket aktualisieren (apt upgrade linux-image / yum update kernel) und System neu starten.

17.05.2024

🛡️ Details ➔

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