FKIE_CVE-2021-34866

Vulnerability from fkie_nvd - Published: 2022-01-25 16:15 - Updated: 2024-11-21 06:11
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.14-rc3. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of eBPF programs. The issue results from the lack of proper validation of user-supplied eBPF programs, which can result in a type confusion condition. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel. Was ZDI-CAN-14689.
References
zdi-disclosures@trendmicro.comhttps://security.netapp.com/advisory/ntap-20220217-0008/Third Party Advisory
zdi-disclosures@trendmicro.comhttps://www.zerodayinitiative.com/advisories/ZDI-21-1148/Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20220217-0008/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.zerodayinitiative.com/advisories/ZDI-21-1148/Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
netapp h410c_firmware -
netapp h410c -
netapp h300s_firmware -
netapp h300s -
netapp h500s_firmware -
netapp h500s -
netapp h700s_firmware -
netapp h700s -
netapp h300e_firmware -
netapp h300e -
netapp h500e_firmware -
netapp h500e -
netapp h700e_firmware -
netapp h700e -
netapp h410s_firmware -
netapp h410s -
To clipboard 

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      "value": "This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.14-rc3. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of eBPF programs. The issue results from the lack of proper validation of user-supplied eBPF programs, which can result in a type confusion condition. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel. Was ZDI-CAN-14689."
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      "lang": "es",
      "value": "Esta vulnerabilidad permite a atacantes locales escalar privilegios en las instalaciones afectadas de Linux Kernel versi\u00f3n 5.14-rc3. Un atacante debe obtener primero la capacidad de ejecutar c\u00f3digo con bajos privilegios en el sistema objetivo para poder explotar esta vulnerabilidad. El fallo espec\u00edfico se presenta en el manejo de los programas eBPF. El problema es debido a que no son comprobados apropiadamente los programas eBPF suministrados por el usuario, lo que puede resultar en una condici\u00f3n de confusi\u00f3n de tipo. Un atacante puede aprovechar esta vulnerabilidad para escalar privilegios y ejecutar c\u00f3digo arbitrario en el contexto del kernel. Fue ZDI-CAN-14689"
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  "lastModified": "2024-11-21T06:11:22.370",
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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.