CVE-2021-31440

HIGH

7.0

Description

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.11.15. 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 prior to executing them. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel. Was ZDI-CAN-13661.

Details CVE

Score CVSS v3.17.0

SeveriteHIGH

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

Vecteur d'attaqueLOCAL

ComplexiteHIGH

Privileges requisLOW

Interaction utilisateurNONE

Publie5/21/2021

Derniere modification11/21/2024

Sourcenvd

Observations honeypot0

Produits affectes

linux:linux_kernelnetapp:cloud_backupnetapp:h300enetapp:h300e_firmwarenetapp:h300snetapp:h300s_firmwarenetapp:h410snetapp:h410s_firmwarenetapp:h500enetapp:h500e_firmwarenetapp:h500snetapp:h500s_firmwarenetapp:h700enetapp:h700e_firmwarenetapp:h700snetapp:h700s_firmwarenetapp:solidfire_baseboard_management_controllernetapp:solidfire_baseboard_management_controller_firmware

Faiblesses (CWE)

CWE-682

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=10bf4e83167cc68595b85fd73bb91e8f2c086e36(zdi-disclosures@trendmicro.com)

https://security.netapp.com/advisory/ntap-20210706-0003/(zdi-disclosures@trendmicro.com)

https://www.zerodayinitiative.com/advisories/ZDI-21-503/(zdi-disclosures@trendmicro.com)

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=10bf4e83167cc68595b85fd73bb91e8f2c086e36(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20210706-0003/(af854a3a-2127-422b-91ae-364da2661108)

https://www.zerodayinitiative.com/advisories/ZDI-21-503/(af854a3a-2127-422b-91ae-364da2661108)

Correlations IOC

Aucune correlation enregistree

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