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nvd[email protected]NVD:CVE-2021-29154
HistoryApr 08, 2021 - 9:15 p.m.

CVE-2021-29154

2021-04-0821:15:13
CWE-77
[email protected]
web.nvd.nist.gov
7
bpf jit compilers
linux kernel
incorrect computation
branch displacements
arbitrary code

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0

Percentile

14.2%

JSON

BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c.

Affected configurations

Nvd
Node
linuxlinux_kernelRange3.0–4.4.266
OR
linuxlinux_kernelRange4.5–4.9.266
OR
linuxlinux_kernelRange4.10–4.14.230
OR
linuxlinux_kernelRange4.15–4.19.186
OR
linuxlinux_kernelRange4.20–5.4.111
OR
linuxlinux_kernelRange5.5–5.10.29
OR
linuxlinux_kernelRange5.11–5.11.13
Node
fedoraprojectfedoraMatch33
Node
debiandebian_linuxMatch9.0
Node
netappcloud_backupMatch-
OR
netapphci_management_nodeMatch-
OR
netappsolidfireMatch-
Node
netapph300sMatch-
AND
netapph300s_firmwareMatch-
Node
netapph500sMatch-
AND
netapph500s_firmwareMatch-
Node
netapph700sMatch-
AND
netapph700s_firmwareMatch-
Node
netapph300eMatch-
AND
netapph300e_firmwareMatch-
Node
netapph500eMatch-
AND
netapph500e_firmwareMatch-
Node
netapph700eMatch-
AND
netapph700e_firmwareMatch-
Node
netapph410sMatch-
AND
netapph410s_firmwareMatch-

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CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0

Percentile

14.2%

JSON
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