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nvd[email protected]NVD:CVE-2022-34918
HistoryJul 04, 2022 - 9:15 p.m.

CVE-2022-34918

2022-07-0421:15:07
CWE-843
web.nvd.nist.gov
2
linux kernel
privilege escalation
nft_set_elem_init
buffer overflow
cve-2022-34918

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

0.006

Percentile

79.2%

An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data in net/netfilter/nf_tables_api.c.

Affected configurations

NVD
Node
linuxlinux_kernelRange4.14.14.316
OR
linuxlinux_kernelRange4.154.19.284
OR
linuxlinux_kernelRange4.205.4.244
OR
linuxlinux_kernelRange5.55.10.130
OR
linuxlinux_kernelRange5.115.15.54
OR
linuxlinux_kernelRange5.165.18.11
Node
debiandebian_linuxMatch11.0
Node
canonicalubuntu_linuxMatch14.04lts
OR
canonicalubuntu_linuxMatch16.04esm
OR
canonicalubuntu_linuxMatch18.04lts
OR
canonicalubuntu_linuxMatch20.04lts
OR
canonicalubuntu_linuxMatch22.04lts
Node
netapph300sMatch-
AND
netapph300s_firmwareMatch-
Node
netapph500sMatch-
AND
netapph500s_firmwareMatch-
Node
netapph700sMatch-
AND
netapph700s_firmwareMatch-
Node
netapph410sMatch-
AND
netapph410s_firmwareMatch-
Node
netapph410cMatch-
AND
netapph410c_firmwareMatch-

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

0.006

Percentile

79.2%