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cve[email protected]CVE-2021-33909
HistoryJul 20, 2021 - 7:15 p.m.

CVE-2021-33909

2021-07-2019:15:09
CWE-787
CWE-190
[email protected]
web.nvd.nist.gov
623
134
cve-2021-33909
linux kernel
integer overflow
out-of-bounds write
escalation to root
nvd

7.2 High

CVSS2

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

7.8 High

CVSS3

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

7.9 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

55.0%

JSON

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

Affected configurations

NVD
Node
linuxlinux_kernelRange3.12.43–3.13
OR
linuxlinux_kernelRange3.16–4.4.276
OR
linuxlinux_kernelRange4.5–4.9.276
OR
linuxlinux_kernelRange4.10–4.14.240
OR
linuxlinux_kernelRange4.15–4.19.198
OR
linuxlinux_kernelRange4.20–5.4.134
OR
linuxlinux_kernelRange5.5–5.10.52
OR
linuxlinux_kernelRange5.11–5.12.19
OR
linuxlinux_kernelRange5.13–5.13.4
Node
fedoraprojectfedoraMatch34
Node
debiandebian_linuxMatch9.0
OR
debiandebian_linuxMatch10.0
Node
netapphci_management_nodeMatch-
OR
netappsolidfireMatch-
Node
oraclecommunications_session_border_controllerMatch8.2
OR
oraclecommunications_session_border_controllerMatch8.3
OR
oraclecommunications_session_border_controllerMatch8.4
OR
oraclecommunications_session_border_controllerMatch9.0
Node
sonicwallsma1000_firmwareRange≤12.4.2-02044
AND
sonicwallsma1000Match-

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7.2 High

CVSS2

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

7.8 High

CVSS3

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

7.9 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

55.0%

JSON
Related for CVE-2021-33909
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