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nvd[email protected]NVD:CVE-2020-9391
HistoryFeb 25, 2020 - 6:15 p.m.

CVE-2020-9391

2020-02-2518:15:11
CWE-787
[email protected]
web.nvd.nist.gov

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.8 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

27.6%

JSON

An issue was discovered in the Linux kernel 5.4 and 5.5 through 5.5.6 on the AArch64 architecture. It ignores the top byte in the address passed to the brk system call, potentially moving the memory break downwards when the application expects it to move upwards, aka CID-dcde237319e6. This has been observed to cause heap corruption with the GNU C Library malloc implementation.

Affected configurations

NVD
Node
linuxlinux_kernelRange5.5–5.5.6
OR
linuxlinux_kernelMatch5.4
Node
fedoraprojectfedoraMatch31
Node
netappactive_iq_unified_managerMatch-vmware_vsphere
OR
netappcloud_backupMatch-
OR
netappdata_availability_servicesMatch-
OR
netapphci_management_nodeMatch-
OR
netappsolidfireMatch-
OR
netappsteelstore_cloud_integrated_storageMatch-
Node
netapph410c_firmwareMatch-
AND
netapph410cMatch-

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2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.8 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

27.6%

JSON
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