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ubuntucveUbuntu.comUB:CVE-2020-29374
HistoryNov 28, 2020 - 12:00 a.m.

CVE-2020-29374

2020-11-2800:00:00
ubuntu.com
ubuntu.com
22

3.6 Low

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

3.3 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

23.2%

An issue was discovered in the Linux kernel before 5.7.3, related to
mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation,
when used for a copy-on-write page, does not properly consider the
semantics of read operations and therefore can grant unintended write
access, aka CID-17839856fd58.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-136.140UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-45.49UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-203.235UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1094.101UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1022.22UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1086.90UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1122.136UNKNOWN
ubuntu18.04noarchlinux-aws-5.4< 5.4.0-1022.22~18.04.1UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1094.101~16.04.1UNKNOWN
ubuntu20.04noarchlinux-azure< 5.4.0-1023.23UNKNOWN
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3.6 Low

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

3.3 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

23.2%