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ubuntucveUbuntu.comUB:CVE-2020-25643
HistoryOct 06, 2020 - 12:00 a.m.

CVE-2020-25643

2020-10-0600:00:00
ubuntu.com
ubuntu.com
25

7.2 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

34.9%

A flaw was found in the HDLC_PPP module of the Linux kernel in versions
before 5.9-rc7. Memory corruption and a read overflow is caused by improper
input validation in the ppp_cp_parse_cr function which can cause the system
to crash or cause a denial of service. The highest threat from this
vulnerability is to data confidentiality and integrity as well as system
availability.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-126.129UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-56.62UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-197.229UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1088.93UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1030.31UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1082.86) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1118.132UNKNOWN
ubuntu18.04noarchlinux-aws-5.4< 5.4.0-1030.31~18.04.1UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1088.93~16.04.1UNKNOWN
ubuntu20.04noarchlinux-azure< 5.4.0-1032.33UNKNOWN
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7.2 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

34.9%