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ubuntucveUbuntu.comUB:CVE-2020-28016
HistoryMay 04, 2021 - 12:00 a.m.

CVE-2020-28016

2021-05-0400:00:00
ubuntu.com
ubuntu.com
15
exim 4
out-of-bounds write
vulnerability
parse_fix_phrase
unix

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

Percentile

12.6%

JSON

Exim 4 before 4.94.2 allows an off-by-two Out-of-bounds Write because “-F
‘’” is mishandled by parse_fix_phrase.

OSVersionArchitecturePackageVersionFilename
ubuntu20.10noarchexim4< 4.94-7ubuntu1.2UNKNOWN
ubuntu21.04noarchexim4< 4.94-15ubuntu1.2UNKNOWN

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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

Percentile

12.6%

JSON
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