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ubuntucveUbuntu.comUB:CVE-2020-28407
HistoryNov 03, 2023 - 12:00 a.m.

CVE-2020-28407

2023-11-0300:00:00
ubuntu.com
ubuntu.com
3
swtpm
symlink attack
overwrite files
local attacker
temporary file

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.4 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

5.1%

In swtpm before 0.4.2 and 0.5.x before 0.5.1, a local attacker may be able
to overwrite arbitrary files via a symlink attack against a temporary file
such as TMP2-00.permall.

Bugs

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.4 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

5.1%