CVE-2020-28407

2023-11-0304:15:15

Debian Security Bug Tracker

security-tracker.debian.org

vulnerability

swtpm

local attacker

file overwrite

symlink attack

temporary file

unix

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%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Debian12allswtpm< 0.7.1-1.3swtpm_0.7.1-1.3_all.deb
Debian999allswtpm< 0.7.1-1.4swtpm_0.7.1-1.4_all.deb
Debian13allswtpm< 0.7.1-1.4swtpm_0.7.1-1.4_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	swtpm	< 0.7.1-1.3	swtpm_0.7.1-1.3_all.deb
Debian	999	all	swtpm	< 0.7.1-1.4	swtpm_0.7.1-1.4_all.deb
Debian	13	all	swtpm	< 0.7.1-1.4	swtpm_0.7.1-1.4_all.deb