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ubuntucveUbuntu.comUB:CVE-2020-24332
HistoryAug 13, 2020 - 12:00 a.m.

CVE-2020-24332

2020-08-1300:00:00
ubuntu.com
ubuntu.com
12

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

4.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

22.7%

An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is
started with root privileges, the creation of the system.data file is prone
to symlink attacks. The tss user can be used to create or corrupt existing
files, which could possibly lead to a DoS attack.

Bugs

Notes

Author Note
mdeslaur the Debian/Ubuntu package starts tcsd as the tss user, not as root, so this issue doesn’t affect default configurations
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchtrousers<Β anyUNKNOWN
ubuntu20.04noarchtrousers<Β anyUNKNOWN
ubuntu16.04noarchtrousers<Β anyUNKNOWN

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

4.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

22.7%