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alpinelinuxAlpine Linux Development TeamALPINE:CVE-2022-39347
HistoryNov 16, 2022 - 8:15 p.m.

CVE-2022-39347

2022-11-1620:15:10
Alpine Linux Development Team
security.alpinelinux.org
19
freerdp
path canonicalization
base path check
drive channel
malicious server
shared directory
upgrade

5.7 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.6 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

45.4%

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing path canonicalization and base path check for drive channel. A malicious server can trick a FreeRDP based client to read files outside the shared directory. This issue has been addressed in version 2.9.0 and all users are advised to upgrade. Users unable to upgrade should not use the /drive, /drives or +home-drive redirection switch.

5.7 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.6 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

45.4%