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ubuntucveUbuntu.comUB:CVE-2021-4287
HistoryDec 27, 2022 - 12:00 a.m.

CVE-2021-4287

2022-12-2700:00:00
ubuntu.com
ubuntu.com
11
vulnerability
refirm labs
symlink following
remote attack
file manipulation
upgrade
patch
vdb-216876
unix

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

50.0%

A vulnerability, which was classified as problematic, was found in ReFirm
Labs binwalk up to 2.3.2. Affected is an unknown function of the file
src/binwalk/modules/extractor.py of the component Archive Extraction
Handler. The manipulation leads to symlink following. It is possible to
launch the attack remotely. Upgrading to version 2.3.3 is able to address
this issue. The name of the patch is
fa0c0bd59b8588814756942fe4cb5452e76c1dcd. It is recommended to upgrade the
affected component. The identifier of this vulnerability is VDB-216876.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchbinwalk< anyUNKNOWN
ubuntu20.04noarchbinwalk< anyUNKNOWN

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

50.0%