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CVE-2021-4217

Published: Aug 24, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-476
3.3LOW
NVD MITRE
EPSS Score
0.6%
Top 55.4%
CISA KEV
Not in KEV
Exploits
2 Known
Remediation
Patch Available
Self-Check
OpenVAS

Description

A flaw was found in unzip. The vulnerability occurs due to improper handling of Unicode strings, which can lead to a null pointer dereference. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:NI:NA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-476

Affected Products

ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
АО «ИВК»
commercial·RUaka ivk
Альт 8 СПOn-premOS
Operating Systems / linux-distro
Info-ZIP
oss-project·USaka wiz, unzip, info-zip unzip
UnZipLibrary
OSS Libraries / generic-library
unzip project
oss-projectaka pzip, zipinfo, unzip
unzipLibrary
Consumer Software / file-utility
fedoraproject
oss-project·USaka fedora project
fedoraOn-premOS
Operating Systems / linux-distro
and 2 more affected products View all →

Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://bugs.launchpad.net/ubuntu/+source/unzip/+bug/1957077
bugs.launchpad.net
https://github.com/advisories/GHSA-9xxw-h585-3vfj
github.com
https://nvd.nist.gov/vuln/detail/CVE-2021-4217
nvd.nist.gov
and 6 more references View all →

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