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CVE-2020-18770

Published: Aug 22, 2023Updated: Jul 10, 2025 Sources: CVE List NVD BDUNVD-CWE-noinfo
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.3%
Top 76.8%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

An issue was discovered in function zzip_disk_entry_to_file_header in mmapped.c in zziplib 0.13.69, which will lead to a denial-of-service.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:NI:NA:H
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:HAvailability
High
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Weaknesses

NVD-CWE-noinfoCWE-400

Affected Products

zziplibgdraheim
Library
OSS Libraries / generic-library
n/an/a
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
МСВСфераООО «НЦПР»
On-prem
Operating Systems / linux-distro
zziplibGuido U. Draheim
Library
OSS Libraries / generic-library
gdraheimoss-projectOSS Librariesaka gdraheim zziplib
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
ооо «нцпр»commercialRUOperating Systems
guido u. draheimindividual-devOSS Librariesaka zziplib

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

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

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://github.com/gdraheim/zziplib/issues/69
github.com
https://errata.msvsphere-os.ru/definition/9/INFCSA-2024:2377?lang=ru
errata.msvsphere-os.ru
https://wiki.astralinux.ru/astra-linux-se18-bulletin-2026-0224SE18
wiki.astralinux.ru

Timeline

Published
Aug 22, 2023
Last Updated
Jul 10, 2025

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