Denial of service in zziplib



| Updated: 2023-08-21
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-18442
CWE-ID CWE-835
Exploitation vector Network
Public exploit N/A
Vulnerable software
 ZZIPlib
Universal components / Libraries / Libraries used by multiple products

Vendor zziplib.sourceforge.net

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Infinite loop

EUVDB-ID: #VU79772

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-18442

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop within the unzzip_cat_file() function. A remote attacker can consume all available system resources and cause denial of service conditions.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ZZIPlib: 0.13.0 - 0.13.71

CPE2.3 External links

https://github.com/gdraheim/zziplib/issues/68
https://lists.debian.org/debian-lts-announce/2021/12/msg00021.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TCFYD46OY4VAGJ4UX7IFOH5SHD4UW4ZA/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VVANTEBDQGOIPC5KCEVAGA5KT4KKTGWB/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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