Memory corruption in zlib



| Updated: 2022-04-06
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-25032
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Zlib
Universal components / Libraries / Libraries used by multiple products

Vendor GNU

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU61671

Risk: Medium

CVSSv4.0: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-25032

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input when compressing data. A remote attacker can pass specially crafted input to the application, trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Zlib: 1.2.2.2 - 1.2.11

CPE2.3 External links

https://www.openwall.com/lists/oss-security/2022/03/24/1
https://github.com/madler/zlib/commit/5c44459c3b28a9bd3283aaceab7c615f8020c531
https://www.openwall.com/lists/oss-security/2022/03/25/2
https://www.openwall.com/lists/oss-security/2022/03/26/1


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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