#VU11084 Memory corruption in ZZIPlib - CVE-2018-7725

Vulnerability identifier: #VU11084

Vulnerability risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-7725

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
ZZIPlib
Universal components / Libraries / Libraries used by multiple products

Vendor: zziplib.sourceforge.net

Description
The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the zzip_disk_fread function due to boundary error. A local attacker can send a specially crafted input, trigger invalid memory address dereference condition and cause the service to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ZZIPlib: 0.13.68

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External links
https://github.com/gdraheim/zziplib/issues/39

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.