#VU11217 Stack-based buffer over-read in ClamAV - CVE-2017-11423

Vulnerability identifier: #VU11217

Vulnerability risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/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-2017-11423

CWE-ID: CWE-126

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ClamAV
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: ClamAV

Description

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

The weakness exists in the cabd_read_string function due to stack-based buffer over-read. A remote attacker can send a specially crafted CAB file, trick the victim into opening it, trigger memory corruption and cause the service to crash.

Mitigation
Update to version 0.99.3.

Vulnerable software versions

ClamAV: 0.99.2

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External links
https://github.com/hackerlib/hackerlib-vul/tree/master/clamav-vul

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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.