#VU11302 Out-of-bounds read in ClamAV - CVE-2018-0202

Vulnerability identifier: #VU11302

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-0202

CWE-ID: CWE-125

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 due to improper input validation checking mechanisms when handling Portable Document Format files. A remote attacker can send a specially .pdf file, trigger out-of-bounds read and cause the service to crash.

Mitigation
Update to version 0.99.4.

Vulnerable software versions

ClamAV: 0.97.0 - 0.97.6, 0.98.0 - 0.98.7, 0.99.0 - 0.99.3

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External links
https://bugzilla.clamav.net/show_bug.cgi?id=11973

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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.