Vulnerability identifier: #VU16089

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-3479

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

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

Vendor: Ian F. Darwin

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 the cdf_check_stream_offset function in cdf.c in file before 5.19, as used in the Fileinfo component in PHP before 5.4.30 and 5.5.x before 5.5.14, relies on incorrect sector-size data. A remote attacker can cause the service to crash via a crafted stream offset in a CDF file.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

file: 5.00 - 5.18

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External links
http://github.com/file/file/commit/36fadd29849b8087af9f4586f89dbf74ea45be67

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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.