#VU39632 Out-of-bounds read in Debian Linux - CVE-2017-6304

Vulnerability identifier: #VU39632

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-6304

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Debian Linux
Operating systems & Components / Operating system

Vendor: Debian

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

An issue was discovered in ytnef before 1.9.1. This is related to a patch described as "7 of 9. Out of Bounds read."

Mitigation
Install update from vendor's website.

Vulnerable software versions

Debian Linux: 8.0 - 9.0

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External links
https://www.debian.org/security/2017/dsa-3846
https://www.openwall.com/lists/oss-security/2017/02/15/4
https://www.securityfocus.com/bid/96423
https://github.com/Yeraze/ytnef/pull/27
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ/
https://www.x41-dsec.de/lab/advisories/x41-2017-002-ytnef/

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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.