#VU38691 Buffer overflow in YARA - CVE-2017-11328

Vulnerability identifier: #VU38691

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-11328

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
YARA
Server applications / Server solutions for antivurus protection

Vendor: VirusTotal

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

Heap buffer overflow in the yr_object_array_set_item() function in object.c in YARA 3.x allows a denial-of-service attack by scanning a crafted .NET file.

Mitigation
Install update from vendor's website.

Vulnerable software versions

YARA: 3.0.0 - 3.6.3

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External links
https://github.com/VirusTotal/yara/commit/4a342f01e5439b9bb901aff1c6c23c536baeeb3f

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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.