Vulnerability identifier: #VU65661

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-7860

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
grpc
Server applications / Frameworks for developing and running applications

Vendor: Google

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to a heap-based buffer overflow in parse_unix function in core/ext/client_channel/parse_address.c. A remote attacker can send a specially crafted file the affected software, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

grpc: 1.0.0 - 1.1.2

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External links
http://www.securityfocus.com/bid/97695
http://bugs.chromium.org/p/oss-fuzz/issues/detail?id=661
http://github.com/grpc/grpc/pull/9833

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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.