Vulnerability identifier: #VU41349

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-5256

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Node.js
Server applications / Web servers

Vendor: Node.js Foundation

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Node.js 0.8 before 0.8.28 and 0.10 before 0.10.30 does not consider the possibility of recursive processing that triggers V8 garbage collection in conjunction with a V8 interrupt, which allows remote attackers to cause a denial of service (memory corruption and application crash) via deep JSON objects whose parsing lets this interrupt mask an overflow of the program stack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Node.js: 0.8.0 - 0.8.27, 0.10.0 - 0.10.29

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External links
http://advisories.mageia.org/MGASA-2014-0516.html
http://blog.nodejs.org/2014/07/31/v8-memory-corruption-stack-overflow/
http://secunia.com/advisories/61260
http://www.mandriva.com/security/advisories?name=MDVSA-2015:142
http://www-01.ibm.com/support/docview.wss?uid=swg21684769
http://github.com/joyent/node/commit/530af9cb8e700e7596b3ec812bad123c9fa06356

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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.