Improper input validation in nodejs (Alpine package)

1) Improper input validation

EUVDB-ID: #VU13376

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-7161

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to a cleanup bug where objects are used in native code after they are no longer available when the affected software interacts with an HTTP/2 server. A remote attacker can send a specially crafted request that submits malicious input to the targeted node server that provides an HTTP/2 server and cause the node server to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

nodejs (Alpine package): 8.9.2-r0 - 8.11.2-r0

CPE2.3

• cpe:2.3:a:alpine:nodejs_alpine_package:8.9.2-r0:*:*:*:*:alpine_linux:*:3.6
• cpe:2.3:a:alpine:nodejs_alpine_package:8.9.3-r0:*:*:*:*:alpine_linux:*:3.6
• cpe:2.3:a:alpine:nodejs_alpine_package:8.9.3-r1:*:*:*:*:alpine_linux:*:3.7

External links

https://git.alpinelinux.org/aports/commit/?id=92947a81c0654add42b67742a3d44a6e6fa5720e
https://git.alpinelinux.org/aports/commit/?id=ac65e68608103c3c2f02485f153bf92beff3db46

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.