Information disclosure in nodejs-current (Alpine package)

1) Information disclosure

EUVDB-ID: #VU33508

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-15897

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote authenticated user to gain access to sensitive information.

Node.js had a bug in versions 8.X and 9.X which caused buffers to not be initialized when the encoding for the fill value did not match the encoding specified. For example, 'Buffer.alloc(0x100, "This is not correctly encoded", "hex");' The buffer implementation was updated such that the buffer will be initialized to all zeros in these cases.

Mitigation

Install update from vendor's website.

Vulnerable software versions

nodejs-current (Alpine package): 9.2.0-r0

CPE2.3

• cpe:2.3:o:alpine:nodejs-current_alpine_package:9.2.0-r0:*:*:*:*:alpine_linux:*:

External links

http://git.alpinelinux.org/aports/commit/?id=d5846d84581dd768db790e681b6aa1b312a32f24
http://git.alpinelinux.org/aports/commit/?id=3845824f27293ae03fd0408b8a798233934738dd
http://git.alpinelinux.org/aports/commit/?id=33e07701fafe36a157f32d67a4f84670a31a7a55
http://git.alpinelinux.org/aports/commit/?id=9221447d2d1a796bb103477d012beece75ac680e

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.