CVE-2019-13173

Publication date 2 July 2019

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

fstream before 1.0.12 is vulnerable to Arbitrary File Overwrite. Extracting tarballs containing a hardlink to a file that already exists in the system, and a file that matches the hardlink, will overwrite the system's file with the contents of the extracted file. The fstream.DirWriter() function is vulnerable.

From the Ubuntu Security Team

It was discovered that npm/fstream incorrectly handled certain crafted tarballs. An attacker could use this vulnerability to write aritrary files to the filesystem.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
node-fstream	22.04 LTS jammy	Fixed 1.0.12-1
	21.10 impish	Fixed 1.0.12-1
	21.04 hirsute	Fixed 1.0.12-1
	20.10 groovy	Fixed 1.0.12-1
	20.04 LTS focal	Fixed 1.0.12-1
	19.10 eoan	Fixed 1.0.12-1
	19.04 disco	Fixed 1.0.10-1ubuntu0.19.04.2
	18.10 cosmic	Ignored
	18.04 LTS bionic	Fixed 1.0.10-1ubuntu0.18.04.1
	16.04 LTS xenial	Fixed 0.1.24-1ubuntu0.16.04.1~esm1 Ubuntu Pro
	14.04 LTS trusty	Fixed 0.1.24-1ubuntu0.14.04.1~esm1 Ubuntu Pro

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Notes

ebarretto

According to a Github comment, the fix might not be enough.

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	High
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N