CVE-2015-8371

Publication date 21 September 2023

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

Composer before 2016-02-10 allows cache poisoning from other projects built on the same host. This results in attacker-controlled code entering a server-side build process. The issue occurs because of the way that dist packages are cached. The cache key is derived from the package name, the dist type, and certain other data from the package repository (which may simply be a commit hash, and thus can be found by an attacker). Versions through 1.0.0-alpha11 are affected, and 1.0.0 is unaffected.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
composer	18.04 LTS bionic	Not affected
	17.10 artful	Ignored
	17.04 zesty	Ignored
	16.10 yakkety	Ignored
	16.04 LTS xenial	Not affected
	15.10 wily	Ignored
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release

Notes

tyhicks

Fixed in 10.02.2016 upstream

Severity score breakdown

Parameter	Value
Base score	8.8 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H