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CVE-2016-5237

Published: 23 January 2017

Valve Steam 3.42.16.13 uses weak permissions for the files in the Steam program directory, which allows local users to modify the files and possibly gain privileges as demonstrated by a Trojan horse Steam.exe file.

Notes

AuthorNote
tyhicks
the steam client in multiverse auto-updates itself
judging by the CVE description, this may be specific to Windows

Priority

Medium

Cvss 3 Severity Score

4.8

Score breakdown

Status

Package Release Status
steam
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was not-affected [steam client auto-updates])
upstream Needs triage

xenial Not vulnerable
(steam client auto-updates)
yakkety Not vulnerable
(steam client auto-updates)

Severity score breakdown

Parameter Value
Base score 4.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction Required
Scope Unchanged
Confidentiality Low
Integrity impact Low
Availability impact Low
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L