| Name | CVE-2020-15530 |
| Description | An issue was discovered in Valve Steam Client 2.10.91.91. The installer allows local users to gain NT AUTHORITY\SYSTEM privileges because some parts of %PROGRAMFILES(X86)%\Steam and/or %COMMONPROGRAMFILES(X86)%\Steam have weak permissions during a critical time window. An attacker can make this time window arbitrarily long by using opportunistic locks. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| steam (PTS) | jessie/non-free | 1.0.0.49-1 | fixed |
| stretch/non-free | 1.0.0.54-2 | fixed |
| buster/non-free | 1.0.0.68-1~deb10u1 | fixed |
| bullseye/non-free | 1.0.0.68-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| steam | source | (unstable) | (not affected) | | | |
Notes
- steam <not-affected> (Steam on Windows)