PT-2020-18894 · Google+1 · Libprotobuf+1

Eyal Itkin · Published 2020-11-13 · Updated 2022-11-03 · CVE-2020-6019

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Valve's Game Networking Sockets versions prior to v1.2.0

Description The issue arises from improper handling of inlined statistics messages in the CConnectionTransportUDPBase::Received Data() function, leading to an exception thrown from libprotobuf and resulting in a crash.

Recommendations For versions prior to v1.2.0, update to version v1.2.0 or later to resolve the issue. As a temporary workaround, consider disabling the CConnectionTransportUDPBase::Received Data() function until a patch is available.

Exploit

Fix

Weakness Enumeration

CWE-248

Related Identifiers

CVE-2020-6019

Affected Products

Game Networking Sockets

Libprotobuf

References · 7

• 🔥 https://research.checkpoint.com/2020/game-on-finding-vulnerabilities-in-valves-steam-sockets · Exploit
• https://github.com/ValveSoftware/GameNetworkingSockets/commit/d944a10808891d202bb1d5e1998de6e0423af678 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2020-6019 · Security Note
• https://osv.dev/vulnerability/CVE-2020-6019 · Vendor Advisory
• https://t.me/cibsecurity/16300 · Telegram Post
• https://t.me/true_secator/1242 · Telegram Post
• https://t.me/cybersecuritytechnologies/2270 · Telegram Post