Teeworlds up to 0.6.3 Snap engine/client/client.cpp ProcessServerPacket memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.2 | $0-$5k | 0.00 |
A vulnerability has been found in Teeworlds up to 0.6.3 and classified as critical. Affected by this vulnerability is the function CClient::ProcessServerPacket
of the file engine/client/client.cpp of the component Snap Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
The CClient::ProcessServerPacket method in engine/client/client.cpp in Teeworlds before 0.6.4 allows remote servers to write to arbitrary physical memory locations and possibly execute arbitrary code via vectors involving snap handling.
The bug was discovered 11/16/2016. The weakness was presented 02/22/2017 by Felix Geyer (oss-sec). The advisory is shared at openwall.com. This vulnerability is known as CVE-2016-9400 since 11/17/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.
The vulnerability was handled as a non-public zero-day exploit for at least 13 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 95402 (Fedora 24 : teeworlds (2016-16a522f9a6)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.
Upgrading to version 0.6.4 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (95402).
Product
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
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CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.4
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
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VulDB Base Score: 🔍
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Exploiting
Class: Memory corruptionCWE: CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Nessus ID: 95402
Nessus Name: Fedora 24 : teeworlds (2016-16a522f9a6)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 57329
OpenVAS Name: Fedora Update for teeworlds FEDORA-2016-df20b90635
OpenVAS File: 🔍
OpenVAS Family: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Teeworlds 0.6.4
Timeline
11/16/2016 🔍11/16/2016 🔍
11/17/2016 🔍
11/29/2016 🔍
11/30/2016 🔍
02/22/2017 🔍
02/22/2017 🔍
02/23/2017 🔍
09/02/2020 🔍
Sources
Advisory: openwall.comResearcher: Felix Geyer
Status: Not defined
Confirmation: 🔍
CVE: CVE-2016-9400 (🔍)
SecurityFocus: 94381 - Teeworlds 'client.cpp' Memory Corruption Vulnerability
OSVDB: - CVE-2016-9400 - Teeworlds - Arbitrary Write Issue
Entry
Created: 02/23/2017 09:42Updated: 09/02/2020 12:18
Changes: 02/23/2017 09:42 (76), 09/02/2020 12:18 (3)
Complete: 🔍
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