Fedora EPEL 7 update for teeworlds

1) Improper input validation

EUVDB-ID: #VU6784

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-9400

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to flaw in the CClient::ProcessServerPacket method in engine/client/client.cpp. A remote attacker can use specially crafted vectors involving snap handling to write to arbitrary physical memory locations and possibly execute arbitrary code.

Successful exploitation of the vulnerability may result in full access to the affected system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 7

teeworlds: before 0.6.4-2.el7

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:7:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:teeworlds:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2016-c7640e3ff5

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.