#VU11994 Integer overflow in corosync - CVE-2018-1084

Vulnerability identifier: #VU11994

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-1084

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
corosync
Server applications / Frameworks for developing and running applications

Vendor: corosync

Description
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in exec/totemcrypto.c due to integer overflow. A remote attacker can cause the service to crash.

Mitigation
Update to version 2.4.4.

Vulnerable software versions

corosync: 2.4.3

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External links
https://github.com/corosync/corosync/commit/fc1d5418533c1faf21616b282c2559bed7d361c4

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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.