CVE-2017-11521

The SdpContents::Session::Medium::parse function in resip/stack/SdpContents.cxx in reSIProcate 1.10.2 allows remote attackers to cause a denial of service (memory consumption) by triggering many media connections.

Weakness

The product does not properly control the allocation and maintenance of a limited resource.

Affected Software

Name	Vendor	Start Version	End Version
Resiprocate	Resiprocate	1.10.2 (including)	1.10.2 (including)
Resiprocate	Ubuntu	artful	*
Resiprocate	Ubuntu	bionic	*
Resiprocate	Ubuntu	cosmic	*
Resiprocate	Ubuntu	esm-apps/bionic	*
Resiprocate	Ubuntu	esm-apps/xenial	*
Resiprocate	Ubuntu	esm-infra-legacy/trusty	*
Resiprocate	Ubuntu	trusty	*
Resiprocate	Ubuntu	trusty/esm	*
Resiprocate	Ubuntu	upstream	*
Resiprocate	Ubuntu	xenial	*
Resiprocate	Ubuntu	zesty	*

Potential Mitigations

Mitigation of resource exhaustion attacks requires that the target system either:
The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.
The second solution is simply difficult to effectively institute – and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.

NVD	https://nvd.nist.gov/vuln/detail/CVE-2017-11521
CWE	https://cwe.mitre.org/data/definitions/400.html

Uncontrolled Resource Consumption

Weakness

Affected Software

Potential Mitigations

References

CVE-2017-11521

Uncontrolled Resource Consumption

Weakness

Affected Software

Potential Mitigations

Related Attack Patterns

References