CVE-2017-11521

Publication date 22 July 2017

Last updated 18 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

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.

From the Ubuntu Security Team

Gregor Jasny discovered that reSIProcate incorrectly handled a large number of media connections. A remote attacker could exploit by triggering many media connections to cause reSIProcate to crash, resulting in a denial of service (memory consumption).

Status

Show unmaintained releases

Package	Ubuntu Release	Status
resiprocate	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.10 oracular	Not in release
	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	23.04 lunar	Not in release
	22.10 kinetic	Not in release
	22.04 LTS jammy	Not in release
	21.10 impish	Not in release
	21.04 hirsute	Not in release
	20.10 groovy	Not in release
	20.04 LTS focal	Not in release
	19.10 eoan	Not in release
	19.04 disco	Not in release
	18.10 cosmic	Ignored end of life
	18.04 LTS bionic	Vulnerable
	17.10 artful	Ignored end of life
	17.04 zesty	Ignored end of life
	16.04 LTS xenial	Vulnerable
	14.04 LTS trusty	Fixed 1.9.7-4~ubuntu14.04.1+esm1

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
resiprocate	Other: https://github.com/resiprocate/resiprocate/pull/88/commits/4b8ffa5afd3291a2701f8d39c31ada443f79a5c8

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H