Jansson 2.7 and earlier allows context-dependent attackers to cause a denial of service (deep recursion, stack consumption, and crash) via crafted JSON data.

According to the version of the jansson package installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - Jansson 2.7 and earlier allows context-dependent     attackers to cause a denial of service (deep recursion,     stack consumption, and crash) via crafted JSON     data.(CVE-2016-4425)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Update to Jansson 2.9

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Gustavo Grieco discovered that jansson, a C library for encoding, decoding and manipulating JSON data, did not limit the recursion depth when parsing JSON arrays and objects. This could allow remote attackers to cause a denial of service (crash) via stack exhaustion, using crafted JSON data.

Applications that depend on Jansson, a C library for encoding, decoding and manipulating JSON data, could crash due to stack exhaustion while parsing a JSON file. This was caused due to an unlimited parsing depth when parsing JSON arrays and is now fixed by limiting the depth to 2048.

For Debian 7 'Wheezy', this problem has been fixed in version 2.3.1-2+deb7u1.

We recommend that you upgrade your jansson packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

QuickFuzz reports :

A crash caused by stack exhaustion parsing a JSON was found.

ID	Name	Product	Family	Severity
132132	EulerOS 2.0 SP3 : jansson (EulerOS-SA-2019-2597)	Nessus	Huawei Local Security Checks	high
131888	EulerOS 2.0 SP2 : jansson (EulerOS-SA-2019-2396)	Nessus	Huawei Local Security Checks	high
94817	Fedora 25 : jansson (2016-72a6c79ee1)	Nessus	Fedora Local Security Checks	high
93753	Fedora 23 : jansson (2016-cc7f19cb5b)	Nessus	Fedora Local Security Checks	high
93751	Fedora 24 : jansson (2016-59fda81436)	Nessus	Fedora Local Security Checks	high
91139	Debian DSA-3577-1 : jansson - security update	Nessus	Debian Local Security Checks	high
91133	Debian DLA-471-1 : jansson security update	Nessus	Debian Local Security Checks	high
90902	FreeBSD : jansson -- local denial of service vulnerabilities (a6cd01fa-11bd-11e6-bb3c-9cb654ea3e1c)	Nessus	FreeBSD Local Security Checks	high

Detections

Analytics

CVE-2016-4425

high

Tenable Plugins

high

high

high

high

high

high

high

high