CVE-2013-6371

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-04-22 · updated 2026-06-17
Weakness: CWE-310

Description

The hash functionality in json-c before 0.12 allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted JSON data, involving collisions.

Affected products

Fedoraproject Fedora: 20
Json-C: before 0.12-20140410 — fixed in 0.12-20140410

How to fix

Upgrade to a fixed version: Json-C 0.12-20140410. Check the vendor advisory for mitigations.

References

http://lists.fedoraproject.org/pipermail/package-announce/2014-April/131845.html
http://secunia.com/advisories/57791
http://www.mandriva.com/security/advisories?name=MDVSA-2014:079
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
http://www.securityfocus.com/bid/66715
https://bugzilla.redhat.com/show_bug.cgi?id=1032311
https://exchange.xforce.ibmcloud.com/vulnerabilities/92541
https://github.com/json-c/json-c/commit/64e36901a0614bf64a19bc3396469c66dcd0b015
http://lists.fedoraproject.org/pipermail/package-announce/2014-April/131845.html
http://secunia.com/advisories/57791
http://www.mandriva.com/security/advisories?name=MDVSA-2014:079
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html

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