Bug 1032322 (CVE-2013-6370) - CVE-2013-6370 json-c: buffer overflow if size_t is larger than int
Summary: CVE-2013-6370 json-c: buffer overflow if size_t is larger than int
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2013-6370
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1085676 1085677 1085678 1086209 1097036 1097037
Blocks: 1028485 1032325
TreeView+ depends on / blocked
 
Reported: 2013-11-20 01:01 UTC by Vincent Danen
Modified: 2023-05-12 01:27 UTC (History)
9 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-06-11 05:47:43 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2014:0703 0 normal SHIPPED_LIVE Moderate: json-c security update 2014-06-10 16:34:10 UTC

Description Vincent Danen 2013-11-20 01:01:20 UTC 
Florian Weimer reported that the printbuf APIs used in the json-c library used ints for counting buffer lengths, which is inappropriate for 32bit architectures.  These functions need to be changed to using size_t if possible for sizes, or to be hardened against negative values if not.  This could be used to cause a denial of service in an application linked to the json-c library.


Acknowledgements:

This issue was discovered by Florian Weimer of the Red Hat Product Security Team.
Comment 3 Huzaifa S. Sidhpurwala 2014-04-09 06:18:53 UTC 
Public via:

https://github.com/json-c/json-c/commit/64e36901a0614bf64a19bc3396469c66dcd0b015
Comment 5 Huzaifa S. Sidhpurwala 2014-04-09 06:22:54 UTC 
Created json-c tracking bugs for this issue:

Affects: fedora-all [bug 1085676]
Affects: epel-all [bug 1085677]
Comment 7 Fedora Update System 2014-04-17 06:04:07 UTC 
json-c-0.11-6.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 8 Fedora Update System 2014-04-30 04:07:30 UTC 
json-c-0.11-6.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 10 errata-xmlrpc 2014-06-10 12:35:27 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 7

Via RHSA-2014:0703 https://rhn.redhat.com/errata/RHSA-2014-0703.html
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