Bug 1954173 (CVE-2020-36325) - CVE-2020-36325 jansson: out-of-bounds read in json_loads() due to a parsing error
Summary: CVE-2020-36325 jansson: out-of-bounds read in json_loads() due to a parsing e...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2020-36325
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: 1954592 1954174 1954175
Blocks: 1954176
TreeView+ depends on / blocked
 
Reported: 2021-04-27 18:04 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-05-04 00:58 UTC (History)
15 users (show)

Fixed In Version:
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Doc Text:
A flaw was found in jansson. An out-of-bounds read-access bug is possible due to a parsing error in json_loads. The highest threat from this vulnerability is do system availability.
Clone Of:
Environment:
Last Closed: 2021-04-30 14:42:01 UTC
Embargoed:

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Description Guilherme de Almeida Suckevicz 2021-04-27 18:04:00 UTC 
An issue was discovered in Jansson through 2.13.1. Due to a parsing error in json_loads, there's an out-of-bounds read-access bug.

Reference:
https://github.com/akheron/jansson/issues/548
Comment 1 Guilherme de Almeida Suckevicz 2021-04-27 18:04:28 UTC 
Created jansson tracking bugs for this issue:

Affects: fedora-all [bug 1954174]


Created mingw-jansson tracking bugs for this issue:

Affects: fedora-all [bug 1954175]
Comment 3 Riccardo Schirone 2021-04-30 14:42:06 UTC 
Statement:

A CVE was incorrectly assigned for this issue, which was a problem in the fuzzer code and not in the jansson library itself.
Comment 4 Riccardo Schirone 2021-04-30 14:43:59 UTC 
See https://github.com/akheron/jansson/issues/548#issuecomment-828007511 for more details.
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