Critical severity · published Aug 22, 2023
CVE-2021-32292
An issue was discovered in json-c from 20200420 (post 0.14 unreleased code) through 0.15-20200726
9.8
CVSS
1.4%
EPSS
No
On KEV
Description
An issue was discovered in json-c from 20200420 (post 0.14 unreleased code) through 0.15-20200726. A stack-buffer-overflow exists in the auxiliary sample program json_parse which is located in the function parseit.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AI
Active IQ Unified Manager · Netapp
All versions, or not specified · source: NVD
JS
Json-c · Json-c
0.15-20200726 · source: NVD
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-32292
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-32292
Exploit
https://github.com/json-c/json-c/issues/654
Third Party Advisory
https://security.netapp.com/advisory/ntap-20230929-0010/
Third Party Advisory
https://www.debian.org/security/2023/dsa-5486
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
More from Json-c
7.8
CVE-2020-12762
json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend
–
CVE-2013-6371
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
–
CVE-2013-6370
Buffer overflow in the printbuf APIs in json-c before 0.12 allows remote attackers to cause a denial of service via unspecified vectors