by Kastro
Paper/Archive/CVE-2021-32292

CVE-2021-32292

Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP — An issue was discovered in json-c from 20200420 (post 0.14 unreleased code) through 0.15-20200726.

EPSS 1%public exploitCVSS 9.8
critical.is priorityof 100
54
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 71.5.715 × 2014.3Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
n/an/a–CNA
SIMATIC S7-1500 CPU 1518-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP
SIMATIC S7-1500 CPU 1518-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP
SIPLUS S7-1500 CPU 1518-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

refgithub.com/json-c/json-c/issues/654advisorydebian.org/security/2023/dsa-5486refsecurity.netapp.com/advisory/ntap-20230929-0010refcert-portal.siemens.com/productcert/html/ssa-398330.html