Medium severity · published Jul 20, 2021
CVE-2020-36429
Variant_encodeJson in open62541 1.x before 1.0.4 has an out-of-bounds write for a large recursion depth
5.5
CVSS
0.3%
EPSS
No
On KEV
Description
Variant_encodeJson in open62541 1.x before 1.0.4 has an out-of-bounds write for a large recursion depth.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Open62541 · Open62541
1.0.0 before 1.0.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-36429
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-36429
Patch
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20578
Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/open62541/OSV-2020-153.yaml
Patch
https://github.com/open62541/open62541/commit/c800e2987b10bb3af6ef644b515b5d6392f8861d
Patch
https://github.com/open62541/open62541/compare/v1.0.3...v1.0.4
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