Resource Exhaustion Affecting nanopb package, versions [,0.3.9.7) [0.4.0,0.4.4)
Threat Intelligence
Exploit Maturity
Proof of concept
EPSS
0.34% (72nd
percentile)
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Test your applications- Snyk ID SNYK-PYTHON-NANOPB-1045832
- published 26 Nov 2020
- disclosed 25 Nov 2020
- credit niooss-ledger
Introduced: 25 Nov 2020
CVE-2020-26243 Open this link in a new tabHow to fix?
Upgrade nanopb to version 0.3.9.7, 0.4.4 or higher.
Overview
nanopb is a python binding for C package nanopb.
Affected versions of this package are vulnerable to Resource Exhaustion. Decoding a specifically formed message can leak memory if dynamic allocation is enabled and an oneof field contains a static submessage that contains a dynamic field, and the message being decoded contains the submessage multiple times. This is rare in normal messages, but it is a concern when untrusted data is parsed.
References
CVSS Scores
version 3.1