Out-of-bounds Read Affecting fast-string-search package, versions *
Snyk CVSS
Attack Complexity
Low
Threat Intelligence
Exploit Maturity
Proof of concept
EPSS
0.05% (19th
percentile)
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Test your applications- Snyk ID SNYK-JS-FASTSTRINGSEARCH-2392368
- published 16 Jun 2022
- disclosed 3 Feb 2022
- credit Cristian-Alexandru Staicu
Introduced: 3 Feb 2022
CVE-2022-25872 Open this link in a new tabHow to fix?
There is no fixed version for fast-string-search.
Overview
fast-string-search is a module that can search substrings in a string by using N-API and boyer-moore-magiclen.
Affected versions of this package are vulnerable to Out-of-bounds Read due to incorrect memory freeing and length calculation for any non-string input as the source. This allows the attacker to read previously allocated memory.
###PoC
const fss = require('fast-string-search');
fss.indexOf("My password is joke 9", "is");
let res = fss.indexOf(1, "9");
// res will contain the index of "9" from the previous input and not the current one.
console.log(res)