Headline
CVE-2022-25872: Out-of-bounds Read in fast-string-search | CVE-2022-25872 | Snyk
All versions of package fast-string-search 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.
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snyk-id
SNYK-JS-FASTSTRINGSEARCH-2392368
published
16 Jun 2022
disclosed
3 Feb 2022
credit
Cristian-Alexandru Staicu
How 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)Related news
All versions of package fast-string-search 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.