CVSS 3.1
9.1 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HCVE-2024-21524
Critical (9.1) in magiclen stringbuilder. EPSS 0.9% chance of exploitation in the next 30 days.
All versions of the package node-stringbuilder are vulnerable to Out-of-bounds Read due to incorrect memory length calculation, by calling ToBuffer, ToString, or CharAt on a StringBuilder object with a non-empty string value input. It's possible to return previously allocated memory, for example, by providing negative indexes, leading to an Information Disclosure.
Severity
- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
- CWE
- CWE-125
- Published
- Modified
- Record from
- the NVD, synced
Affected
- magiclen:stringbuilder
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-g533-xq5w-jmf3 | npm | node-stringbuilder | <=2.2.7 | no fix published |
References
- https://gist.github.com/dellalibera/0bb022811224f81d998fa61c3175ee67
- https://github.com/magiclen/node-stringbuilder/blob/5c2797d3d6bf8cb6d10fe1e077609cef9a5a7de0/src/node-stringbuilder.c%23L1281
- https://security.snyk.io/vuln/SNYK-JS-NODESTRINGBUILDER-6421617
- https://gist.github.com/dellalibera/0bb022811224f81d998fa61c3175ee67
- https://github.com/magiclen/node-stringbuilder/blob/5c2797d3d6bf8cb6d10fe1e077609cef9a5a7de0/src/node-stringbuilder.c%23L1281