| Name | CVE-2025-23165 |
| Description | In Node.js, the `ReadFileUtf8` internal binding leaks memory due to a corrupted pointer in `uv_fs_s.file`: a UTF-16 path buffer is allocated but subsequently overwritten when the file descriptor is set. This results in an unrecoverable memory leak on every call. Repeated use can cause unbounded memory growth, leading to a denial of service. Impact: * This vulnerability affects APIs relying on `ReadFileUtf8` on Node.js release lines: v20 and v22. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1105832 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| nodejs (PTS) | bullseye | 12.22.12~dfsg-1~deb11u4 | fixed |
| bullseye (security) | 12.22.12~dfsg-1~deb11u7 | fixed | |
| bookworm | 18.19.0+dfsg-6~deb12u2 | vulnerable | |
| bookworm (security) | 18.19.0+dfsg-6~deb12u1 | vulnerable | |
| trixie, sid | 20.19.2+dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| nodejs | source | bullseye | (not affected) | |||
| nodejs | source | (unstable) | 20.19.2+dfsg-1 | 1105832 |
[bullseye] - nodejs <not-affected> (The vulnerable code was introduced later)
https://nodejs.org/en/blog/vulnerability/may-2025-security-releases#corrupted-pointer-in-nodefsreadfileutf8const-functioncallbackinfovalue-args-when-args0-is-a-string-cve-2025-23165---low
https://github.com/nodejs/node/issues/57800
Fixed by: https://github.com/nodejs/node/commit/9e13bf0a81e15c7b3a9f1826dccbcea991d7e63a (v20.19.2)
Introduced by: https://github.com/nodejs/node/commit/938471ef556f2d64257059b60889a8c84621eea6 (v20.8.0)