CVE-2020-15254

Katalog CVE

CVSS 9.8 · Critical EPSS 2,7%

Kerentanan Improper Restriction of Operations within the Bounds of a Memory Buffer pada crossbeam project crossbeam. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

Crossbeam is a set of tools for concurrent programming. In crossbeam-channel before version 0.4.4, the bounded channel incorrectly assumes that `Vec::from_iter` has allocated capacity that same as the number of iterator elements. `Vec::from_iter` does not actually guarantee that and may allocate extra memory. The destructor of the `bounded` channel reconstructs `Vec` from the raw pointer based on the incorrect assumes described above. This is unsound and causing deallocation with the incorrect capacity when `Vec::from_iter` has allocated different sizes with the number of iterator elements. This has been fixed in crossbeam-channel 0.4.4.

Rincian

Terbit di NVD

16 Oktober 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-401: Missing Release of Memory after Effective Lifetime

EPSS (30 hari)

2,7% peluang dieksploitasi; lebih tinggi dari 85,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/RustSec/advisory-db/pull/425 patch · advisory pihak ketiga
• https://github.com/crossbeam-rs/crossbeam/pull/533 exploit · patch · advisory pihak ketiga
• https://github.com/crossbeam-rs/crossbeam/issues/539 exploit · advisory pihak ketiga
• https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-v5m7-53cv-f3hx advisory pihak ketiga