CVE-2026-21900

Katalog CVE

CVSS 5.9 · Medium EPSS 0,60%

Kerentanan Out-of-bounds Read pada nasa cryptolib. Skor CVSS 3.1 5.9 (Medium) menurut NVD.

Deskripsi (NVD)

CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight System (cFS) and a ground station. Prior to version 1.4.3, an out-of-bounds heap read vulnerability in cryptography_encrypt() occurs when parsing JSON metadata from KMC server responses. The flawed strtok iteration pattern uses ptr + strlen(ptr) + 1 which reads one byte past allocated buffer boundaries when processing short or malformed metadata strings. This issue has been patched in version 1.4.3.

Rincian

Terbit di NVD

10 Januari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-125: Out-of-bounds Read

EPSS (30 hari)

0,60% peluang dieksploitasi; lebih tinggi dari 47,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/nasa/CryptoLib/security/advisories/GHSA-4g6v-36fv-qcvw exploit · advisory vendor
• https://github.com/nasa/CryptoLib/commit/2372efd3da1ccb226b4297222e25f41ecc84821d patch
• https://github.com/nasa/CryptoLib/releases/tag/v1.4.3 release notes