CVE-2021-32489

Katalog CVE

CVSS 4.4 · Medium EPSS 0,92%

Kerentanan Integer Overflow or Wraparound pada yubico yubihsm-shell. Skor CVSS 3.1 4.4 (Medium) menurut NVD.

Deskripsi (NVD)

An issue was discovered in the _send_secure_msg() function of Yubico yubihsm-shell through 2.0.3. The function does not correctly validate the embedded length field of an authenticated message received from the device because response_msg.st.len=8 can be accepted but triggers an integer overflow, which causes CRYPTO_cbc128_decrypt (in OpenSSL) to encounter an undersized buffer and experience a segmentation fault. The yubihsm-shell project is included in the YubiHSM 2 SDK product.

Rincian

Terbit di NVD

10 Mei 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-190: Integer Overflow or Wraparound

EPSS (30 hari)

0,92% peluang dieksploitasi; lebih tinggi dari 59,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://blog.inhq.net/posts/yubico-libyubihsm-vuln2/#second-attack-variant-cve-pending exploit · advisory pihak ketiga