CVE-2020-26939

Katalog CVE

CVSS 5.3 · Medium EPSS 0,92%

Kerentanan Observable Discrepancy pada bouncycastle fips java api, bouncycastle legion-of-the-bouncy-castle. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

In Legion of the Bouncy Castle BC before 1.61 and BC-FJA before 1.0.1.2, attackers can obtain sensitive information about a private exponent because of Observable Differences in Behavior to Error Inputs. This occurs in org.bouncycastle.crypto.encodings.OAEPEncoding. Sending invalid ciphertext that decrypts to a short payload in the OAEP Decoder could result in the throwing of an early exception, potentially leaking some information about the private exponent of the RSA private key performing the encryption.

Rincian

Terbit di NVD

2 November 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-203: Observable Discrepancy

EPSS (30 hari)

0,92% peluang dieksploitasi; lebih tinggi dari 59,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/bcgit/bc-java/wiki/CVE-2020-26939 patch · advisory pihak ketiga
• https://lists.apache.org/thread.html/r8c36ba34e80e05eecb1f80071cc834d705616f315b634ec0c7d8f42e%40%3Cissues.sol...