Lucene search

MitreCVE-2020-26939

HistoryNov 02, 2020 - 10:15 p.m.

CVE-2020-26939

2020-11-0222:15:13

CWE-203

mitre

web.nvd.nist.gov

cve-2020-26939

bouncy castle

rsa private key

security vulnerability

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

AI Score

5.2

Confidence

High

EPSS

0.001

Percentile

36.2%

JSON

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.

Affected configurations

Nvd

Node

bouncycastlelegion-of-the-bouncy-castleRange<1.61

bouncycastlelegion-of-the-bouncy-castle-fips-java-apiRange<1.0.1.2

VendorProductVersionCPE
bouncycastlelegion-of-the-bouncy-castle*cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle:*:*:*:*:*:*:*:*
bouncycastlelegion-of-the-bouncy-castle-fips-java-api*cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-fips-java-api:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
bouncycastle	legion-of-the-bouncy-castle	*	cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle::::::::
bouncycastle	legion-of-the-bouncy-castle-fips-java-api	*	cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-fips-java-api::::::::