CVE-2020-26939
Description
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.
Risk Information
Base Score
5.3
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS Score
Exploitation Probability
2.437
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle-bcprov-jdk15on 1.61 | Windows |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle-bcprov-jdk15to18 1.61 | Windows |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle-bc-fips 1.0.2 | Windows |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle-bcprov-ext-jdk15on 1.61 | Windows |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle-bcprov-ext-jdk16 1.61 | Windows |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle-bcprov-jdk16 1.61 | Windows |
| Multiple Vulnerabilities are affected in IBM Security Guardium 11.3 | Windows |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle - bcprov-jdk14 1.61 | Windows |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle - bcprov-jdk15 1.61 | Windows |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle-bcprov-jdk15on for Linux 1.61 | Linux |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle-bcprov-jdk15to18 for Linux 1.61 | Linux |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle-bc-fips for Linux 1.0.2 | Linux |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle-bcprov-ext-jdk15on for Linux 1.61 | Linux |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle-bcprov-ext-jdk16 for Linux 1.61 | Linux |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle-bcprov-jdk16 for Linux 1.61 | Linux |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle - bcprov-jdk14 for Linux 1.61 | Linux |
| Vulnerabilities CVE-2020-26939 are fixed in BouncyCastle - bcprov-jdk15 for Linux 1.61 | Linux |
Patch Details
No records foundReferences
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234