CVE-2024-34447
May 03, 2024
An issue was discovered in the Bouncy Castle Crypto Package For Java before BC TLS Java 1.0.19 (ships with BC Java 1.78, BC Java (LTS) 2.73.6) and before BC FIPS TLS Java 1.0.19. When endpoint identification is enabled in the BCJSSE and an SSL socket is created without an explicit hostname (as happens with HttpsURLConnection), hostname verification could be performed against a DNS-resolved IP address in some situations, opening up a possibility of DNS poisoning.
Affected Packages
org.bouncycastle:bcprov-jdk15to18 (JAVA):
Affected version(s) >=1.63 <1.78Fix Suggestion:
Update to version 1.78org.bouncycastle:bcprov-jdk18on (JAVA):
Affected version(s) >=1.71 <1.78Fix Suggestion:
Update to version 1.78org.bouncycastle:bcprov-jdk14 (JAVA):
Affected version(s) >=1.61 <1.78Fix Suggestion:
Update to version 1.78org.bouncycastle:bcprov-jdk14 (JAVA):
Affected version(s) >=1.61 <1.78Fix Suggestion:
Update to version 1.78org.bouncycastle:bcprov-jdk18on (JAVA):
Affected version(s) >=1.71 <1.78Fix Suggestion:
Update to version 1.78org.bouncycastle:bcprov-jdk15to18 (JAVA):
Affected version(s) >=1.63 <1.78Fix Suggestion:
Update to version 1.78Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Validation of Certificate with Host Mismatch
EPSS
Base Score:
0.23
