GHSA-4h8f-2wvx-gg5w
Bouncy Castle Java Cryptography API vulnerable to DNS poisoning
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Maven | org.bouncycastle:bcprov-jdk18on | >= 1.61, < 1.78 | 1.78 |
| Maven | org.bouncycastle:bcprov-jdk15to18 | >= 1.61, < 1.78 | 1.78 |
| Maven | org.bouncycastle:bcprov-jdk14 | >= 1.61, < 1.78 | 1.78 |
| Maven | org.bouncycastle:bcprov-jdk12 | >= 1.61, < 1.78 | 1.78 |
| Maven | org.bouncycastle:bctls-fips | < 1.0.19 | 1.0.19 |
| Maven | org.bouncycastle:bcprov-lts8on | < 2.73.6 | 2.73.6 |
| Maven | org.bouncycastle:bcprov-jdk15on | >= 1.61, < 1.78 | 1.78 |
Details
As written in the advisory (Markdown source, shown as plain text).
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.
References
External links from the advisory. They lead to third-party sites.