Vulnerability · Published May 3, 2024 · Assigned by mitre
CVE-2024-34447
High 7.5
In plain English
A high-severity security flaw in the bouncycastle package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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 & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | bouncycastle | no fix listed | DEBIAN-CVE-2024-34447 |
| Debian:13 | bouncycastle | 1.80-1 | DEBIAN-CVE-2024-34447 |
| Debian:14 | bouncycastle | 1.80-1 | DEBIAN-CVE-2024-34447 |
| Maven | org.bouncycastle:bcprov-jdk12 | 1.78 | GHSA-4h8f-2wvx-gg5w |
| Maven | org.bouncycastle:bcprov-jdk14 | 1.78 | GHSA-4h8f-2wvx-gg5w |
| Maven | org.bouncycastle:bcprov-jdk15on | 1.78 | GHSA-4h8f-2wvx-gg5w |
| Maven | org.bouncycastle:bcprov-jdk15to18 | 1.78 | GHSA-4h8f-2wvx-gg5w |
| Maven | org.bouncycastle:bcprov-jdk18on | 1.78 | GHSA-4h8f-2wvx-gg5w |
| Maven | org.bouncycastle:bcprov-lts8on | 2.73.6 | GHSA-4h8f-2wvx-gg5w |
| Maven | org.bouncycastle:bctls-fips | 1.0.19 | GHSA-4h8f-2wvx-gg5w |
Affected products (as reported)
Weakness: CWE-297 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N