CVE catalog
CVE-2024-34447
Bouncy Castle vulnerabilities
- Severity
- Medium · CVSS 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.77% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | bouncycastle | sid | 1.86.2-1 | fixed |
| Debian | bouncycastle | forky | 1.86-1 | fixed |
| Debian | bouncycastle | trixie | 1.80-3 | fixed |
| Debian | bouncycastle | bookworm | 1.72-2 | vulnerable |
| Ubuntu | bouncycastle | noble | Not reported | vulnerable |
| Ubuntu | bouncycastle | noble | 1.77-1ubuntu0.1~esm1 | fixed |
| Ubuntu | libbcjmail-java | noble | 1.77-1ubuntu0.1~esm1 | fixed |
| Ubuntu | libbcmail-java | noble | 1.77-1ubuntu0.1~esm1 | fixed |
| Ubuntu | libbcpg-java | noble | 1.77-1ubuntu0.1~esm1 | fixed |
| Ubuntu | libbcpkix-java | noble | 1.77-1ubuntu0.1~esm1 | fixed |
| Ubuntu | libbcprov-java | noble | 1.77-1ubuntu0.1~esm1 | fixed |
| Ubuntu | libbctls-java | noble | 1.77-1ubuntu0.1~esm1 | fixed |
| Ubuntu | libbcutil-java | noble | 1.77-1ubuntu0.1~esm1 | fixed |
| Ubuntu | bouncycastle | pro | 1.72-2 | vulnerable |
| Ubuntu | bouncycastle | pro | 1.77-1 | vulnerable |
| Ubuntu | bouncycastle | pro | 1.77-1ubuntu0.1~esm1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | bouncycastle | source | sid | 1.80-1 | not yet assigned | Not reported | [1070655] |
| Debian | bouncycastle | source | forky | 1.80-1 | not yet assigned | Not reported | [1070655] |
| Debian | bouncycastle | source | trixie | 1.80-1 | not yet assigned | Not reported | [1070655] |
| Debian | bouncycastle | source | bookworm | (unfixed) | not yet assigned | Not reported | [1070655] |
| Ubuntu | bouncycastle | deb | noble | 1.77-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | libbcjmail-java | deb | noble | 1.77-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | libbcmail-java | deb | noble | 1.77-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | libbcpg-java | deb | noble | 1.77-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | libbcpkix-java | deb | noble | 1.77-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | libbcprov-java | deb | noble | 1.77-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | libbctls-java | deb | noble | 1.77-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | libbcutil-java | deb | noble | 1.77-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | bouncycastle | deb | pro | 1.77-1ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2024-34447 | Not reported |
Notes
[bookworm] bouncycastle: Minor issue
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2024-34447]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2024-34447]
- [https://security-tracker.debian.org/tracker/CVE-2024-34447]
- [https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-34447.json]
- [https://ubuntu.com/security/notices/USN-8108-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-1031.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [Ubuntu Security Notices (USN)]