CVE catalog
CVE-2024-14041
In Bouncy Castle for Java from 1.73 to before 1.78, three ML-KEM (CRYSTALS-Kyber) routines divided secret-derived polynomial coefficients by the modulus q: Poly.toMsg, which decodes the decrypted mess
- Severity
- High · CVSS 8.2
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.46% · Oct 25, 2026
In Bouncy Castle for Java from 1.73 to before 1.78, three ML-KEM (CRYSTALS-Kyber) routines divided secret-derived polynomial coefficients by the modulus q: Poly.toMsg, which decodes the decrypted message, and the ciphertext compression routines Poly.compressPoly and PolyVec.compressPolyVec. An attacker able to measure the timing of a large number of decapsulations performed with the same long-term private key can recover that key. These are the KyberSlash1 (Poly.toMsg) and KyberSlash2 (ciphertext compression) divisions. Compression performed during encapsulation operates on values that become the public ciphertext and is not affected.
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 |
| Cpe | bc-java | Not reported | 1.78 | fixed |
| Ubuntu | bouncycastle | pro | 1.72-2 | vulnerable |
| Ubuntu | bouncycastle | pro | 1.77-1 | vulnerable |
| Ubuntu | bouncycastle | pro | 1.77-1ubuntu0.1~esm1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | bouncycastle | source | sid | 1.80-1 | not yet assigned | Not reported | Not reported |
| Debian | bouncycastle | source | forky | 1.80-1 | not yet assigned | Not reported | Not reported |
| Debian | bouncycastle | source | trixie | 1.80-1 | not yet assigned | Not reported | Not reported |
| Debian | bouncycastle | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Cpe | bc-java | cpe | Not reported | 1.78 | Not reported | NVD-CVE-2024-14041 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libbcjmail-java]Affected
Source package: [bouncycastle]
Details (2)
1.72-2· all · bookwormAffected
nvd · bouncycastle · debian · bookworm; nvd · bouncycastle · debian · 12
1.72-2· all · bookwormAffected
nvd · bouncycastle · debian · bookworm; nvd · bouncycastle · debian · 12
- [libbcmail-java]Affected
Source package: [bouncycastle]
Details (2)
1.72-2· all · bookwormAffected
nvd · bouncycastle · debian · bookworm; nvd · bouncycastle · debian · 12
1.72-2· all · bookwormAffected
nvd · bouncycastle · debian · bookworm; nvd · bouncycastle · debian · 12
- [libbcpg-java]Affected
Source package: [bouncycastle]
Details (2)
1.72-2· all · bookwormAffected
nvd · bouncycastle · debian · bookworm; nvd · bouncycastle · debian · 12
1.72-2· all · bookwormAffected
nvd · bouncycastle · debian · bookworm; nvd · bouncycastle · debian · 12
- [libbcpkix-java]Affected
Source package: [bouncycastle]
Details (2)
1.72-2· all · bookwormAffected
nvd · bouncycastle · debian · bookworm; nvd · bouncycastle · debian · 12
1.72-2· all · bookwormAffected
nvd · bouncycastle · debian · bookworm; nvd · bouncycastle · debian · 12
- [libbcprov-java]Affected
Source package: [bouncycastle]
Details (2)
1.72-2· all · bookwormAffected
nvd · bouncycastle · debian · bookworm; nvd · bouncycastle · debian · 12
1.72-2· all · bookwormAffected
nvd · bouncycastle · debian · bookworm; nvd · bouncycastle · debian · 12
- [libbctls-java]Affected
Source package: [bouncycastle]
Details (2)
1.72-2· all · bookwormAffected
nvd · bouncycastle · debian · bookworm; nvd · bouncycastle · debian · 12
1.72-2· all · bookwormAffected
nvd · bouncycastle · debian · bookworm; nvd · bouncycastle · debian · 12
- [libbcutil-java]Affected
Source package: [bouncycastle]
Details (2)
1.72-2· all · bookwormAffected
nvd · bouncycastle · debian · bookworm; nvd · bouncycastle · debian · 12
1.72-2· all · bookwormAffected
nvd · bouncycastle · debian · bookworm; nvd · bouncycastle · debian · 12
[Debian 13 (Trixie)]
- [libbcjmail-java]Fixed
Source package: [bouncycastle]
Details (2)
1.80-3· all · trixieFixed · Fixed:
1.80-1nvd · bouncycastle · debian · 13
1.80-3· all · trixieFixed · Fixed:
1.80-1nvd · bouncycastle · debian · 13
- [libbcmail-java]Fixed
Source package: [bouncycastle]
Details (2)
1.80-3· all · trixieFixed · Fixed:
1.80-1nvd · bouncycastle · debian · 13
1.80-3· all · trixieFixed · Fixed:
1.80-1nvd · bouncycastle · debian · 13
- [libbcpg-java]Fixed
Source package: [bouncycastle]
Details (2)
1.80-3· all · trixieFixed · Fixed:
1.80-1nvd · bouncycastle · debian · 13
1.80-3· all · trixieFixed · Fixed:
1.80-1nvd · bouncycastle · debian · 13
- [libbcpkix-java]Fixed
Source package: [bouncycastle]
Details (2)
1.80-3· all · trixieFixed · Fixed:
1.80-1nvd · bouncycastle · debian · 13
1.80-3· all · trixieFixed · Fixed:
1.80-1nvd · bouncycastle · debian · 13
- [libbcprov-java]Fixed
Source package: [bouncycastle]
Details (2)
1.80-3· all · trixieFixed · Fixed:
1.80-1nvd · bouncycastle · debian · 13
1.80-3· all · trixieFixed · Fixed:
1.80-1nvd · bouncycastle · debian · 13
- [libbctls-java]Fixed
Source package: [bouncycastle]
Details (2)
1.80-3· all · trixieFixed · Fixed:
1.80-1nvd · bouncycastle · debian · 13
1.80-3· all · trixieFixed · Fixed:
1.80-1nvd · bouncycastle · debian · 13
- [libbcutil-java]Fixed
Source package: [bouncycastle]
Details (2)
1.80-3· all · trixieFixed · Fixed:
1.80-1nvd · bouncycastle · debian · 13
1.80-3· all · trixieFixed · Fixed:
1.80-1nvd · bouncycastle · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2024-14041]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2024-14041]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2024-14041]
- [https://security-tracker.debian.org/tracker/CVE-2024-14041]
- [https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-14041.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2550.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]