| Name | CVE-2020-15522 |
| Description | Bouncy Castle BC Java before 1.66, BC C# .NET before 1.8.7, BC-FJA before 1.0.1.2, 1.0.2.1, and BC-FNA before 1.0.1.1 have a timing issue within the EC math library that can expose information about the private key when an attacker is able to observe timing information for the generation of multiple deterministic ECDSA signatures. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| bouncycastle (PTS) | jessie, jessie (lts) | 1.49+dfsg-3+deb8u3 | vulnerable |
| stretch (security) | 1.56-1+deb9u3 | vulnerable | |
| stretch (lts), stretch | 1.56-1+deb9u4 | vulnerable | |
| buster (security), buster, buster (lts) | 1.60-1+deb10u1 | vulnerable | |
| bullseye | 1.68-2 | fixed | |
| bookworm | 1.72-2 | fixed | |
| sid, trixie | 1.77-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| bouncycastle | source | (unstable) | 1.68-1 |
[buster] - bouncycastle <no-dsa> (Minor issue)
[stretch] - bouncycastle <no-dsa> (Minor issue)
https://github.com/bcgit/bc-java/wiki/CVE-2020-15522
[jessie] - bouncycastle <no-dsa> (Minor issue)