Medium severity5.9NVD Advisory· Published May 20, 2021· Updated Jun 17, 2026
CVE-2020-15522
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.bouncycastle:bc-fipsMaven | < 1.0.2.1 | 1.0.2.1 |
org.bouncycastle:bcprov-ext-jdk15onMaven | < 1.66 | 1.66 |
org.bouncycastle:bcprov-ext-jdk16Maven | < 1.66 | 1.66 |
org.bouncycastle:bcprov-jdk14Maven | < 1.66 | 1.66 |
org.bouncycastle:bcprov-jdk15Maven | < 1.66 | 1.66 |
org.bouncycastle:bcprov-jdk15onMaven | < 1.66 | 1.66 |
org.bouncycastle:bcprov-jdk15to18Maven | < 1.66 | 1.66 |
org.bouncycastle:bcprov-jdk16Maven | < 1.66 | 1.66 |
BouncyCastleNuGet | < 1.8.7 | 1.8.7 |
Affected products
25- cpe:2.3:a:bouncycastle:bc-csharp:*:*:*:*:*:*:*:*Range: <1.8.7
- cpe:2.3:a:bouncycastle:bouncy_castle_fips_.net_api:*:*:*:*:*:*:*:*Range: <1.0.1.1
- cpe:2.3:a:bouncycastle:fips_java_api:*:*:*:*:*:*:*:*Range: <1.0.1.2
- cpe:2.3:a:bouncycastle:the_bouncy_castle_crypto_package_for_java:*:*:*:*:*:*:*:*Range: <1.66
- Bouncy Castle/BC Javadescription
- osv-coords20 versionspkg:apk/chainguard/elasticsearch-7pkg:apk/chainguard/elasticsearch-8pkg:apk/chainguard/elasticsearch-8-bitnamipkg:apk/chainguard/elasticsearch-8-configpkg:apk/chainguard/elasticsearch-8-iamguardedpkg:apk/chainguard/elasticsearch-configpkg:maven/org.bouncycastle/bc-fipspkg:maven/org.bouncycastle/bcprov-ext-jdk15onpkg:maven/org.bouncycastle/bcprov-ext-jdk16pkg:maven/org.bouncycastle/bcprov-jdk14pkg:maven/org.bouncycastle/bcprov-jdk15pkg:maven/org.bouncycastle/bcprov-jdk15onpkg:maven/org.bouncycastle/bcprov-jdk15to18pkg:maven/org.bouncycastle/bcprov-jdk16pkg:nuget/bouncycastlepkg:rpm/opensuse/bouncycastle&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/bouncycastle&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/bouncycastle&distro=openSUSE%20Tumbleweedpkg:rpm/suse/bouncycastle&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP2pkg:rpm/suse/bouncycastle&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP3
< 7.17.14-r2+ 19 more
- (no CPE)range: < 7.17.14-r2
- (no CPE)range: < 8.12.1-r0
- (no CPE)range: < 8.12.1-r0
- (no CPE)range: < 8.12.1-r0
- (no CPE)range: < 8.12.1-r0
- (no CPE)range: < 8.12.1-r0
- (no CPE)range: < 1.0.2.1
- (no CPE)range: < 1.66
- (no CPE)range: < 1.66
- (no CPE)range: < 1.66
- (no CPE)range: < 1.66
- (no CPE)range: < 1.66
- (no CPE)range: < 1.66
- (no CPE)range: < 1.66
- (no CPE)range: < 1.8.7
- (no CPE)range: < 1.64-lp152.2.3.1
- (no CPE)range: < 1.64-3.3.1
- (no CPE)range: < 1.68-3.2
- (no CPE)range: < 1.64-3.3.1
- (no CPE)range: < 1.64-3.3.1
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-6xx3-rg99-gc3pghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2020-15522ghsaADVISORY
- www.bouncycastle.org/releasenotes.htmlnvdRelease NotesVendor AdvisoryWEB
- security.netapp.com/advisory/ntap-20210622-0007ghsaWEB
- security.netapp.com/advisory/ntap-20210622-0007/nvd
News mentions
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