CVE catalog
CVE-2021-3450
openssl: CVE-2021-3450
- Severity
- High · CVSS 7.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 18.34% · Oct 25, 2026
The X509_V_FLAG_X509_STRICT flag enables additional security checks of the certificates present in a certificate chain. It is not set by default. Starting from OpenSSL version 1.1.1h a check to disallow certificates in the chain that have explicitly encoded elliptic curve parameters was added as an additional strict check. An error in the implementation of this check meant that the result of a previous check to confirm that certificates in the chain are valid CA certificates was overwritten. This effectively bypasses the check that non-CA certificates must not be able to issue other certificates. If a "purpose" has been configured then there is a subsequent opportunity for checks that the certificate is a valid CA. All of the named "purpose" values implemented in libcrypto perform this check. Therefore, where a purpose is set the certificate chain will still be rejected even when the strict flag has been used. A purpose is set by default in libssl client and server certificate verification routines, but it can be overridden or removed by an application. In order to be affected, an application must explicitly set the X509_V_FLAG_X509_STRICT verification flag and either not set a purpose for the certificate verification or, in the case of TLS client or server applications, override the default purpose. OpenSSL versions 1.1.1h and newer are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1h-1.1.1j).
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 | openssl | sid | 3.6.5-1 | fixed |
| Debian | openssl | forky | 3.6.5-1 | fixed |
| Debian | openssl | trixie | 3.5.7-1~deb13u2 | fixed |
| Debian | openssl | trixie-security | 3.5.7-1~deb13u3 | fixed |
| Debian | openssl | bookworm | 3.0.20-1~deb12u2 | fixed |
| Debian | openssl | bookworm-security | 3.0.22-1~deb12u2 | fixed |
| Cpe | openssl | Not reported | 1.1.1k | fixed |
| Cpe | freebsd | Not reported | Not reported | unknown |
| Cpe | santricity_smi-s_provider_firmware | Not reported | Not reported | unknown |
| Cpe | storagegrid_firmware | Not reported | Not reported | unknown |
| Cpe | linux | Not reported | Not reported | unknown |
| Cpe | cloud_volumes_ontap_mediator | Not reported | Not reported | unknown |
| Cpe | oncommand_workflow_automation | Not reported | Not reported | unknown |
| Cpe | ontap_select_deploy_administration_utility | Not reported | Not reported | unknown |
| Cpe | storagegrid | Not reported | Not reported | unknown |
| Cpe | fedora | Not reported | Not reported | unknown |
| Cpe | nessus | Not reported | Not reported | unknown |
| Cpe | nessus_agent | Not reported | Not reported | unknown |
| Cpe | nessus_network_monitor | Not reported | Not reported | unknown |
| Bitnami | node-min | Not reported | 10.24.1 | fixed |
| Bitnami | node-min | Not reported | 12.22.1 | fixed |
| Bitnami | node-min | Not reported | 14.16.1 | fixed |
| Bitnami | node-min | Not reported | 15.14.0 | fixed |
| Bitnami | node | Not reported | 10.24.1 | fixed |
| Bitnami | node | Not reported | 12.22.1 | fixed |
| Bitnami | node | Not reported | 14.16.1 | fixed |
| Bitnami | node | Not reported | 15.14.0 | fixed |
| Alpine | openssl | 3.10 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.11 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.12 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.13 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.14 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.15 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.16 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.17 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.18 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.19 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.20 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.21 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.22 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.23 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.24 | 1.1.1k-r0 | fixed |
| Alpine | openssl | 3.9 | 1.1.1k-r0 | fixed |
| Alpine | openssl3 | 3.15 | 1.1.1k-r0 | fixed |
| Alpine | openssl3 | 3.16 | 1.1.1k-r0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | openssl | source | sid | 1.1.1k-1 | not yet assigned | Not reported | Not reported |
| Debian | openssl | source | forky | 1.1.1k-1 | not yet assigned | Not reported | Not reported |
| Debian | openssl | source | trixie | 1.1.1k-1 | not yet assigned | Not reported | Not reported |
| Debian | openssl | source | bookworm | 1.1.1k-1 | not yet assigned | Not reported | Not reported |
| Cpe | openssl | cpe | Not reported | 1.1.1k | Not reported | NVD-CVE-2021-3450 | Not reported |
| Bitnami | node-min | Bitnami | Not reported | 10.24.1 | Not reported | BIT-NODE-MIN-2021-3450 | Not reported |
| Bitnami | node-min | Bitnami | Not reported | 12.22.1 | Not reported | BIT-NODE-MIN-2021-3450 | Not reported |
| Bitnami | node-min | Bitnami | Not reported | 14.16.1 | Not reported | BIT-NODE-MIN-2021-3450 | Not reported |
| Bitnami | node-min | Bitnami | Not reported | 15.14.0 | Not reported | BIT-NODE-MIN-2021-3450 | Not reported |
| Bitnami | node | Bitnami | Not reported | 10.24.1 | Not reported | BIT-NODE-2021-3450 | Not reported |
| Bitnami | node | Bitnami | Not reported | 12.22.1 | Not reported | BIT-NODE-2021-3450 | Not reported |
| Bitnami | node | Bitnami | Not reported | 14.16.1 | Not reported | BIT-NODE-2021-3450 | Not reported |
| Bitnami | node | Bitnami | Not reported | 15.14.0 | Not reported | BIT-NODE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.10 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.11 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.12 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.13 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.14 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.15 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.16 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.17 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.18 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.19 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.20 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.21 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.22 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.23 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.24 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl | apk | 3.9 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl3 | apk | 3.15 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
| Alpine | openssl3 | apk | 3.16 | 1.1.1k-r0 | Not reported | ALPINE-CVE-2021-3450 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [libssl3]Unknown
Source package: [openssl]
Details (6)
3.0.20-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.20-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.20-1~deb12u2· amd64 · bookworm-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.20-1~deb12u2· arm64 · bookworm-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.17-1~deb12u2· amd64 · bookworm-updatesFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.17-1~deb12u2· arm64 · bookworm-updatesFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
- [libssl-dev]Unknown
Source package: [openssl]
Details (6)
3.0.20-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.20-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.20-1~deb12u2· amd64 · bookworm-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.20-1~deb12u2· arm64 · bookworm-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.17-1~deb12u2· amd64 · bookworm-updatesFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.17-1~deb12u2· arm64 · bookworm-updatesFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
- [libssl-doc]Unknown
Source package: [openssl]
Details (6)
3.0.20-1~deb12u2· all · bookwormFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.20-1~deb12u2· all · bookwormFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.20-1~deb12u2· all · bookworm-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.20-1~deb12u2· all · bookworm-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.17-1~deb12u2· all · bookworm-updatesFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.17-1~deb12u2· all · bookworm-updatesFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
- [openssl]Unknown
Details (6)
3.0.20-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.20-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.20-1~deb12u2· amd64 · bookworm-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.20-1~deb12u2· arm64 · bookworm-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.17-1~deb12u2· amd64 · bookworm-updatesFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
3.0.17-1~deb12u2· arm64 · bookworm-updatesFixed · Fixed:
1.1.1k-1dsa · openssl · debian · bookworm; dsa · openssl · debian · 12
[Debian 13 (Trixie)]
- [libssl3t64]Unknown
Source package: [openssl]
Details (6)
3.5.6-1~deb13u2· amd64 · trixieFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
- [libssl-dev]Unknown
Source package: [openssl]
Details (6)
3.5.6-1~deb13u2· amd64 · trixieFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
- [libssl-doc]Unknown
Source package: [openssl]
Details (6)
3.5.6-1~deb13u2· all · trixieFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.6-1~deb13u2· all · trixieFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.6-1~deb13u2· all · trixie-security · Historical versionFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u2· all · trixie-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u2· all · trixie-security · Historical versionFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u3· all · trixie-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
- [openssl]Unknown
Details (6)
3.5.6-1~deb13u2· amd64 · trixieFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
- [openssl-provider-fips]Unknown
Source package: [openssl]
Details (6)
3.5.6-1~deb13u2· amd64 · trixieFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
- [openssl-provider-legacy]Unknown
Source package: [openssl]
Details (6)
3.5.6-1~deb13u2· amd64 · trixieFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
1.1.1k-1dsa · openssl · debian · 13
Observed:
References
- [https://cert-portal.siemens.com/productcert/csaf/ssa-389290.json]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2021_1024.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2021-3450]
- [https://osv.dev/vulnerability/ALPINE-CVE-2021-3450]
- [https://osv.dev/vulnerability/BIT-node-2021-3450]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2021-3450]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2021-3450]
- [https://security-tracker.debian.org/tracker/CVE-2021-3450]
- [https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-3450.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2025-0227.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]