# CVE-2020-1971: OpenSSL: CVE-2020-1971 EDIPARTYNAME NULL pointer de-reference

CVE-2020-1971 is fixed in 7 products on 1 platform, first by libssl1.0.0 1.0.2n-1ubuntu5.5, released December 7, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-1971
- Priority: Routine
- CVSS: 5.9 (Important)
- EPSS: 0.0699
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Dec 7, 2020
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1971

## Description

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.  Security Fix(es):  * openssl: EDIPARTYNAME NULL pointer de-reference (CVE-2020-1971)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  Bug Fix(es):  * Reject certificates with explicit EC parameters in strict mode (BZ#1891541)  * Add FIPS selftest for HKDF, SSKDF, SSHKDF, and TLS12PRF; add DH_compute_key KAT to DH selftest (BZ#1891542)

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libssl1.0.0 Ubuntu 18.04.6 LTS (bionic) | 1.0.2n-1ubuntu5.5 | [libssl1.0.0 1.0.2n-1ubuntu5.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.0.0-1.0.2n-1ubuntu5.5.md) | Dec 7, 2020 |
| Linux | libssl1.1 Ubuntu 18.04.6 LTS (bionic) | 1.1.1-1ubuntu2.1~18.04.7 | [libssl1.1 1.1.1-1ubuntu2.1~18.04.7](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.7.md) | Dec 7, 2020 |
| Linux | libssl1.1 Ubuntu 20.04 LTS (focal) | 1.1.1f-1ubuntu2.1 | [libssl1.1 1.1.1f-1ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.1.md) | Dec 7, 2020 |
| Linux | openssl RHEL 8 | 1:1.1.1g-12.el8_3 | [RHSA-2020:5476](https://patchblox.com/security/data/fix/linux/rhsa-2020-5476.md) | Dec 15, 2020 |
| Linux | openssl Ubuntu 18.04.6 LTS (bionic) | 1.1.1-1ubuntu2.1~18.04.7 | [openssl 1.1.1-1ubuntu2.1~18.04.7](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-openssl-1.1.1-1ubuntu2.1-18.04.7.md) | Dec 7, 2020 |
| Linux | openssl Ubuntu 20.04 LTS (focal) | 1.1.1f-1ubuntu2.1 | [openssl 1.1.1f-1ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-openssl-1.1.1f-1ubuntu2.1.md) | Dec 7, 2020 |
| Linux | openssl ol 8 | 1:1.1.1g-12.el8_3 | [ELSA-2020-5476](https://patchblox.com/security/data/fix/linux/elsa-2020-5476.md) | Dec 17, 2020 |
| Linux | openssl-devel RHEL 8 | 1:1.1.1g-12.el8_3 | [RHSA-2020:5476](https://patchblox.com/security/data/fix/linux/rhsa-2020-5476.md) | Dec 15, 2020 |
| Linux | openssl-devel ol 8 | 1:1.1.1g-12.el8_3 | [ELSA-2020-5476](https://patchblox.com/security/data/fix/linux/elsa-2020-5476.md) | Dec 17, 2020 |
| Linux | openssl-libs RHEL 8 | 1:1.1.1g-12.el8_3 | [RHSA-2020:5476](https://patchblox.com/security/data/fix/linux/rhsa-2020-5476.md) | Dec 15, 2020 |
| Linux | openssl-libs ol 8 | 1:1.1.1g-12.el8_3 | [ELSA-2020-5476](https://patchblox.com/security/data/fix/linux/elsa-2020-5476.md) | Dec 17, 2020 |
| Linux | openssl-perl RHEL 8 | 1:1.1.1g-12.el8_3 | [RHSA-2020:5476](https://patchblox.com/security/data/fix/linux/rhsa-2020-5476.md) | Dec 15, 2020 |
| Linux | openssl-perl ol 8 | 1:1.1.1g-12.el8_3 | [ELSA-2020-5476](https://patchblox.com/security/data/fix/linux/elsa-2020-5476.md) | Dec 17, 2020 |
| Linux | openssl1.0 Ubuntu 18.04.6 LTS (bionic) | 1.0.2n-1ubuntu5.5 | [openssl1.0 1.0.2n-1ubuntu5.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-openssl1.0-1.0.2n-1ubuntu5.5.md) | Dec 7, 2020 |

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