CVE-2020-1967
Fixed in a distro release EPSS 53%
Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).
Products: OpenSSL
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| crates.io | openssl-src | 111.9.0 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.10 | openssl | 1.1.1g-r0 |
| Alpine 3.11 | openssl | 1.1.1g-r0 |
| Alpine 3.12 | openssl | 1.1.1g-r0 |
| Alpine 3.13 | openssl | 1.1.1g-r0 |
| Alpine 3.14 | openssl | 1.1.1g-r0 |
| Alpine 3.15 | openssl | 1.1.1g-r0 |
| Alpine 3.15 | openssl3 | 1.1.1g-r0 |
| Alpine 3.16 | openssl | 1.1.1g-r0 |
| Alpine 3.16 | openssl3 | 1.1.1g-r0 |
| Alpine 3.17 | openssl | 1.1.1g-r0 |
| Alpine 3.18 | openssl | 1.1.1g-r0 |
| Alpine 3.19 | openssl | 1.1.1g-r0 |
| Alpine 3.20 | openssl | 1.1.1g-r0 |
| Alpine 3.21 | openssl | 1.1.1g-r0 |
| Alpine 3.22 | openssl | 1.1.1g-r0 |
| Alpine 3.23 | openssl | 1.1.1g-r0 |
| Alpine 3.24 | openssl | 1.1.1g-r0 |
| Alpine 3.9 | openssl | 1.1.1g-r0 |
| Chainguard | mysql-8.0 | 8.0.38-r0 |
| Chainguard | mysql-8.0-bitnami-compat | 8.0.38-r0 |
| Chainguard | mysql-8.0-client | 8.0.38-r0 |
| Chainguard | mysql-8.0-dev | 8.0.38-r0 |
| Chainguard | mysql-8.0-iamguarded-compat | 8.0.38-r0 |
| Chainguard | mysql-8.0-oci-entrypoint | 8.0.38-r0 |
| Chainguard | mysql-8.0-oci-entrypoint-compat | 8.0.38-r0 |
| Debian 10 | openssl | 1.1.1d-0+deb10u3 |
| Debian 12 | openssl | 1.1.1g-1 |
| Debian 13 | openssl | 1.1.1g-1 |
| Debian 14 | openssl | 1.1.1g-1 |
| SUSE Linux Enterprise Module for Development Tools 15 SP1 | rust | 1.43.1-12.1 |
| SUSE Linux Enterprise Module for Development Tools 15 SP2 | rust | 1.43.1-12.1 |
| SUSE Linux Enterprise Server 12 SP4 | openssl-1_1 | 1.1.1d-2.23.1 |
| SUSE Linux Enterprise Server 12 SP5 | openssl-1_1 | 1.1.1d-2.23.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | openssl-1_1 | 1.1.1d-2.23.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | openssl-1_1 | 1.1.1d-2.23.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | openssl-1_1 | 1.1.1d-2.23.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | openssl-1_1 | 1.1.1d-2.23.1 |
| Ubuntu 20.04 LTS | openssl | 1.1.1f-1ubuntu2 |
| openSUSE Leap 15.1 | rust | 1.43.1-lp151.5.13.1 |
| openSUSE Leap 15.1 | rust-cbindgen | 0.14.1-lp151.8.2 |
| openSUSE Leap 15.2 | rust | 1.43.1-lp152.3.5.1 |
| openSUSE Leap 15.2 | rust-cbindgen | 0.14.1-lp152.2.4.1 |
| openSUSE Tumbleweed | openssl-1_1 | 1.1.1l-1.2 |
| openSUSE Tumbleweed | rust1.53 | 1.53.0-2.5 |