CVE-2021-3711 · cross-distro fix matrix

CVE-2021-3711: In order to decrypt SM2 encrypted data an application is expected to call the API function EVP_PKEY_decrypt(). Typically an application will call this function twice. The first time, on entry, the "out" parameter can be NULL and, on exit, the "outlen" parameter is populated with the buffer size requ

Affects 8 Linux releases across 9 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-3711 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

openssl→ fixed in1.1.1k-1+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssl
```

Debian bookworm

Source: Debian Security Tracker

openssl→ fixed in1.1.1l-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssl
```

Debian trixie

Source: Debian Security Tracker

openssl→ fixed in1.1.1l-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssl
```

Alpine v3.20

Source: Alpine secdb

openssl→ fixed in1.1.1l-r0
```
apk update && apk add --upgrade openssl
```

Alpine v3.21

Source: Alpine secdb

openssl→ fixed in1.1.1l-r0
```
apk update && apk add --upgrade openssl
```

Alpine edge

Source: Alpine secdb

openssl→ fixed in1.1.1l-r0
```
apk update && apk add --upgrade openssl
```

Alpine v3.18

Source: Alpine secdb

openssl→ fixed in1.1.1l-r0
```
apk update && apk add --upgrade openssl
```

openssl1.1-compat→ fixed in1.1.1l-r0

apk update && apk add --upgrade openssl1.1-compat

Alpine v3.19

Source: Alpine secdb

openssl→ fixed in1.1.1l-r0
```
apk update && apk add --upgrade openssl
```

Are YOU affected by CVE-2021-3711?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

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Continuous monitoring beats manual checking

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