CVE-2021-41099 · cross-distro fix matrix

CVE-2021-41099: Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the underlying string library can be used to corrupt the heap and potentially result with denial of service or remote code execution. The vulnerability involves changing the default proto-max-bulk-len confi

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-41099 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

redis→ fixed in5:6.0.16-1+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y redis
```

Debian bookworm

Source: Debian Security Tracker

redis→ fixed in5:6.0.16-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y redis
```

Debian trixie

Source: Debian Security Tracker

redis→ fixed in5:6.0.16-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y redis
```

Alpine v3.20

Source: Alpine secdb

redis→ fixed in6.2.6-r0
```
apk update && apk add --upgrade redis
```

Alpine v3.21

Source: Alpine secdb

redis→ fixed in6.2.6-r0
```
apk update && apk add --upgrade redis
```

Alpine edge

Source: Alpine secdb

redis→ fixed in6.2.6-r0
```
apk update && apk add --upgrade redis
```

Alpine v3.18

Source: Alpine secdb

redis→ fixed in6.2.6-r0
```
apk update && apk add --upgrade redis
```

Alpine v3.19

Source: Alpine secdb

redis→ fixed in6.2.6-r0
```
apk update && apk add --upgrade redis
```

Are YOU affected by CVE-2021-41099?

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

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

CVE-2021-41099dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.

See StackPatch ($99 lifetime)