CVE-2021-46848 · cross-distro fix matrix

CVE-2021-46848: GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der.

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-46848 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

libtasn1-6→ fixed in4.16.0-2+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libtasn1-6
```

Debian bookworm

Source: Debian Security Tracker

libtasn1-6→ fixed in4.19.0-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libtasn1-6
```

Debian trixie

Source: Debian Security Tracker

libtasn1-6→ fixed in4.19.0-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libtasn1-6
```

Alpine v3.20

Source: Alpine secdb

libtasn1→ fixed in4.19-r0

apk update && apk add --upgrade libtasn1

Alpine v3.21

Source: Alpine secdb

libtasn1→ fixed in4.19-r0

apk update && apk add --upgrade libtasn1

Alpine edge

Source: Alpine secdb

libtasn1→ fixed in4.19-r0

apk update && apk add --upgrade libtasn1

Alpine v3.18

Source: Alpine secdb

libtasn1→ fixed in4.19-r0

apk update && apk add --upgrade libtasn1

Alpine v3.19

Source: Alpine secdb

libtasn1→ fixed in4.19-r0

apk update && apk add --upgrade libtasn1

Are YOU affected by CVE-2021-46848?

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

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