CVE-2022-2929 · cross-distro fix matrix

CVE-2022-2929: In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory.

Affects 6 Linux releases across 6 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2022-2929 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

isc-dhcp→ fixed in4.4.1-2.3+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y isc-dhcp
```

Debian bookworm

Source: Debian Security Tracker

isc-dhcp→ fixed in4.4.3-2.1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y isc-dhcp
```

Debian trixie

Source: Debian Security Tracker

isc-dhcp→ fixed in4.4.3-2.1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y isc-dhcp
```

Alpine v3.20

Source: Alpine secdb

dhcp→ fixed in4.4.3_p1-r0
```
apk update && apk add --upgrade dhcp
```

Alpine v3.18

Source: Alpine secdb

dhcp→ fixed in4.4.3_p1-r0
```
apk update && apk add --upgrade dhcp
```

Alpine v3.19

Source: Alpine secdb

dhcp→ fixed in4.4.3_p1-r0
```
apk update && apk add --upgrade dhcp
```

Are YOU affected by CVE-2022-2929?

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-2022-2929dropped 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)