CVE-2018-12384 · cross-distro fix matrix

CVE-2018-12384: When handling a SSLv2-compatible ClientHello request, the server doesn't generate a new random value but sends an all-zero value instead. This results in full malleability of the ClientHello for SSLv2 used for TLS 1.2 in all versions prior to NSS 3.39. This does not impact TLS 1.3.

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

Fix per ecosystem

Each block below is a distro release where CVE-2018-12384 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

nss→ fixed in2:3.39-1urgency: low

sudo apt-get install --only-upgrade -y nss

Debian bookworm

Source: Debian Security Tracker

nss→ fixed in2:3.39-1urgency: low

sudo apt-get install --only-upgrade -y nss

Debian trixie

Source: Debian Security Tracker

nss→ fixed in2:3.39-1urgency: low

sudo apt-get install --only-upgrade -y nss

Alpine v3.20

Source: Alpine secdb

nss→ fixed in3.39-r0
```
apk update && apk add --upgrade nss
```

Alpine v3.21

Source: Alpine secdb

nss→ fixed in3.39-r0
```
apk update && apk add --upgrade nss
```

Alpine edge

Source: Alpine secdb

nss→ fixed in3.39-r0
```
apk update && apk add --upgrade nss
```

Alpine v3.18

Source: Alpine secdb

nss→ fixed in3.39-r0
```
apk update && apk add --upgrade nss
```

Alpine v3.19

Source: Alpine secdb

nss→ fixed in3.39-r0
```
apk update && apk add --upgrade nss
```

Are YOU affected by CVE-2018-12384?

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-2018-12384dropped 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)