CVE-2018-7456 · cross-distro fix matrix

CVE-2018-7456: A NULL Pointer Dereference occurs in the function TIFFPrintDirectory in tif_print.c in LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0beta7, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.4beta, 4.0.5, 4.0.6, 4.0.7, 4.0.8 and 4.0.9 when using the tiffinfo tool to prin

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

Fix per ecosystem

Each block below is a distro release where CVE-2018-7456 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

tiff→ fixed in4.0.9-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y tiff
```

Debian bookworm

Source: Debian Security Tracker

tiff→ fixed in4.0.9-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y tiff
```

Debian trixie

Source: Debian Security Tracker

tiff→ fixed in4.0.9-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y tiff
```

Alpine v3.20

Source: Alpine secdb

tiff→ fixed in4.0.9-r4
```
apk update && apk add --upgrade tiff
```

Alpine v3.21

Source: Alpine secdb

tiff→ fixed in4.0.9-r4
```
apk update && apk add --upgrade tiff
```

Alpine edge

Source: Alpine secdb

tiff→ fixed in4.0.9-r4
```
apk update && apk add --upgrade tiff
```

Alpine v3.18

Source: Alpine secdb

tiff→ fixed in4.0.9-r4
```
apk update && apk add --upgrade tiff
```

Alpine v3.19

Source: Alpine secdb

tiff→ fixed in4.0.9-r4
```
apk update && apk add --upgrade tiff
```

Are YOU affected by CVE-2018-7456?

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-2018-7456dropped 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)