CVE-2023-29197 · cross-distro fix matrix

CVE-2023-29197: guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Affected versions are subject to improper header parsing. An attacker could sneak in a newline (\n) into both the header names and values. While the specification states that \r\n\r\n is used to terminate the header list, many se

Affects 3 Linux releases across 6 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2023-29197 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

php-guzzlehttp-psr7→ fixed in1.7.0-1+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-guzzlehttp-psr7
```
php-nyholm-psr7→ fixed in1.3.2-2+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-nyholm-psr7
```

Debian bookworm

Source: Debian Security Tracker

php-guzzlehttp-psr7→ fixed in2.4.5-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-guzzlehttp-psr7
```
php-nyholm-psr7→ fixed in1.5.1-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-nyholm-psr7
```

Debian trixie

Source: Debian Security Tracker

php-guzzlehttp-psr7→ fixed in2.4.5-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-guzzlehttp-psr7
```
php-nyholm-psr7→ fixed in1.5.1-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-nyholm-psr7
```

Are YOU affected by CVE-2023-29197?

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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