CVE-2017-7526 · cross-distro fix matrix

CVE-2017-7526: libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel

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

Fix per ecosystem

Each block below is a distro release where CVE-2017-7526 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

gnupg1→ fixed in1.4.22-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gnupg1
```
libgcrypt20→ fixed in1.7.8-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libgcrypt20
```

Debian bookworm

Source: Debian Security Tracker

gnupg1→ fixed in1.4.22-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gnupg1
```
libgcrypt20→ fixed in1.7.8-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libgcrypt20
```

Debian trixie

Source: Debian Security Tracker

gnupg1→ fixed in1.4.22-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gnupg1
```
libgcrypt20→ fixed in1.7.8-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libgcrypt20
```

Are YOU affected by CVE-2017-7526?

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-2017-7526dropped 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)