CVE-2023-5981 · cross-distro fix matrix

CVE-2023-5981: A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding.

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

Fix per ecosystem

Each block below is a distro release where CVE-2023-5981 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

gnutls28→ fixed in3.7.1-5+deb11u4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gnutls28
```

Debian bookworm

Source: Debian Security Tracker

gnutls28→ fixed in3.7.9-2+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gnutls28
```

Debian trixie

Source: Debian Security Tracker

gnutls28→ fixed in3.8.2-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y gnutls28
```

Alpine v3.20

Source: Alpine secdb

gnutls→ fixed in3.8.3-r0
```
apk update && apk add --upgrade gnutls
```

Alpine v3.21

Source: Alpine secdb

gnutls→ fixed in3.8.3-r0
```
apk update && apk add --upgrade gnutls
```

Alpine edge

Source: Alpine secdb

gnutls→ fixed in3.8.3-r0
```
apk update && apk add --upgrade gnutls
```

Alpine v3.18

Source: Alpine secdb

gnutls→ fixed in3.8.3-r0
```
apk update && apk add --upgrade gnutls
```

Alpine v3.19

Source: Alpine secdb

gnutls→ fixed in3.8.3-r0
```
apk update && apk add --upgrade gnutls
```

Are YOU affected by CVE-2023-5981?

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

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