CVE-2023-48795 · cross-distro fix matrix

CVE-2023-48795: The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connectio

Affects 4 Linux releases across 50 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2023-48795 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

dropbear→ fixed in2020.81-3+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y dropbear
```
erlang→ fixed in1:23.2.6+dfsg-1+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y erlang
```
filezilla→ fixed in3.52.2-3+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y filezilla
```
libssh→ fixed in0.9.8-0+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libssh
```
openssh→ fixed in1:8.4p1-5+deb11u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssh
```
php-phpseclib→ fixed in2.0.30-2+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-phpseclib
```
phpseclib→ fixed in1.0.19-3+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y phpseclib
```
proftpd-dfsg→ fixed in1.3.7a+dfsg-12+deb11u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y proftpd-dfsg
```
putty→ fixed in0.74-1+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y putty
```
python-asyncssh→ fixed in2.5.0-0.1+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y python-asyncssh
```

Debian bookworm

Source: Debian Security Tracker

dropbear→ fixed in2022.83-1+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y dropbear
```
erlang→ fixed in1:25.2.3+dfsg-1+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y erlang
```
filezilla→ fixed in3.63.0-1+deb12u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y filezilla
```
libssh→ fixed in0.10.6-0+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libssh
```
openssh→ fixed in1:9.2p1-2+deb12u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssh
```
php-phpseclib→ fixed in2.0.42-1+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-phpseclib
```
php-phpseclib3→ fixed in3.0.19-1+deb12u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-phpseclib3
```
phpseclib→ fixed in1.0.20-1+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y phpseclib
```
proftpd-dfsg→ fixed in1.3.8+dfsg-4+deb12u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y proftpd-dfsg
```
proftpd-mod-proxy→ fixed in0.9.2-1+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y proftpd-mod-proxy
```
putty→ fixed in0.78-2+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y putty
```
python-asyncssh→ fixed in2.10.1-2+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y python-asyncssh
```

Debian trixie

Source: Debian Security Tracker

dropbear→ fixed in2022.83-4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y dropbear
```
erlang→ fixed in1:25.3.2.8+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y erlang
```
filezilla→ fixed in3.66.4-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y filezilla
```
golang-go.crypto→ fixed in1:0.17.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y golang-go.crypto
```
libssh→ fixed in0.10.6-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libssh
```
libssh2→ fixed in1.11.0-4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libssh2
```
openssh→ fixed in1:9.6p1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssh
```
paramiko→ fixed in3.4.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y paramiko
```
php-phpseclib→ fixed in2.0.46-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-phpseclib
```
php-phpseclib3→ fixed in3.0.35-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y php-phpseclib3
```
phpseclib→ fixed in1.0.22-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y phpseclib
```
proftpd-dfsg→ fixed in1.3.8.b+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y proftpd-dfsg
```
proftpd-mod-proxy→ fixed in0.9.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y proftpd-mod-proxy
```
putty→ fixed in0.80-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y putty
```
python-asyncssh→ fixed in2.15.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y python-asyncssh
```
tinyssh→ fixed in20230101-4urgency: unimportant
```
sudo apt-get install --only-upgrade -y tinyssh
```

Alpine v3.20

Source: Alpine secdb

dropbear→ fixed in2022.83-r4

apk update && apk add --upgrade dropbear

libssh2→ fixed in1.11.0-r1
```
apk update && apk add --upgrade libssh2
```
openssh→ fixed in9.6_p1-r0
```
apk update && apk add --upgrade openssh
```
buildah→ fixed in1.34.0-r1
```
apk update && apk add --upgrade buildah
```
doctl→ fixed in1.102.0-r0
```
apk update && apk add --upgrade doctl
```
erlang→ fixed in26.2.1-r0
```
apk update && apk add --upgrade erlang
```

filezilla→ fixed in3.66.4-r0

apk update && apk add --upgrade filezilla

gitea→ fixed in1.21.3-r0
```
apk update && apk add --upgrade gitea
```
k3s→ fixed in1.29.3.1-r0
```
apk update && apk add --upgrade k3s
```
libssh→ fixed in0.10.6-r0
```
apk update && apk add --upgrade libssh
```
nebula→ fixed in1.8.1-r0
```
apk update && apk add --upgrade nebula
```
pijul→ fixed in1.0.0_beta8-r1
```
apk update && apk add --upgrade pijul
```

Are YOU affected by CVE-2023-48795?

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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