Ubuntu USN · USN-8430-1

ADSys vulnerabilities

Published: Mon, 15 Jun 2026 16:19

CVE-2026-33814CVE-2026-27141

Summary

Several security issues were fixed in ADSys.

Details

It was discovered that ADSys did not properly handle certain HTTP/2 frames. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-27141) It was discovered that ADSys did not properly handle certain HTTP/2 SETTINGS frames. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2026-33814)

Recommended actions per Ubuntu release

StackPatch playbook auto-generated per release codename and per affected package.

Ubuntu focal

adsys→0.9.2~20.04.2ubuntu0.1+esm2apt_upgrade
Standard apt upgrade. Install 0.9.2~20.04.2ubuntu0.1+esm2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
adsys→0.9.2~20.04.2ubuntu0.1+esm2apt_upgrade
Standard apt upgrade. Install 0.9.2~20.04.2ubuntu0.1+esm2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
adsys-windows→0.9.2~20.04.2ubuntu0.1+esm2apt_upgrade
Standard apt upgrade. Install 0.9.2~20.04.2ubuntu0.1+esm2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys-windows
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu jammy

adsys→0.16.3~22.04.2ubuntu0.22.04.1apt_upgrade
Standard apt upgrade. Install 0.16.3~22.04.2ubuntu0.22.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
adsys→0.16.3~22.04.2ubuntu0.22.04.1apt_upgrade
Standard apt upgrade. Install 0.16.3~22.04.2ubuntu0.22.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
adsys-windows→0.16.3~22.04.2ubuntu0.22.04.1apt_upgrade
Standard apt upgrade. Install 0.16.3~22.04.2ubuntu0.22.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys-windows
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu noble

adsys→0.16.3~24.04.2ubuntu0.24.04.1apt_upgrade
Standard apt upgrade. Install 0.16.3~24.04.2ubuntu0.24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
adsys→0.16.3~24.04.2ubuntu0.24.04.1apt_upgrade
Standard apt upgrade. Install 0.16.3~24.04.2ubuntu0.24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
adsys-windows→0.16.3~24.04.2ubuntu0.24.04.1apt_upgrade
Standard apt upgrade. Install 0.16.3~24.04.2ubuntu0.24.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys-windows
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu questing

adsys→0.16.3ubuntu0.25.10.2apt_upgrade
Standard apt upgrade. Install 0.16.3ubuntu0.25.10.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
adsys→0.16.3ubuntu0.25.10.2apt_upgrade
Standard apt upgrade. Install 0.16.3ubuntu0.25.10.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
adsys-windows→0.16.3ubuntu0.25.10.2apt_upgrade
Standard apt upgrade. Install 0.16.3ubuntu0.25.10.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys-windows
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu resolute

adsys→0.16.4ubuntu1.1apt_upgrade
Standard apt upgrade. Install 0.16.4ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
adsys→0.16.4ubuntu1.1apt_upgrade
Standard apt upgrade. Install 0.16.4ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
adsys-windows→0.16.4ubuntu1.1apt_upgrade
Standard apt upgrade. Install 0.16.4ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y adsys-windows
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

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