Packages
- lxc - Linux Containers userspace tools
Details
Maher Azzouzi discovered that LXC did not correctly handle logging
certain failure messages. An attacker could possibly use this issue
to leak sensitive information. This issue only affected
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS,
Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2022-47952)
Sam Sanoop discovered that LXC did not correctly handle certain forms
of user authorization. An attacker could possibly use this issue to
cause a denial of service. (CVE-2026-39402)
Maher Azzouzi discovered that LXC did not correctly handle logging
certain failure messages. An attacker could possibly use this issue
to leak sensitive information. This issue only affected
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS,
Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2022-47952)
Sam Sanoop discovered that LXC did not correctly handle certain forms
of user authorization. An attacker could possibly use this issue to
cause a denial of service. (CVE-2026-39402)
Update instructions
After a standard system update you need to restart LXC containers to make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 26.04 LTS resolute | liblxc-common – 1:6.0.6-1ubuntu1+esm1 | ||
| liblxc1t64 – 1:6.0.6-1ubuntu1+esm1 | |||
| libpam-cgfs – 1:6.0.6-1ubuntu1+esm1 | |||
| lxc – 1:6.0.6-1ubuntu1+esm1 | |||
| lxc-dev – 1:6.0.6-1ubuntu1+esm1 | |||
| lxc-tests – 1:6.0.6-1ubuntu1+esm1 | |||
| 24.04 LTS noble | liblxc-common – 1:5.0.3-2ubuntu7.3+esm1 | ||
| liblxc-dev – 1:5.0.3-2ubuntu7.3+esm1 | |||
| liblxc1t64 – 1:5.0.3-2ubuntu7.3+esm1 | |||
| libpam-cgfs – 1:5.0.3-2ubuntu7.3+esm1 | |||
| lxc – 1:5.0.3-2ubuntu7.3+esm1 | |||
| lxc-dev – 1:5.0.3-2ubuntu7.3+esm1 | |||
| lxc-tests – 1:5.0.3-2ubuntu7.3+esm1 | |||
| lxc-utils – 1:5.0.3-2ubuntu7.3+esm1 | |||
| lxc1 – 1:5.0.3-2ubuntu7.3+esm1 | |||
| 22.04 LTS jammy | liblxc-common – 1:5.0.0~git2209-g5a7b9ce67-0ubuntu1.1+esm1 | ||
| liblxc-dev – 1:5.0.0~git2209-g5a7b9ce67-0ubuntu1.1+esm1 | |||
| liblxc1 – 1:5.0.0~git2209-g5a7b9ce67-0ubuntu1.1+esm1 | |||
| libpam-cgfs – 1:5.0.0~git2209-g5a7b9ce67-0ubuntu1.1+esm1 | |||
| lxc – 1:5.0.0~git2209-g5a7b9ce67-0ubuntu1.1+esm1 | |||
| lxc-dev – 1:5.0.0~git2209-g5a7b9ce67-0ubuntu1.1+esm1 | |||
| lxc-utils – 1:5.0.0~git2209-g5a7b9ce67-0ubuntu1.1+esm1 | |||
| lxc1 – 1:5.0.0~git2209-g5a7b9ce67-0ubuntu1.1+esm1 | |||
| 20.04 LTS focal | liblxc-common – 1:4.0.12-0ubuntu1~20.04.1+esm1 | ||
| liblxc-dev – 1:4.0.12-0ubuntu1~20.04.1+esm1 | |||
| liblxc1 – 1:4.0.12-0ubuntu1~20.04.1+esm1 | |||
| libpam-cgfs – 1:4.0.12-0ubuntu1~20.04.1+esm1 | |||
| lxc – 1:4.0.12-0ubuntu1~20.04.1+esm1 | |||
| lxc-dev – 1:4.0.12-0ubuntu1~20.04.1+esm1 | |||
| lxc-utils – 1:4.0.12-0ubuntu1~20.04.1+esm1 | |||
| lxc1 – 1:4.0.12-0ubuntu1~20.04.1+esm1 | |||
| 18.04 LTS bionic | liblxc-common – 3.0.3-0ubuntu1~18.04.3+esm1 | ||
| liblxc-dev – 3.0.3-0ubuntu1~18.04.3+esm1 | |||
| liblxc1 – 3.0.3-0ubuntu1~18.04.3+esm1 | |||
| libpam-cgfs – 3.0.3-0ubuntu1~18.04.3+esm1 | |||
| lxc – 3.0.3-0ubuntu1~18.04.3+esm1 | |||
| lxc-dev – 3.0.3-0ubuntu1~18.04.3+esm1 | |||
| lxc-utils – 3.0.3-0ubuntu1~18.04.3+esm1 | |||
| lxc1 – 3.0.3-0ubuntu1~18.04.3+esm1 | |||
| 16.04 LTS xenial | liblxc1 – 2.0.11-0ubuntu1~16.04.3+esm1 | ||
| lua-lxc – 2.0.11-0ubuntu1~16.04.3+esm1 | |||
| lxc – 2.0.11-0ubuntu1~16.04.3+esm1 | |||
| lxc-common – 2.0.11-0ubuntu1~16.04.3+esm1 | |||
| lxc-dev – 2.0.11-0ubuntu1~16.04.3+esm1 | |||
| lxc-templates – 2.0.11-0ubuntu1~16.04.3+esm1 | |||
| lxc-tests – 2.0.11-0ubuntu1~16.04.3+esm1 | |||
| lxc1 – 2.0.11-0ubuntu1~16.04.3+esm1 | |||
| python3-lxc – 2.0.11-0ubuntu1~16.04.3+esm1 | |||
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