Packages
- libcap2 - POSIX 1003.1e capabilities library
Details
USN-8193-1 fixed a vulnerability in libcap. This update provides the
corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS,
Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS.
Original advisory details:
Ali Raza discovered that libcap incorrectly handled file capability
updates. A local attacker could possibly use this issue to inject or strip
capabilities into arbitrary executables and escalate privileges.
USN-8193-1 fixed a vulnerability in libcap. This update provides the
corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS,
Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS.
Original advisory details:
Ali Raza discovered that libcap incorrectly handled file capability
updates. A local attacker could possibly use this issue to inject or strip
capabilities into arbitrary executables and escalate privileges.
Update instructions
In general, a standard system update will 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 | ||
|---|---|---|---|
| 20.04 LTS focal | libcap-dev – 1:2.32-1ubuntu0.2+esm1 | ||
| libcap2 – 1:2.32-1ubuntu0.2+esm1 | |||
| libcap2-bin – 1:2.32-1ubuntu0.2+esm1 | |||
| libpam-cap – 1:2.32-1ubuntu0.2+esm1 | |||
| 18.04 LTS bionic | libcap-dev – 1:2.25-1.2ubuntu0.1~esm2 | ||
| libcap2 – 1:2.25-1.2ubuntu0.1~esm2 | |||
| libcap2-bin – 1:2.25-1.2ubuntu0.1~esm2 | |||
| libpam-cap – 1:2.25-1.2ubuntu0.1~esm2 | |||
| 16.04 LTS xenial | libcap-dev – 1:2.24-12ubuntu0.1~esm2 | ||
| libcap2 – 1:2.24-12ubuntu0.1~esm2 | |||
| libcap2-bin – 1:2.24-12ubuntu0.1~esm2 | |||
| libpam-cap – 1:2.24-12ubuntu0.1~esm2 | |||
| 14.04 LTS trusty | libcap-dev – 1:2.24-0ubuntu2+esm2 | ||
| libcap2 – 1:2.24-0ubuntu2+esm2 | |||
| libcap2-bin – 1:2.24-0ubuntu2+esm2 | |||
| libpam-cap – 1:2.24-0ubuntu2+esm2 | |||
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