Packages
- inetutils - Collection of common network programs
Details
USN-7992-1 fixed vulnerabilities in telnetd in Inetutils. This update
provides the corresponding update for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS,
and Ubuntu 20.04 LTS.
Original advisory details:
Kyu Neushwaistein discovered that telnetd in Inetutils incorrectly handled
certain environment variables. A remote attacker could use this issue to
bypass authentication and open a session as an administrator.
USN-7992-1 fixed vulnerabilities in telnetd in Inetutils. This update
provides the corresponding update for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS,
and Ubuntu 20.04 LTS.
Original advisory details:
Kyu Neushwaistein discovered that telnetd in Inetutils incorrectly handled
certain environment variables. A remote attacker could use this issue to
bypass authentication and open a session as an administrator.
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 | inetutils-telnetd – 2:1.9.4-11ubuntu0.2+esm3 | ||
| 18.04 LTS bionic | inetutils-telnetd – 2:1.9.4-3ubuntu0.1+esm4 | ||
| 16.04 LTS xenial | inetutils-telnetd – 2:1.9.4-1ubuntu0.1~esm5 | ||
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