Packages
- sed - GNU stream editor for filtering/transforming text
Details
USN-8229-1 fixed a vulnerability in sed. This update provides the
corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.
Original advisory details:
Michał Majchrowicz and Marcin Wyczechowski discovered that sed
incorrectly handled symbolic links when performing in-place edits.
A local attacker could possibly use this issue to overwrite
arbitrary files.
USN-8229-1 fixed a vulnerability in sed. This update provides the
corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.
Original advisory details:
Michał Majchrowicz and Marcin Wyczechowski discovered that sed
incorrectly handled symbolic links when performing in-place edits.
A local attacker could possibly use this issue to overwrite
arbitrary files.
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 | sed – 4.7-1ubuntu0.1~esm1 | ||
| 18.04 LTS bionic | sed – 4.4-2ubuntu0.1~esm1 | ||
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