USN-4720-2: Apport vulnerabilities

3 February 2021

Several security issues were fixed in Apport.

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Releases

Packages

  • apport - automatically generate crash reports for debugging

Details

USN-4720-1 fixed several vulnerabilities in Apport. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

Itai Greenhut discovered that Apport incorrectly parsed certain files in
the /proc filesystem. A local attacker could use this issue to escalate
privileges and run arbitrary code. (CVE-2021-25682, CVE-2021-25683)

Itai Greenhut discovered that Apport incorrectly handled opening certain
special files. A local attacker could possibly use this issue to cause
Apport to hang, resulting in a denial of service. (CVE-2021-25684)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.04

In general, a standard system update will make all the necessary changes.

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