[USN-4720-2] Apport vulnerabilities
Leonidas S. Barbosa
leo.barbosa at canonical.com
Wed Feb 3 13:44:20 UTC 2021
Ubuntu Security Notice USN-4720-2
February 03, 2021
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 ESM
Several security issues were fixed in Apport.
- apport: automatically generate crash reports for debugging
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)
The problem can be corrected by updating your system to the following
Ubuntu 14.04 ESM:
In general, a standard system update will make all the necessary changes.
CVE-2021-25682, CVE-2021-25683, CVE-2021-25684
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