Summary
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)
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 16.04 LTS 16.04:LTS | apport | 2.20.1-0ubuntu2.30 |
| Ubuntu · 18.04 LTS 18.04:LTS | apport | 2.20.9-0ubuntu7.23 |
| Ubuntu · 20.04 LTS 20.04:LTS | apport | 2.20.11-0ubuntu27.16 |
Vulnerabilities 3
-
High 8.8
apport improperly parses /proc/pid/status
It was discovered that the get_pid_info() function in data/apport did not properly parse the /proc/pid/status file from the kernel.
-
High 8.8
apport improperly parses /proc/pid/stat
It was discovered that the get_starttime() function in data/apport did not properly parse the /proc/pid/stat file from the kernel.
-
High 8.8
apport can be stalled by reading a FIFO
It was discovered that apport in data/apport did not properly open a report file to prevent hanging reads on a FIFO.