CVE-2019-15790
Apport reads and writes information on a crashed process to /proc/pid with elevated privileges.
Does this matter?
Lower severity and a low EPSS score (0.52%). Track it; it rarely justifies an emergency change on its own.
Description
Apport reads and writes information on a crashed process to /proc/pid with elevated privileges. Apport then determines which user the crashed process belongs to by reading /proc/pid through get_pid_info() in data/apport. An unprivileged user could exploit this to read information about a privileged running process by exploiting PID recycling. This information could then be used to obtain ASLR offsets for a process with an existing memory corruption vulnerability. The initial fix introduced regressions in the Python Apport library due to a missing argument in Report.add_proc_environ in apport/report.py. It also caused an autopkgtest failure when reading /proc/pid and with Python 2 compatibility by reading /proc maps. The initial and subsequent regression fixes are in 2.20.11-0ubuntu16, 2.20.11-0ubuntu8.6, 2.20.9-0ubuntu7.12, 2.20.1-0ubuntu2.22 and 2.14.1-0ubuntu3.29+esm3.
- CVSS 3.1
- 3.3 LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.52% probability · 43th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-250, CWE-269
- Affected
- apport project/apport · canonical/ubuntu linux
- Source
- security@ubuntu.com
References
- http://packetstormsecurity.com/files/172858/Ubuntu-Apport-Whoopsie-DoS-Integer-Overflow.html
- https://bugs.launchpad.net/apport/+bug/1854237Issue Tracking, Third Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1839795Exploit, Issue Tracking, Third Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1850929Exploit, Issue Tracking, Patch, Third Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1851806Exploit, Issue Tracking, Third Party Advisory
- https://usn.ubuntu.com/4171-1/Third Party Advisory
- https://usn.ubuntu.com/4171-2/Third Party Advisory
- https://usn.ubuntu.com/4171-3/Third Party Advisory
- https://usn.ubuntu.com/4171-4/Third Party Advisory
- https://usn.ubuntu.com/4171-5/Third Party Advisory
- http://packetstormsecurity.com/files/172858/Ubuntu-Apport-Whoopsie-DoS-Integer-Overflow.html
- http://seclists.org/fulldisclosure/2025/Jun/9
- https://bugs.launchpad.net/apport/+bug/1854237Issue Tracking, Third Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1839795Exploit, Issue Tracking, Third Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1850929Exploit, Issue Tracking, Patch, Third Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1851806Exploit, Issue Tracking, Third Party Advisory
- https://usn.ubuntu.com/4171-1/Third Party Advisory
- https://usn.ubuntu.com/4171-2/Third Party Advisory
- https://usn.ubuntu.com/4171-3/Third Party Advisory
- https://usn.ubuntu.com/4171-4/Third Party Advisory
- https://usn.ubuntu.com/4171-5/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.