CVE-2020-15702: high-severity vulnerability in Canonical apport
TOCTOU in apport
Published · Updated
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7epss 0.5%
exploitation probability
0.5%top 59% of all CVEs
observed exploitation
nono source reports it
TOCTOU Race Condition vulnerability in apport allows a local attacker to escalate privileges and execute arbitrary code. An attacker may exit the crashed process and exploit PID recycling to spawn a root process with the same PID as the crashed process, which can then be used to escalate privileges. Fixed in 2.20.1-0ubuntu2.24, 2.20.9 versions prior to 2.20.9-0ubuntu7.16 and 2.20.11 versions prior to 2.20.11-0ubuntu27.6. Was ZDI-CAN-11234.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Canonical · apportRelated CVEs — Canonical apport
In the same product, most dangerous first.
CVE-2021-25684HIGHapport can be stalled by reading a FIFOEPSS 0.6%CVE-2021-3710MEDIUMApport info disclosure via path traversal bug in read_fileEPSS 0.5%CVE-2021-3709MEDIUMApport file permission bypass through emacs byte compilation errorsEPSS 0.5%CVE-2021-25682HIGHapport improperly parses /proc/pid/statusEPSS 0.5%CVE-2019-11481LOWApport reads arbitrary files if ~/.config/apport/settings is a symlinkEPSS 0.5%CVE-2021-25683HIGHapport improperly parses /proc/pid/statEPSS 0.4%