CVE-2020-15702CWE-367

TOCTOU in apport

High · published August 6, 2020

CVSS v3.1
7.0
EPSS
0%
Percentile
41.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.0 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00498 · 41.8th percentile
Weakness
CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition
Published
2020-08-06T22:50Z
EPSS history
Timeline
  • 06 AUG 22:50Z
    TOCTOU in apport
    cvelistv5