CVEvulnerability

CVE-2020-15702

7.0 HIGH Published 2020-08-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-08-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
4.4 MEDIUM — AV:L/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-367

Description

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.

Affected configurations

• canonical apport 2.20.11-0ubuntu8 • canonical apport 2.20.11-0ubuntu9 • canonical apport 2.20.11-0ubuntu10 • canonical apport 2.20.11-0ubuntu11 • canonical apport 2.20.11-0ubuntu12 • canonical apport 2.20.11-0ubuntu13 • canonical apport 2.20.11-0ubuntu14 • canonical apport 2.20.11-0ubuntu15 • canonical apport 2.20.11-0ubuntu16 • canonical apport 2.20.11-0ubuntu17 • canonical apport 2.20.11-0ubuntu18 • canonical apport 2.20.11-0ubuntu19 • canonical apport 2.20.11-0ubuntu20 • canonical apport 2.20.11-0ubuntu21 • canonical apport 2.20.11-0ubuntu22 • canonical apport 2.20.11-0ubuntu23 • canonical apport 2.20.11-0ubuntu24 • canonical apport 2.20.11-0ubuntu25 • canonical apport 2.20.11-0ubuntu26 • canonical apport 2.20.11-0ubuntu27 • canonical apport 2.20.11-0ubuntu27.2 • canonical apport 2.20.11-0ubuntu27.3 • canonical apport 2.20.11-0ubuntu27.4 • canonical apport 2.20.11-0ubuntu27.5 • canonical apport 2.20.7-0ubuntu3 • canonical apport 2.20.7-0ubuntu3.1 • canonical apport 2.20.7-0ubuntu4 • canonical apport 2.20.8-0ubuntu1 • canonical apport 2.20.8-0ubuntu2 • canonical apport 2.20.8-0ubuntu3 • canonical apport 2.20.8-0ubuntu4 • canonical apport 2.20.8-0ubuntu5 • canonical apport 2.20.8-0ubuntu6 • canonical apport 2.20.8-0ubuntu7 • canonical apport 2.20.8-0ubuntu8 • canonical apport 2.20.8-0ubuntu9 • canonical apport 2.20.8-0ubuntu10 • canonical apport 2.20.9-0ubuntu1 • canonical apport 2.20.9-0ubuntu2 • canonical apport 2.20.9-0ubuntu3 • canonical apport 2.20.9-0ubuntu4 • canonical apport 2.20.9-0ubuntu5 • canonical apport 2.20.9-0ubuntu6 • canonical apport 2.20.9-0ubuntu7 • canonical apport 2.20.9-0ubuntu7.1 • canonical apport 2.20.9-0ubuntu7.2 • canonical apport 2.20.9-0ubuntu7.3 • canonical apport 2.20.9-0ubuntu7.4 • canonical apport 2.20.9-0ubuntu7.5 • canonical apport 2.20.9-0ubuntu7.6 • canonical apport 2.20.9-0ubuntu7.7 • canonical apport 2.20.9-0ubuntu7.8 • canonical apport 2.20.9-0ubuntu7.9 • canonical apport 2.20.9-0ubuntu7.10 • canonical apport 2.20.9-0ubuntu7.11 • canonical apport 2.20.9-0ubuntu7.12 • canonical apport 2.20.9-0ubuntu7.13 • canonical apport 2.20.9-0ubuntu7.14 • canonical apport 2.20.9-0ubuntu7.15 • canonical apport 2.19.1-0ubuntu3 … and 41 more

Related

Weakness · CWE (1)

  • CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition weakness

References