Strix
26.1K

CVE-2020-15702

HIGHCVSS 7/10EPSS 0.46%

Last modified

CVE-2020-15702 is a high-severity vulnerability rated 7/10 on the CVSS scale. 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. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.46%

36.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CanonicalApport2.20.11-0ubuntu8
CanonicalApport2.20.11-0ubuntu9
CanonicalApport2.20.11-0ubuntu10
CanonicalApport2.20.11-0ubuntu11
CanonicalApport2.20.11-0ubuntu12
CanonicalApport2.20.11-0ubuntu13
CanonicalApport2.20.11-0ubuntu14
CanonicalApport2.20.11-0ubuntu15
CanonicalApport2.20.11-0ubuntu16
CanonicalApport2.20.11-0ubuntu17
CanonicalApport2.20.11-0ubuntu18
CanonicalApport2.20.11-0ubuntu19
CanonicalApport2.20.11-0ubuntu20
CanonicalApport2.20.11-0ubuntu21
CanonicalApport2.20.11-0ubuntu22
CanonicalApport2.20.11-0ubuntu23
CanonicalApport2.20.11-0ubuntu24
CanonicalApport2.20.11-0ubuntu25
CanonicalApport2.20.11-0ubuntu26
CanonicalApport2.20.11-0ubuntu27
CanonicalApport2.20.11-0ubuntu27.2
CanonicalApport2.20.11-0ubuntu27.3
CanonicalApport2.20.11-0ubuntu27.4
CanonicalApport2.20.11-0ubuntu27.5
CanonicalApport2.20.7-0ubuntu3
CanonicalApport2.20.7-0ubuntu3.1
CanonicalApport2.20.7-0ubuntu4
CanonicalApport2.20.8-0ubuntu1
CanonicalApport2.20.8-0ubuntu2
CanonicalApport2.20.8-0ubuntu3
CanonicalApport2.20.8-0ubuntu4
CanonicalApport2.20.8-0ubuntu5
CanonicalApport2.20.8-0ubuntu6
CanonicalApport2.20.8-0ubuntu7
CanonicalApport2.20.8-0ubuntu8
CanonicalApport2.20.8-0ubuntu9
CanonicalApport2.20.8-0ubuntu10
CanonicalApport2.20.9-0ubuntu1
CanonicalApport2.20.9-0ubuntu2
CanonicalApport2.20.9-0ubuntu3
CanonicalApport2.20.9-0ubuntu4
CanonicalApport2.20.9-0ubuntu5
CanonicalApport2.20.9-0ubuntu6
CanonicalApport2.20.9-0ubuntu7
CanonicalApport2.20.9-0ubuntu7.1
CanonicalApport2.20.9-0ubuntu7.2
CanonicalApport2.20.9-0ubuntu7.3
CanonicalApport2.20.9-0ubuntu7.4
CanonicalApport2.20.9-0ubuntu7.5
CanonicalApport2.20.9-0ubuntu7.6

Showing 50 of 101 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-15702?
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.
How severe is CVE-2020-15702?
CVE-2020-15702 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.
How do I fix CVE-2020-15702?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-15702?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST