HIGH

CVE-2019-5736

CVSS v3

8.6

HIGH

EPSS Score

55.3%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc binary (and consequently obtain host root access) by leveraging the ability to execute a command as root within one of these types of containers: (1) a new container with an attacker-controlled image, or (2) an existing container, to which the attacker previously had write access, that can be attached with docker exec. This occurs because of file-descriptor mishandling, related to /proc/self/exe.

Technical details

Published
2/11/2019

Frequently asked questions

What is CVE-2019-5736?

runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc binary (and consequently obtain host root access) by leveraging the ability to execute a command as root within one of these types of containers: (1) a new container with an attacker-controlled image, or (2) an existing container, to which the attacker previously had write access, that can be attached with docker exec. This occurs because of file-descriptor mishandling, related to /proc/self/exe.

Is CVE-2019-5736 actively exploited?

Active exploitation of CVE-2019-5736 has not been confirmed. The EPSS score is 55.3%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-5736?

CVE-2019-5736 has a CVSS v3 base score of 8.6 (HIGH severity).

Is CVE-2019-5736 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.