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.
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).
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