CVE-2019-5736
HIGH8.6EPSS 59.2%Published: 2/11/2019Modified: 4/28/2026
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.
Affected packages (3)
- Alpine/lxcfrom 0, < 3.1.0-r1
- Debian/lxcfrom 0, < 1:3.1.0+really3.0.3-4
- Debian/runcfrom 0, < 1.0.0~rc6+dfsg1-2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.6 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |