CVE-2025-52565

HIGH7.5EPSS 0.03%

Container escape with malicious config due to /dev/console mount and related races in github.com/opencontainers/runc

發布日:2025/11/5修改日:2026/4/28

描述

runc is a CLI tool for spawning and running containers according to the OCI specification. Versions 1.0.0-rc3 through 1.2.7, 1.3.0-rc.1 through 1.3.2, and 1.4.0-rc.1 through 1.4.0-rc.2, due to insufficient checks when bind-mounting `/dev/pts/$n` to `/dev/console` inside the container, an attacker can trick runc into bind-mounting paths which would normally be made read-only or be masked onto a path that the attacker can write to. This attack is very similar in concept and application to CVE-2025-31133, except that it attacks a similar vulnerability in a different target (namely, the bind-mount of `/dev/pts/$n` to `/dev/console` as configured for all containers that allocate a console). This happens after `pivot_root(2)`, so this cannot be used to write to host files directly -- however, as with CVE-2025-31133, this can load to denial of service of the host or a container breakout by providing the attacker with a writable copy of `/proc/sysrq-trigger` or `/proc/sys/kernel/core_pattern` (respectively). This issue is fixed in versions 1.2.8, 1.3.3 and 1.4.0-rc.3.

受影響套件(3)

Debian/runcfrom 0
Go/github.com/opencontainers/runc>= 1.0.0-rc3, < 1.2.8
Go/github.com/opencontainers/runc>= 1.0.0-rc3, < 1.2.8, >= 1.3.0-rc.1, < 1.3.3, >= 1.4.0-rc.1, < 1.4.0-rc.3

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 4.0	—	CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
osv	CVSS 3.1	HIGH7.5	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

描述

受影響套件(3)

CVSS 分數

參考連結(12)