{"id":"ALPINE-CVE-2025-52565","details":"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.","modified":"2026-11-03T06:32:16.127372535Z","published":"2025-11-06T20:15:49.240Z","upstream":["CVE-2025-52565"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2025-52565"}],"affected":[{"package":{"name":"runc","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/runc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.1"},{"fixed":"1.3.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-52565.json"}},{"package":{"name":"runc","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/runc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.1"},{"fixed":"1.3.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-52565.json"}},{"package":{"name":"runc","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/runc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.1"},{"fixed":"1.3.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2025-52565.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H"}]}