{"id":"AZL-69821","summary":"CVE-2025-52565 affecting package moby-runc for versions less than 1.2.8-1","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":"2026-04-01T05:21:37.856611Z","published":"2025-11-06T20:15:49Z","upstream":["CVE-2025-52565"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-52565"}],"affected":[{"package":{"name":"moby-runc","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/moby-runc"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.8-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-69821.json"}}],"schema_version":"1.7.5"}