CVE-2025-52565: falha de alta gravidade em opencontainers runc
container escape due to /dev/console mount and related races
Publicada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.4epss 0.8%
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H
Produtos afetados
opencontainers · runcCVEs relacionadas — opencontainers runc
No mesmo produto, das mais perigosas para as menos.
CVE-2024-21626HIGHrunc container breakout through process.cwd trickery and leaked fdsEPSS 18.9%CVE-2021-43784MEDIUMOverflow in netlink bytemsg length field allows attacker to override netlink-based container configurationEPSS 1.8%CVE-2025-31133HIGHrunc container escape via "masked path" abuse due to mount race conditionsEPSS 1.2%CVE-2025-52881HIGHrunc: LSM labels can be bypassed with malicious config using dummy procfs filesEPSS 0.8%CVE-2022-29162MEDIUMIncorrect Default Permissions in runcEPSS 0.4%CVE-2023-28642MEDIUMAppArmor bypass with symlinked /proc in runcEPSS 0.3%
Referências
https://github.com/opencontainers/runc/commit/01de9d65dc72f67b256ef03f9bfb795a2bf143b4https://github.com/opencontainers/runc/commit/398955bccb7f20565c224a3064d331c19e422398https://github.com/opencontainers/runc/commit/531ef794e4ecd628006a865ad334a048ee2b4b2ehttps://github.com/opencontainers/runc/commit/9be1dbf4ac67d9840a043ebd2df5c68f36705d1dhttps://github.com/opencontainers/runc/commit/aee7d3fe355dd02939d44155e308ea0052e0d53ahttps://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64https://github.com/opencontainers/runc/commit/de87203e625cd7a27141fb5f2ad00a320c69c5e8https://github.com/opencontainers/runc/commit/ff94f9991bd32076c871ef0ad8bc1b763458e480https://github.com/opencontainers/runc/security/advisories/GHSA-qw9x-cqr3-wc7r