CVE-2024-21626

runc container breakout through process.cwd trickery and leaked fds

runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc 1.1.11 and earlier, due to an internal file descriptor leak, an attacker could cause a newly-spawned container process (from runc exec) to have a working directory in the host filesystem namespace, allowing for a container escape by giving access to the host filesystem ("attack 2"). The same attack could be used by a malicious image to allow a container process to gain access to the host filesystem through runc run ("attack 1"). Variants of attacks 1 and 2 could be also be used to overwrite semi-arbitrary host binaries, allowing for complete container escapes ("attack 3a" and "attack 3b"). runc 1.1.12 includes patches for this issue.

Bản gốc tiếng Anh — hệ thống đang dịch tự động, tải lại trang sau ít phút.

CNA cấp mã

GitHub_M

Ngày công bố

01/02/2024

Cập nhật

17/09/2026

CVSS (NVD)

8.6 · HIGH

Loại lỗi (CWE)

CWE-403 · CWE-668

EPSS (FIRST)

18.92% khả năng bị khai thác trong 30 ngày