CVE-2025-4598
systemd - security update
描述
A vulnerability was found in systemd-coredump. This flaw allows an attacker to force a SUID process to crash and replace it with a non-SUID binary to access the original's privileged process coredump, allowing the attacker to read sensitive data, such as /etc/shadow content, loaded by the original process. A SUID binary or process has a special type of permission, which allows the process to run with the file owner's permissions, regardless of the user executing the binary. This allows the process to access more restricted data than unprivileged users or processes would be able to. An attacker can leverage this flaw by forcing a SUID process to crash and force the Linux kernel to recycle the process PID before systemd-coredump can analyze the /proc/pid/auxv file. If the attacker wins the race condition, they gain access to the original's SUID process coredump file. They can read sensitive content loaded into memory by the original binary, affecting data confidentiality.
如何修補 CVE-2025-4598
要修補 CVE-2025-4598,請將受影響套件升級到下列已修補版本。
- —升級至 247.3-7+deb11u7 或更新版本
- —升級至 247.3-7+deb11u7 或更新版本
- —升級至 252.38-1~deb12u1 或更新版本
CVE-2025-4598 正在被利用嗎?
低 — EPSS 為 0.6%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 247.3-7+deb11u7
- from 0, < 247.3-7+deb11u7
- from 0, < 252.38-1~deb12u1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |