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CVE-2020-1712

Quick assessment

Affected
[UNKNOWN] systemd
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

systemd是德国Lennart Poettering软件开发者的一款基于Linux的系统和服务管理器。该产品兼容了SysV和LSB的启动脚本，且提供了一个用来表示系统服务间依赖关系的框架。 systemd v245-rc1之前版本中存在资源管理错误漏洞。攻击者可借助特制的dbus消息利用该漏洞造成systemd服务崩溃或可能执行代码及提升权限。

CVSS 7.8 · High EPSS 0.46% · P37
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I. Basic Information for CVE-2020-1712

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
systemd 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
systemd是德国Lennart Poettering软件开发者的一款基于Linux的系统和服务管理器。该产品兼容了SysV和LSB的启动脚本，且提供了一个用来表示系统服务间依赖关系的框架。 systemd v245-rc1之前版本中存在资源管理错误漏洞。攻击者可借助特制的dbus消息利用该漏洞造成systemd服务崩溃或可能执行代码及提升权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
[UNKNOWN] systemd before v245-rc1 -

II. Public POCs for CVE-2020-1712

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III. Intelligence Information for CVE-2020-1712

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Patches & Fixes for CVE-2020-1712 (4)

Vendor Advisories for CVE-2020-1712 (1)

Mailing List Discussions for CVE-2020-1712 (1)

Same Patch Batch · [UNKNOWN] · 2020-03-31 · 3 CVEs total

CVE-2019-10180 2.4 LOW pki-core 跨站脚本漏洞
CVE-2019-14880 Moodle 授权问题漏洞

IV. Related Vulnerabilities

Same product: systemd
Same vendor: [UNKNOWN]
Same weakness: CWE-416

V. Comments for CVE-2020-1712

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