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[email protected]CVE-2020-1712

HistoryMar 31, 2020 - 5:15 p.m.

CVE-2020-1712

2020-03-3117:15:26

CWE-416

[email protected]

web.nvd.nist.gov

212

cve-2020-1712

systemd

vulnerability

heap use-after-free

dbus

polkit

nvd

4.6 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.6 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

22.0%

JSON

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.

Affected configurations

Vulners

NVD

Node

redhatredhat_package_manager

CPENameOperatorVersion
systemd_project:systemdsystemd project systemdle244

CPE	Name	Operator	Version
systemd_project:systemd	systemd project systemd	le	244

CNA Affected

[
  {
    "product": "systemd",
    "vendor": "[UNKNOWN]",
    "versions": [
      {
        "status": "affected",
        "version": "before v245-rc1"
      }
    ]
  }
]