Heap Use-After-Free Vulnerability in systemd Affects Multiple Versions
CVE-2020-1712

7.8HIGH

Key Information:

Vendor

[unknown]

Status
Systemd
Vendor
CVE Published:
31 March 2020

What is CVE-2020-1712?

A vulnerability in systemd allows local unprivileged attackers to exploit a heap use-after-free condition while processing asynchronous Polkit queries via dbus messages. By sending specially crafted dbus messages, attackers can potentially crash systemd services or escalate their privileges, enabling them to execute arbitrary code.

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Affected Version(s)

systemd before v245-rc1

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712
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https://www.openwall.com/lists/oss-security/2020/02/05/1
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https://github.com/systemd/systemd/commit/ea0d0ede03c6f18...
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CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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