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CVE-2019-3843

CVE-2019-3843

This page contains facts from public vulnerability sources. Check the original advisory before updating.

It was discovered that a systemd service that uses DynamicUser property can create a SUID/SGID binary that would be allowed to run as the transient service UID/GID even after the service is terminated. A local attacker may use this flaw to access resources that will be owned by a potentially different service in the future, when the UID/GID will be recycled.

CVSS 4.5 · Medium · EPSS 0.9% · Public exploit · Fix available

Published
Updated

Stack: system

Affected products and versions

  • systemd

    Versions
    • 242: Affected

    No fix published

  • systemd Debian:12

    Affected ranges
    • ECOSYSTEM: < 242-4

    Update to 242-4

  • systemd Debian:13

    Affected ranges
    • ECOSYSTEM: < 242-4

    Update to 242-4

  • systemd Debian:14

    Affected ranges
    • ECOSYSTEM: < 242-4

    Update to 242-4

  • systemd Ubuntu:18.04:LTS

    Versions
    • 234-2ubuntu12
    • 235-2ubuntu3
    • 235-3ubuntu2
    • 235-3ubuntu3
    • 237-3ubuntu3
    • 237-3ubuntu4
    • 237-3ubuntu6
    • 237-3ubuntu7
    • 237-3ubuntu8
    • 237-3ubuntu10
    • 237-3ubuntu10.2
    • 237-3ubuntu10.3
    • 237-3ubuntu10.4
    • 237-3ubuntu10.6
    • 237-3ubuntu10.9
    • 237-3ubuntu10.11
    • 237-3ubuntu10.12
    • 237-3ubuntu10.13
    • 237-3ubuntu10.15
    • 237-3ubuntu10.17
    • 237-3ubuntu10.19
    • 237-3ubuntu10.20
    • 237-3ubuntu10.21
    • 237-3ubuntu10.22
    • 237-3ubuntu10.23
    • 237-3ubuntu10.24
    • 237-3ubuntu10.25
    • 237-3ubuntu10.26
    • 237-3ubuntu10.28
    • 237-3ubuntu10.29
    • 237-3ubuntu10.31
    • 237-3ubuntu10.33
    Affected ranges
    • ECOSYSTEM: < 237-3ubuntu10.38

    Update to 237-3ubuntu10.38

Original sources

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