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CVE-2021-28700

CVE-2021-28700

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

xen/arm: No memory limit for dom0less domUs The dom0less feature allows an administrator to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit from them is not set. This allow a domain to allocate memory beyond what an administrator originally configured.

CVSS 4.9 · Medium · EPSS 1.9% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • xen

    Versions
    • 4.12.x: Affected

    No fix published

  • xen

    Versions
    • ≥ unspecified, < 4.12: Unknown (custom)
    • ≥ 4.13.x, < unspecified: Affected (custom)
    • ≥ next of xen-unstable, < unspecified: Not affected (custom)

    No fix published

  • xen Debian:12

    Affected ranges
    • ECOSYSTEM: < 4.14.3-1

    Update to 4.14.3-1

  • xen Debian:13

    Affected ranges
    • ECOSYSTEM: < 4.14.3-1

    Update to 4.14.3-1

  • xen Debian:14

    Affected ranges
    • ECOSYSTEM: < 4.14.3-1

    Update to 4.14.3-1

  • xen Ubuntu:16.04:LTS

    Versions
    • 4.5.1-0ubuntu1
    • 4.5.1-0ubuntu2
    • 4.6.0-1ubuntu1
    • 4.6.0-1ubuntu2
    • 4.6.0-1ubuntu4
    • 4.6.0-1ubuntu4.1
    • 4.6.0-1ubuntu4.2
    • 4.6.0-1ubuntu4.3
    • 4.6.5-0ubuntu1
    • 4.6.5-0ubuntu1.1
    • 4.6.5-0ubuntu1.2
    • 4.6.5-0ubuntu1.4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • xen Ubuntu:18.04:LTS

    Versions
    • 4.9.0-0ubuntu3
    • 4.9.0-0ubuntu4
    • 4.9.2-0ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • xen Ubuntu:20.04:LTS

    Versions
    • 4.9.2-0ubuntu2
    • 4.9.2-0ubuntu6
    • 4.9.2-0ubuntu7
    • 4.11.3+24-g14b62ab3e5-1ubuntu1
    • 4.11.3+24-g14b62ab3e5-1ubuntu2
    • 4.11.3+24-g14b62ab3e5-1ubuntu2.2
    • 4.11.3+24-g14b62ab3e5-1ubuntu2.3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • xen Ubuntu:22.04:LTS

    Versions
    • 4.11.4+24-gddaaccbbab-1ubuntu2
    • 4.16.0-1~ubuntu2
    • 4.16.0-1~ubuntu2.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • xen Ubuntu:24.04:LTS

    Versions
    • 4.17.2-1
    • 4.17.2+55-g0b56bed864-1
    • 4.17.2+76-ge1f9cb16e2-1
    • 4.17.2+76-ge1f9cb16e2-1ubuntu1
    • 4.17.3+10-g091466ba55-1
    • 4.17.3+10-g091466ba55-1.1ubuntu2
    • 4.17.3+10-g091466ba55-1.1ubuntu3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • xen Ubuntu:25.10

    Versions
    • 4.20.0-1ubuntu1
    • 4.20.0+68-g35cb38b222-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • xen Ubuntu:26.10

    Versions
    • 4.20.2+7-g1badcf5035-2build2
    • 4.20.2+37-g61ff35323e-1ubuntu1
    • 4.20.3+127-gc42374a105-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • xen Ubuntu:26.04:LTS

    Versions
    • 4.20.0+68-g35cb38b222-1
    • 4.20.2+7-g1badcf5035-2
    • 4.20.2+7-g1badcf5035-2build2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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