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CVE-2020-13776

CVE-2020-13776

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

systemd through v245 mishandles numerical usernames such as ones composed of decimal digits or 0x followed by hex digits, as demonstrated by use of root privileges when privileges of the 0x0 user account were intended. NOTE: this issue exists because of an incomplete fix for CVE-2017-1000082.

CVSS 6.7 · Medium · EPSS 0.5% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • systemd Debian:12

    Affected ranges
    • ECOSYSTEM: < 246-2

    Update to 246-2

  • systemd Debian:13

    Affected ranges
    • ECOSYSTEM: < 246-2

    Update to 246-2

  • systemd Debian:14

    Affected ranges
    • ECOSYSTEM: < 246-2

    Update to 246-2

  • systemd Ubuntu:Pro:14.04:LTS

    Versions
    • 204-0ubuntu18
    • 204-0ubuntu19
    • 204-5ubuntu3
    • 204-5ubuntu5
    • 204-5ubuntu6
    • 204-5ubuntu7
    • 204-5ubuntu8
    • 204-5ubuntu9
    • 204-5ubuntu10
    • 204-5ubuntu11
    • 204-5ubuntu13
    • 204-5ubuntu14
    • 204-5ubuntu15
    • 204-5ubuntu16
    • 204-5ubuntu17
    • 204-5ubuntu18
    • 204-5ubuntu19
    • 204-5ubuntu20
    • 204-5ubuntu20.2
    • 204-5ubuntu20.3
    • 204-5ubuntu20.4
    • 204-5ubuntu20.5
    • 204-5ubuntu20.6
    • 204-5ubuntu20.7
    • 204-5ubuntu20.8
    • 204-5ubuntu20.9
    • 204-5ubuntu20.10
    • 204-5ubuntu20.11
    • 204-5ubuntu20.12
    • 204-5ubuntu20.13
    • 204-5ubuntu20.14
    • 204-5ubuntu20.15
    • 204-5ubuntu20.18
    • 204-5ubuntu20.19
    • 204-5ubuntu20.20
    • 204-5ubuntu20.21
    • 204-5ubuntu20.22
    • 204-5ubuntu20.24
    • 204-5ubuntu20.25
    • 204-5ubuntu20.26
    • 204-5ubuntu20.28
    • 204-5ubuntu20.29
    • 204-5ubuntu20.31
    • 204-5ubuntu20.31+esm2
    • 204-5ubuntu20.31+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • systemd Ubuntu:Pro:16.04:LTS

    Versions
    • 225-1ubuntu9
    • 227-2ubuntu1
    • 227-2ubuntu2
    • 228-1ubuntu2
    • 228-2ubuntu1
    • 228-2ubuntu2
    • 228-3ubuntu1
    • 228-4ubuntu1
    • 228-4ubuntu2
    • 228-5ubuntu1
    • 228-5ubuntu2
    • 228-5ubuntu3
    • 228-6ubuntu1
    • 229-1ubuntu2
    • 229-1ubuntu4
    • 229-2ubuntu1
    • 229-3ubuntu1
    • 229-3ubuntu2
    • 229-4ubuntu1
    • 229-4ubuntu4
    • 229-4ubuntu5
    • 229-4ubuntu6
    • 229-4ubuntu7
    • 229-4ubuntu8
    • 229-4ubuntu10
    • 229-4ubuntu11
    • 229-4ubuntu12
    • 229-4ubuntu13
    • 229-4ubuntu16
    • 229-4ubuntu17
    • 229-4ubuntu19
    • 229-4ubuntu20
    • 229-4ubuntu21
    • 229-4ubuntu21.1
    • 229-4ubuntu21.2
    • 229-4ubuntu21.3
    • 229-4ubuntu21.4
    • 229-4ubuntu21.5
    • 229-4ubuntu21.6
    • 229-4ubuntu21.8
    • 229-4ubuntu21.9
    • 229-4ubuntu21.10
    • 229-4ubuntu21.15
    • 229-4ubuntu21.16
    • 229-4ubuntu21.17
    • 229-4ubuntu21.19
    • 229-4ubuntu21.21
    • 229-4ubuntu21.22
    • 229-4ubuntu21.23
    • 229-4ubuntu21.27
    • 229-4ubuntu21.28
    • 229-4ubuntu21.29
    • 229-4ubuntu21.31
    • 229-4ubuntu21.31+esm1
    • 229-4ubuntu21.31+esm3
    • 229-4ubuntu21.31+esm4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • systemd Ubuntu:Pro: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
    • 237-3ubuntu10.38
    • 237-3ubuntu10.39
    • 237-3ubuntu10.40
    • 237-3ubuntu10.41
    • 237-3ubuntu10.42
    • 237-3ubuntu10.43
    • 237-3ubuntu10.44
    • 237-3ubuntu10.45
    • 237-3ubuntu10.46
    • 237-3ubuntu10.47
    • 237-3ubuntu10.48
    • 237-3ubuntu10.49
    • 237-3ubuntu10.50
    • 237-3ubuntu10.51
    • 237-3ubuntu10.52
    • 237-3ubuntu10.53
    • 237-3ubuntu10.54
    • 237-3ubuntu10.56
    • 237-3ubuntu10.57
    • 237-3ubuntu10.57+esm2
    • 237-3ubuntu10.57+esm3
    • 237-3ubuntu10.57+esm4
    • 237-3ubuntu10.57+esm5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • systemd Ubuntu:Pro:20.04:LTS

    Versions
    • 242-7ubuntu3
    • 243-2ubuntu1
    • 243-3ubuntu1
    • 244-3ubuntu1
    • 244.1-0ubuntu2
    • 244.1-0ubuntu3
    • 244.2-1ubuntu1
    • 244.3-1ubuntu1
    • 245.2-1ubuntu1
    • 245.2-1ubuntu2
    • 245.4-2ubuntu1
    • 245.4-4ubuntu1
    • 245.4-4ubuntu3
    • 245.4-4ubuntu3.1
    • 245.4-4ubuntu3.2
    • 245.4-4ubuntu3.3
    • 245.4-4ubuntu3.4
    • 245.4-4ubuntu3.5
    • 245.4-4ubuntu3.6
    • 245.4-4ubuntu3.7
    • 245.4-4ubuntu3.10
    • 245.4-4ubuntu3.11
    • 245.4-4ubuntu3.13
    • 245.4-4ubuntu3.14
    • 245.4-4ubuntu3.15
    • 245.4-4ubuntu3.16
    • 245.4-4ubuntu3.17
    • 245.4-4ubuntu3.18
    • 245.4-4ubuntu3.19
    • 245.4-4ubuntu3.20
    • 245.4-4ubuntu3.21
    • 245.4-4ubuntu3.22
    • 245.4-4ubuntu3.23
    • 245.4-4ubuntu3.24
    • 245.4-4ubuntu3.24+esm1
    • 245.4-4ubuntu3.24+esm3
    • 245.4-4ubuntu3.24+esm4
    • 245.4-4ubuntu3.24+esm5
    • 245.4-4ubuntu3.24+esm6
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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