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CVE-2019-3837

CVE-2019-3837

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

It was found that the net_dma code in tcp_recvmsg() in the 2.6.32 kernel as shipped in RHEL6 is thread-unsafe. So an unprivileged multi-threaded userspace application calling recvmsg() for the same network socket in parallel executed on ioatdma-enabled hardware with net_dma enabled can leak the memory, crash the host leading to a denial-of-service or cause a random memory corruption.

CVSS 6.1 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • kernel

    Versions
    • 2.6.32 as shipped in rhel-6: Affected

    No fix published

  • linux Debian:12

    Affected ranges
    • ECOSYSTEM: < 3.13.4-1

    Update to 3.13.4-1

  • linux Debian:13

    Affected ranges
    • ECOSYSTEM: < 3.13.4-1

    Update to 3.13.4-1

  • linux Debian:14

    Affected ranges
    • ECOSYSTEM: < 3.13.4-1

    Update to 3.13.4-1

  • linux Ubuntu:14.04:LTS

    Versions
    • 3.11.0-12.19
    • 3.12.0-1.3
    • 3.12.0-2.5
    • 3.12.0-2.7
    • 3.12.0-3.8
    • 3.12.0-3.9
    • 3.12.0-4.10
    • 3.12.0-4.12
    • 3.12.0-5.13
    • 3.12.0-7.15
    • 3.13.0-1.16
    • 3.13.0-2.17
    • 3.13.0-3.18
    • 3.13.0-4.19
    • 3.13.0-5.20
    • 3.13.0-6.23
    • 3.13.0-7.25
    • 3.13.0-7.26
    • 3.13.0-8.27
    • 3.13.0-8.28
    • 3.13.0-10.30
    • 3.13.0-11.31
    • 3.13.0-12.32
    • 3.13.0-13.33
    • 3.13.0-14.34
    • 3.13.0-15.35
    • 3.13.0-16.36
    • 3.13.0-17.37
    • 3.13.0-18.38
    • 3.13.0-19.39
    • 3.13.0-19.40
    • 3.13.0-20.42
    • 3.13.0-21.43
    • 3.13.0-22.44
    • 3.13.0-23.45
    • 3.13.0-24.46
    • 3.13.0-24.47
    • 3.13.0-27.50
    • 3.13.0-29.53
    • 3.13.0-30.54
    • 3.13.0-30.55
    • 3.13.0-32.57
    • 3.13.0-33.58
    • 3.13.0-34.60
    • 3.13.0-35.62
    • 3.13.0-36.63
    • 3.13.0-37.64
    • 3.13.0-39.66
    Affected ranges
    • ECOSYSTEM: < 3.13.0-40.69

    Update to 3.13.0-40.69

Original sources

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