CVE-2019-3837

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.
References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3837 Issue Tracking Patch Third Party Advisory
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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:2.6.32:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*

Information

Published : 2019-04-11 08:29

Updated : 2022-12-02 15:05


NVD link : CVE-2019-3837

Mitre link : CVE-2019-3837


JSON object : View

CWE
CWE-401

Missing Release of Memory after Effective Lifetime

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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Products Affected

redhat

  • enterprise_linux

linux

  • linux_kernel