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Ubuntu: (CVE-2019-3837): linux vulnerability

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Ubuntu: (CVE-2019-3837): linux vulnerability

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
04/11/2019
Created
11/21/2024
Added
11/19/2024
Modified
11/19/2024

Description

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.

Solution(s)

  • ubuntu-upgrade-linux

References

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