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Gentoo Linux: CVE-2020-14364: Xen: Buffer overflow

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Gentoo Linux: CVE-2020-14364: Xen: Buffer overflow

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/31/2020
Created
09/30/2020
Added
09/30/2020
Modified
11/12/2020

Description

An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0. This issue occurs while processing USB packets from a guest when USBDevice 'setup_len' exceeds its 'data_buf[4096]' in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the privileges of the QEMU process on the host.

Solution(s)

  • gentoo-linux-upgrade-app-emulation-qemu
  • gentoo-linux-upgrade-app-emulation-xen
  • gentoo-linux-upgrade-app-emulation-xen-tools

References

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