Published: 20/12/2018 Updated: 12/05/2020

CVSS v2 Base Score: 2.1 | Impact Score: 2.9 | Exploitability Score: 3.9

CVSS v3 Base Score: 5.5 | Impact Score: 3.6 | Exploitability Score: 1.8

VMScore: 187

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

hw/rdma/rdma_backend.c in QEMU allows guest OS users to trigger out-of-bounds access via a PvrdmaSqWqe ring element with a large num_sge value.

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qemu qemu
canonical ubuntu linux 18.10
canonical ubuntu linux 18.04
canonical ubuntu linux 16.04
canonical ubuntu linux 14.04

Debian Bug report logs - #922461 CVE-2018-20124 Package: src:qemu; Maintainer for src:qemu is Debian QEMU Team <pkg-qemu-devel@listsaliothdebianorg>; Reported by: Moritz Muehlenhoff <jmm@debianorg> Date: Sat, 16 Feb 2019 12:45:02 UTC Severity: minor Tags: security, upstream Found in version qemu/1:31+dfsg-3 ...

Several security issues were fixed in QEMU ...

hw/rdma/rdma_backendc in QEMU allows guest OS users to trigger out-of-bounds access via a PvrdmaSqWqe ring element with a large num_sge value ...

CWE-125 https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02822.html http://www.openwall.com/lists/oss-security/2018/12/18/2 http://www.securityfocus.com/bid/106290 https://usn.ubuntu.com/3923-1/https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=922461 https://nvd.nist.gov https://usn.ubuntu.com/3923-1/https://access.redhat.com/security/cve/cve-2018-20124

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CVE-2018-20124

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