CVE-2018-20124

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.

CVSS v3.0 5.5 MEDIUM
CVSS v2.0 2.1 LOW

5.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02822.html	Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2018/12/18/2	Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/106290	Third Party Advisory VDB Entry
https://usn.ubuntu.com/3923-1/	Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:18.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::

Information

Published : 2018-12-20 15:29

Updated : 2020-05-12 10:58

NVD link : CVE-2018-20124

Mitre link : CVE-2018-20124

JSON object : View

CWE

CWE-125

Out-of-bounds Read

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Products Affected

canonical

ubuntu_linux

qemu

qemu

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