Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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.

Published

2018-12-20T23:29:02.177

Last Modified

2024-11-21T04:00:54.243

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Primary
CWE-125

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	qemu	qemu	≤ 3.1.0	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	canonical	ubuntu_linux	18.10	Yes

References

http://www.openwall.com/lists/oss-security/2018/12/18/2 Mailing List, Patch, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/106290 Third Party Advisory, VDB Entry ([email protected])
https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02822.html Patch, Third Party Advisory ([email protected])
https://usn.ubuntu.com/3923-1/ Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2018/12/18/2 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/106290 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02822.html Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3923-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)