01 Record

CVE-2018-20855

An issue was discovered in the Linux kernel before 4.18.7. In create_qp_common in drivers/infiniband/hw/mlx5/qp.c, mlx5_ib_create_qp_resp was never initialized, resulting in a leak of stack memory to

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

An issue was discovered in the Linux kernel before 4.18.7. In create_qp_common in drivers/infiniband/hw/mlx5/qp.c, mlx5_ib_create_qp_resp was never initialized, resulting in a leak of stack memory to

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.46% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 40.1% of scored records. A rank, not a probability.
NVD base score: 3.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2019-07-26 04:39Z7 YR AGO

Last updated

2024-08-05 12:12Z2 YR AGO

Reserved

2019-07-26

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass

Data version

5.1

Document digest

fdbeb19fc0c4d31dd6da5f7230887da8b4c4e3601ed71c27ebc20c07a1d3925d

05 Affected products

VendorProductVersionsPlatforms

linuxlinux_kernelNot specified—

netappactive_iq_performance_analytics_servicesNot specified—

netappactive_iq_unified_managerNot specified—

netappdata_availability_servicesNot specified—

netappelement_softwareNot specified—

opensuseleapNot specified—

redhatenterprise_linuxNot specified—

redhatenterprise_mrgNot specified—

06 References

github.comhttps://github.com/torvalds/linux/commit/0625b4ba1a5d4703c7fb01c497bd6c156908af00x_refsource_MISC
git.kernel.orghttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0625b4ba1a5d4703c7fb01c497bd6c156908af00x_refsource_MISC
cdn.kernel.orghttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7x_refsource_MISC
lists.opensuse.orgopenSUSE-SU-2019:1924http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.htmlvendor-advisoryx_refsource_SUSE
lists.opensuse.orgopenSUSE-SU-2019:1923http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.htmlvendor-advisoryx_refsource_SUSE
security.netapp.comhttps://security.netapp.com/advisory/ntap-20190905-0002/x_refsource_CONFIRM

07 Fixed in

Debian 12

linux
Fixed in 4.18.8-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 4.18.8-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 4.18.8-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.