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CVE-2018-20855

Affected software4 products, listed below
Severity3.3 Low CVSS 3.1 2 scores
WeaknessBuffer errors (CWE-119)
Published26 Jul 2019
Updated17 Jun 2026

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 userspace.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 7 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 0.47% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review human Researcher
  • Record active
Decided by Manual classification of this CVE in the legacy dataset
Finding A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

CVSS

3.3 LOW v3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 3.3 LOW CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N NVD Primary published
CVSS 2.0 2.1 none AV:L/AC:L/Au:N/C:P/I:N/A:N NVD Primary

Affected software and releases

Products and versions

6 products, 7 version entries
SourceVendorProductSchemeAffected versions
nvd linux linux kernel generic < 4.18.7
nvd netapp active iq performance analytics services generic any version
nvd netapp active iq unified manager generic ≥ 9.5
nvd netapp data availability services generic any version
nvd netapp element software generic any version
nvd opensuse leap generic 15.0 · 15.1

References

URLTags
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7 Mailing List, Release Notes, Vendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0625b4ba1a5d4703c7fb01c497bd6c156908af00 Mailing List, Patch, Vendor Advisory
https://github.com/torvalds/linux/commit/0625b4ba1a5d4703c7fb01c497bd6c156908af00 Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20190905-0002/ Third Party Advisory

Timeline

Published2019-07-26By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.