CVE-2018-20855
mlx5_ib Uninitialized Stack Memory Leak in Linux Kernel
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.
INFO
Published Date :
July 26, 2019, 5:15 a.m.
Last Modified :
Nov. 20, 2019, 3:31 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
1.4
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2018-20855
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-20855.
| URL | Resource |
|---|---|
| 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 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-20855 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-20855 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Nov. 20, 2019
Action Type Old Value New Value Removed CVSS V3 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html Third Party Advisory Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20190905-0002/ No Types Assigned https://security.netapp.com/advisory/ntap-20190905-0002/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:netapp:active_iq_performance_analytics_services:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:vmware_vsphere:*:* versions from (including) 9.5 *cpe:2.3:a:netapp:data_availability_services:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 06, 2019
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20190905-0002/ [No Types Assigned] -
CVE Modified by [email protected]
Aug. 16, 2019
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html [No Types Assigned] Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 01, 2019
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7 Mailing List, Release Notes, Vendor Advisory Changed Reference Type https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0625b4ba1a5d4703c7fb01c497bd6c156908af00 No Types Assigned https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0625b4ba1a5d4703c7fb01c497bd6c156908af00 Mailing List, Patch, Vendor Advisory Changed Reference Type https://github.com/torvalds/linux/commit/0625b4ba1a5d4703c7fb01c497bd6c156908af00 No Types Assigned https://github.com/torvalds/linux/commit/0625b4ba1a5d4703c7fb01c497bd6c156908af00 Patch, Third Party Advisory Added CWE CWE-119 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.18.7
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-20855 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-20855
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.01%
score
0.26529
percentile