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CVE-2018-20856 Details

Description

An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html CVE
http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html CVE
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html CVE
https://access.redhat.com/errata/RHSA-2019:3055 CVE
https://access.redhat.com/errata/RHSA-2019:3076 CVE

see all 48 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-416Use After Free[email protected]

Affected Products

ProductVersions
linux linux kernel
< 4.18.7

CPE

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

23 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2018-20856
NVD Published Date:
Jul 26, 2019
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2018-20856 Details - Not Deferred