National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-20856 Detail

Current 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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.8 HIGH
Vector:  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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Hyperlink Resource
http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
https://access.redhat.com/errata/RHSA-2019:3055
https://access.redhat.com/errata/RHSA-2019:3076
https://access.redhat.com/errata/RHSA-2019:3089
https://access.redhat.com/errata/RHSA-2019:3217
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=54648cf1ec2d7f4b6a71767799c45676a138ca24 Mailing List Patch Vendor Advisory
https://github.com/torvalds/linux/commit/54648cf1ec2d7f4b6a71767799c45676a138ca24 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html
https://seclists.org/bugtraq/2019/Aug/18
https://seclists.org/bugtraq/2019/Aug/26
https://security.netapp.com/advisory/ntap-20190905-0002/
https://support.f5.com/csp/article/K14673240?utm_source=f5support&utm_medium=RSS
https://usn.ubuntu.com/4094-1/
https://usn.ubuntu.com/4116-1/
https://usn.ubuntu.com/4118-1/
https://www.debian.org/security/2019/dsa-4497

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
4.18.7


Change History

14 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-20856
NVD Published Date:
07/26/2019
NVD Last Modified:
08/13/2019