7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
0.0005 Low
EPSS
Percentile
14.7%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux-aws | <Β 4.15.0-1047.49 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | <Β 4.4.0-1092.103 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws-hwe | <Β 4.15.0-1047.49~16.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-azure | <Β 4.18.0-1011.11~18.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-azure | <Β 4.15.0-1055.60 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-azure-edge | <Β 4.18.0-1011.11~18.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-azure-edge | <Β 4.15.0-1055.60 | UNKNOWN |
ubuntu | 18.04 | noarch | linux | <Β 4.15.0-58.64 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | <Β 4.4.0-161.189 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-gcp | <Β 4.15.0-1040.42 | UNKNOWN |
cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20856
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54648cf1ec2d7f4b6a71767799c45676a138ca24
github.com/torvalds/linux/commit/54648cf1ec2d7f4b6a71767799c45676a138ca24
launchpad.net/bugs/cve/CVE-2018-20856
nvd.nist.gov/vuln/detail/CVE-2018-20856
security-tracker.debian.org/tracker/CVE-2018-20856
ubuntu.com/security/notices/USN-4094-1
ubuntu.com/security/notices/USN-4116-1
ubuntu.com/security/notices/USN-4118-1
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
0.0005 Low
EPSS
Percentile
14.7%