7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.002 Low
EPSS
Percentile
60.8%
In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image,
performing some operations, and unmounting can lead to a use-after-free in
btrfs_queue_work in fs/btrfs/async-thread.c.
Author | Note |
---|---|
tyhicks | Exploiting this vulnerability requires a crafted filesystem image to be mounted |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-109.110 | UNKNOWN |
ubuntu | 19.10 | noarch | linux | < 5.3.0-53.47 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < 5.4.0-31.35 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1077.81 | UNKNOWN |
ubuntu | 19.10 | noarch | linux-aws | < 5.3.0-1019.21 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1011.11 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.3 | < 5.3.0-1019.21~18.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws-hwe | < 4.15.0-1079.83~16.04.1 | UNKNOWN |
ubuntu | 19.10 | noarch | linux-azure | < 5.3.0-1022.23 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure | < 5.4.0-1012.12 | UNKNOWN |
github.com/bobfuzzer/CVE/tree/master/CVE-2019-19377
launchpad.net/bugs/cve/CVE-2019-19377
nvd.nist.gov/vuln/detail/CVE-2019-19377
security-tracker.debian.org/tracker/CVE-2019-19377
ubuntu.com/security/notices/USN-4367-1
ubuntu.com/security/notices/USN-4369-1
ubuntu.com/security/notices/USN-4414-1
www.cve.org/CVERecord?id=CVE-2019-19377
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.002 Low
EPSS
Percentile
60.8%