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
0.003 Low
EPSS
Percentile
68.0%
In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image,
performing some operations, and unmounting can lead to a use-after-free in
ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in
fs/ext4/super.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 | <Â 4.15.0-88.88 | UNKNOWN |
ubuntu | 19.10 | noarch | linux | <Â 5.3.0-40.32 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | <Â 4.4.0-173.203 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | <Â 4.15.0-1060.62 | UNKNOWN |
ubuntu | 19.10 | noarch | linux-aws | <Â 5.3.0-1011.12 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | <Â 4.4.0-1101.112 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.0 | <Â 5.0.0-1025.28 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws-hwe | <Â 4.15.0-1060.62~16.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-azure | <Â 5.0.0-1032.34 | UNKNOWN |
ubuntu | 19.10 | noarch | linux-azure | <Â 5.3.0-1013.14 | UNKNOWN |
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
0.003 Low
EPSS
Percentile
68.0%