CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
10.1%
Severity: High
Date : 2019-02-21
CVE-ID : CVE-2019-6454
Package : systemd
Type : denial of service
Remote : No
Link : https://security.archlinux.org/AVG-906
The package systemd before version 241.7-1 is vulnerable to denial of
service.
Upgrade to 241.7-1.
The problem has been fixed upstream in version 241.7.
None.
It was found that bus_process_object() in bus-objects.c allocates a
buffer on the stack large enough to temporarily store the object path
specified in the incoming message. A malicious unprivileged local user
to send a message which results in the stack pointer moving outside of
the bounds of the currently mapped stack region, jumping over the stack
guard pages. A specifically crafted DBUS message could crash PID 1 and
result in a subsequent kernel panic.
A local attacker can cause a denial of service via a crafted DBUS
message.
https://bugs.archlinux.org/task/61804
https://bugzilla.redhat.com/show_bug.cgi?id=1667032
https://www.openwall.com/lists/oss-security/2019/02/18/3
https://github.com/systemd/systemd/commit/612b74d32f970c43c14ad087ad086424792981b1
https://github.com/systemd/systemd/commit/61397a60d98e368a5720b37e83f3169e3eb511c4
https://github.com/systemd/systemd/commit/f519a19bcd5afe674a9b8fc462cd77d8bad403c1
https://security.archlinux.org/CVE-2019-6454
bugs.archlinux.org/task/61804
bugzilla.redhat.com/show_bug.cgi?id=1667032
github.com/systemd/systemd/commit/612b74d32f970c43c14ad087ad086424792981b1
github.com/systemd/systemd/commit/61397a60d98e368a5720b37e83f3169e3eb511c4
github.com/systemd/systemd/commit/f519a19bcd5afe674a9b8fc462cd77d8bad403c1
security.archlinux.org/AVG-906
security.archlinux.org/CVE-2019-6454
www.openwall.com/lists/oss-security/2019/02/18/3
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
10.1%