7.2 High
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.7 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
10.3%
Debian LTS Advisory DLA-2627-1 [email protected]
https://www.debian.org/lts/security/ Chris Lamb
April 15, 2021 https://wiki.debian.org/LTS
Package : xorg-server
Version : 2:1.19.2-1+deb9u8
CVE ID : CVE-2021-3472
Jan-Niklas Sohn discovered that there was an input validation failure
in the X.Org display server.
Insufficient checks on the lengths of the XInput extension's
ChangeFeedbackControl request could have lead to out of bounds memory
accesses in the X server. These issues can lead to privilege
escalation for authorised clients, particularly on systems where the
X server is running as a privileged user.
For Debian 9 "Stretch", this problem has been fixed in version
2:1.19.2-1+deb9u8.
We recommend that you upgrade your xorg-server packages.
For the detailed security status of xorg-server please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/xorg-server
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 10 | s390x | xserver-xephyr-dbgsym | <Â 2:1.20.4-1+deb10u3 | xserver-xephyr-dbgsym_2:1.20.4-1+deb10u3_s390x.deb |
Debian | 10 | amd64 | xdmx-dbgsym | <Â 2:1.20.4-1+deb10u3 | xdmx-dbgsym_2:1.20.4-1+deb10u3_amd64.deb |
Debian | 10 | mipsel | xdmx-tools | <Â 2:1.20.4-1+deb10u3 | xdmx-tools_2:1.20.4-1+deb10u3_mipsel.deb |
Debian | 10 | mips64el | xserver-xephyr-dbgsym | <Â 2:1.20.4-1+deb10u3 | xserver-xephyr-dbgsym_2:1.20.4-1+deb10u3_mips64el.deb |
Debian | 10 | ppc64el | xserver-xorg-dev | <Â 2:1.20.4-1+deb10u3 | xserver-xorg-dev_2:1.20.4-1+deb10u3_ppc64el.deb |
Debian | 10 | mipsel | xwayland | <Â 2:1.20.4-1+deb10u3 | xwayland_2:1.20.4-1+deb10u3_mipsel.deb |
Debian | 10 | s390x | xwayland | <Â 2:1.20.4-1+deb10u3 | xwayland_2:1.20.4-1+deb10u3_s390x.deb |
Debian | 10 | mips | xserver-xorg-core-dbgsym | <Â 2:1.20.4-1+deb10u3 | xserver-xorg-core-dbgsym_2:1.20.4-1+deb10u3_mips.deb |
Debian | 10 | ppc64el | xdmx | <Â 2:1.20.4-1+deb10u3 | xdmx_2:1.20.4-1+deb10u3_ppc64el.deb |
Debian | 9 | armhf | xserver-xephyr | <Â 2:1.19.2-1+deb9u8 | xserver-xephyr_2:1.19.2-1+deb9u8_armhf.deb |
7.2 High
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.7 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
10.3%