Ubuntu.comUB:CVE-2021-4009CVE-2021-4009
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
7.2 High
CVSS2
Access Vector
LOCAL
Access 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
0.0005 Low
EPSS
Percentile
16.6%
A flaw was found in xorg-x11-server in versions before 21.1.2 and before
1.20.14. An out-of-bounds access can occur in the
SProcXFixesCreatePointerBarrier function. The highest threat from this
vulnerability is to data confidentiality and integrity as well as system
availability.
Notes
| Author | Note |
|---|---|
| mdeslaur | xorg server is actually the xorg-server package the xorg package only contains docs xwayland package contains parts of xorg-server This is ZDI-CAN 14950 |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | xorg-server | < 2:1.19.6-1ubuntu4.10 | UNKNOWN |
| ubuntu | 20.04 | noarch | xorg-server | < 2:1.20.13-1ubuntu1~20.04.2 | UNKNOWN |
| ubuntu | 21.04 | noarch | xorg-server | < 2:1.20.11-1ubuntu1.2 | UNKNOWN |
| ubuntu | 21.10 | noarch | xorg-server | < 2:1.20.13-1ubuntu1.1 | UNKNOWN |
| ubuntu | 22.04 | noarch | xorg-server | < 2:1.20.13-1ubuntu2 | UNKNOWN |
| ubuntu | 22.10 | noarch | xorg-server | < 2:1.20.13-1ubuntu2 | UNKNOWN |
| ubuntu | 23.04 | noarch | xorg-server | < 2:1.20.13-1ubuntu2 | UNKNOWN |
| ubuntu | 14.04 | noarch | xorg-server | < 2:1.15.1-0ubuntu2.11+esm5) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 16.04 | noarch | xorg-server | < 2:1.18.4-0ubuntu0.12+esm1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 16.04 | noarch | xorg-server-hwe-16.04 | < 2:1.19.6-1ubuntu4.1~16.04.6+esm5) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
References
launchpad.net/bugs/cve/CVE-2021-4009
nvd.nist.gov/vuln/detail/CVE-2021-4009
security-tracker.debian.org/tracker/CVE-2021-4009
ubuntu.com/security/notices/USN-5193-1
ubuntu.com/security/notices/USN-5193-2
ubuntu.com/security/notices/USN-5193-3
www.cve.org/CVERecord?id=CVE-2021-4009
www.openwall.com/lists/oss-security/2021/12/14/1
Related
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
7.2 High
CVSS2
Access Vector
LOCAL
Access 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
0.0005 Low
EPSS
Percentile
16.6%