CVE-2021-4009
published 2021-12-17CVE-2021-4009: 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…
PriorityP342high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.57%
43.4th percentile
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.
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | xorg-server | < xorg-server 2:1.20.13-3 (bookworm) | xorg-server 2:1.20.13-3 (bookworm) |
| debian | xwayland | < xorg-server 2:1.20.13-3 (bookworm) | xorg-server 2:1.20.13-3 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| x.org | x_server | < 1.20.14 | 1.20.14 |
| x.org | x_server | — | — |
| x.org | x_server | — | — |
| x.org | xorg-server | >= 0 < 2:1.20.11-1+deb11u1 | 2:1.20.11-1+deb11u1 |
| x.org | xorg-server | >= 0 < 2:1.20.13-3 | 2:1.20.13-3 |
| x.org | xorg-server | >= 0 < 2:1.20.13-3 | 2:1.20.13-3 |
| x.org | xorg-server | >= 0 < 2:1.20.13-3 | 2:1.20.13-3 |
| x.org | xwayland | >= 0 < 2:21.1.4-1 | 2:21.1.4-1 |
| x.org | xwayland | >= 0 < 2:21.1.4-1 | 2:21.1.4-1 |
| x.org | xwayland | >= 0 < 2:21.1.4-1 | 2:21.1.4-1 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.2HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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Ubuntu
X.Org X Server vulnerabilities
vendor_ubuntu·2023-07-27
CVE-2021-4011 X.Org X Server vulnerabilities
Title: X.Org X Server vulnerabilities
Summary: Several security issues were fixed in X.Org X Server.
USN-5193-1 fixed several vulnerabilities in X.Org. This update provides
the corresponding update for Ubuntu 16.04 ESM.
Original advisory details:
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled
certain inputs. An attacker could use this issue to cause the server to
crash, resulting in a denial of service, or possibly execute arbitrary
code and escalate privileges.
Instructions: After a standard system update you need to reboot your computer to make all
the necessary changes.
Ubuntu
X.Org X Server vulnerabilities
vendor_ubuntu·2022-01-26
CVE-2021-4009 X.Org X Server vulnerabilities
Title: X.Org X Server vulnerabilities
Summary: Several security issues were fixed in X.Org X Server.
USN-5193-1 fixed several vulnerabilities in X.Org. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
Original advisory details:
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled
certain inputs. An attacker could use this issue to cause the server to
crash, resulting in a denial of service, or possibly execute arbitrary
code and escalate privileges.
Instructions: After a standard system update you need to reboot your computer to make all
the necessary changes.
Red Hat
xorg-x11-server: SProcXFixesCreatePointerBarrier out-of-bounds access
vendor_redhat·2021-12-14·CVSS 7.8
CVE-2021-4009 [HIGH] CWE-119 xorg-x11-server: SProcXFixesCreatePointerBarrier out-of-bounds access
xorg-x11-server: SProcXFixesCreatePointerBarrier out-of-bounds access
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.
A flaw was found in xorg-x11-server. An out-of-bounds access can occur in the SProcXFixesCreatePointerBarrier function.
Statement: Xorg server does not run with root privileges in Red Hat Enterprise Linux 8, therefore this flaw has been rated as having moderate impact.
Package: xorg-x11-server (Red Hat Enterprise Linux 6) - Out of support scope
Package: xorg-x11-server (Red Hat Enterprise Linux 9) - Not affected
Package: xorg-x11-server-Xw
Ubuntu
X.Org X Server vulnerabilities
vendor_ubuntu·2021-12-14
CVE-2021-4008 X.Org X Server vulnerabilities
Title: X.Org X Server vulnerabilities
Summary: Several security issues were fixed in X.Org X Server.
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled
certain inputs. An attacker could use this issue to cause the server to
crash, resulting in a denial of service, or possibly execute arbitrary
code and escalate privileges.
Instructions: After a standard system update you need to reboot your computer to make all
the necessary changes.
Debian
CVE-2021-4009: xorg-server - A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14...
vendor_debian·2021·CVSS 7.8
CVE-2021-4009 [HIGH] CVE-2021-4009: xorg-server - A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14...
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.
Scope: local
bookworm: resolved (fixed in 2:1.20.13-3)
bullseye: resolved (fixed in 2:1.20.11-1+deb11u1)
forky: resolved (fixed in 2:1.20.13-3)
sid: resolved (fixed in 2:1.20.13-3)
trixie: resolved (fixed in 2:1.20.13-3)
GHSA
GHSA-2g88-r927-2prg: A flaw was found in xorg-x11-server in versions before 21
ghsa_unreviewed·2021-12-18
CVE-2021-4009 [HIGH] CWE-119 GHSA-2g88-r927-2prg: A flaw was found in xorg-x11-server in versions before 21
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.
OSV
CVE-2021-4009: A flaw was found in xorg-x11-server in versions before 21
osv·2021-12-17·CVSS 7.8
CVE-2021-4009 [HIGH] CVE-2021-4009: A flaw was found in xorg-x11-server in versions before 21
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://lists.debian.org/debian-lts-announce/2021/12/msg00035.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKLSZCY47QK4RCJFXITYFALCGPJAFXOK/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NXTRPFEQLFZ6NT2LPLZEID664RGC3OCC/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PDHYZM6FII35JA7J275MFCJO6ADJUPQX/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T57DCF726O5LLTST4NBL5PQ7DLPB46HT/https://lists.x.org/archives/xorg-announce/2021-December/003122.htmlhttps://lists.x.org/archives/xorg-announce/2021-December/003124.htmlhttps://security.gentoo.org/glsa/202305-30https://security.netapp.com/advisory/ntap-20220114-0004/https://www.debian.org/security/2021/dsa-5027https://www.zerodayinitiative.com/advisories/ZDI-21-1548/https://lists.debian.org/debian-lts-announce/2021/12/msg00035.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKLSZCY47QK4RCJFXITYFALCGPJAFXOK/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NXTRPFEQLFZ6NT2LPLZEID664RGC3OCC/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PDHYZM6FII35JA7J275MFCJO6ADJUPQX/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T57DCF726O5LLTST4NBL5PQ7DLPB46HT/https://lists.x.org/archives/xorg-announce/2021-December/003122.htmlhttps://lists.x.org/archives/xorg-announce/2021-December/003124.htmlhttps://security.gentoo.org/glsa/202305-30https://security.netapp.com/advisory/ntap-20220114-0004/https://www.debian.org/security/2021/dsa-5027https://www.zerodayinitiative.com/advisories/ZDI-21-1548/
2021-12-17
Published