CVE-2021-4011
published 2021-12-17CVE-2021-4011: 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 SwapCreateRegister function. The…
PriorityP342high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.61%
48.4th 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 SwapCreateRegister 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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GHSA
GHSA-pxmq-rrfv-xh8v: A flaw was found in xorg-x11-server in versions before 21
ghsa_unreviewed·2021-12-18
CVE-2021-4011 [HIGH] CWE-119 GHSA-pxmq-rrfv-xh8v: 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 SwapCreateRegister function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
OSV
CVE-2021-4011: A flaw was found in xorg-x11-server in versions before 21
osv·2021-12-17·CVSS 7.8
CVE-2021-4011 [HIGH] CVE-2021-4011: 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 SwapCreateRegister function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
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.
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.
Red Hat
xorg-x11-server: SwapCreateRegister out-of-bounds access
vendor_redhat·2021-12-14·CVSS 7.8
CVE-2021-4011 [HIGH] CWE-119 xorg-x11-server: SwapCreateRegister out-of-bounds access
xorg-x11-server: SwapCreateRegister 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 SwapCreateRegister 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 where an out-of-bounds access can occur in the SwapCreateRegister 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-Xwayland (Red Hat Enterprise Linux 9
Debian
CVE-2021-4011: 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-2021-4011 [HIGH] CVE-2021-4011: 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 SwapCreateRegister 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)
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-21-1550/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-21-1550/
2021-12-17
Published