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CVE-2023-1393

Status Candidate

Overview

A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.

Related Files

Red Hat Security Advisory 2023-6917-01
Posted Nov 15, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-6917-01 - An update for xorg-x11-server-Xwayland is now available for Red Hat Enterprise Linux 8. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2023-1393
SHA-256 | c8631bbe9c0400dbe8314af79faa71bf085018dadf7ae69c853b195775390aca
Red Hat Security Advisory 2023-6916-01
Posted Nov 15, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-6916-01 - An update for xorg-x11-server is now available for Red Hat Enterprise Linux 8. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2023-1393
SHA-256 | b689101424e4e61a9b3f862d17c70f1b37b3ee507d86386b1cb9b2553aa779c4
Red Hat Security Advisory 2023-6341-01
Posted Nov 13, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-6341-01 - An update for xorg-x11-server-Xwayland is now available for Red Hat Enterprise Linux 9. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2023-1393
SHA-256 | 264ce2f856ae7f2f6af6e0a5c5516aba587c7b91fba04ba075c4be7835f06c6e
Red Hat Security Advisory 2023-6340-01
Posted Nov 13, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-6340-01 - An update for xorg-x11-server is now available for Red Hat Enterprise Linux 9. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2023-1393
SHA-256 | e95f912b3940196416e51964ec8525a230924e1cbb2da9b2ed1a461e01ba4463
Red Hat Security Advisory 2023-1551-01
Posted Oct 11, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-1551-01 - Virtual Network Computing is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, remote, vulnerability
systems | linux, redhat
advisories | CVE-2023-1393
SHA-256 | 47695fbffa70cae750c4d9c13aaa05233b68e96787eea51f85387f6bc7ab9f1b
Red Hat Security Advisory 2023-1548-01
Posted Oct 11, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-1548-01 - Virtual Network Computing is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, remote, vulnerability
systems | linux, redhat
advisories | CVE-2023-1393
SHA-256 | 6cccf25a87af3015324a9322e1e97c6169a59f621607c7fc83df78f279ba16ac
Red Hat Security Advisory 2023-1549-01
Posted Apr 10, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-1549-01 - Virtual Network Computing is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, remote, vulnerability
systems | linux, redhat
advisories | CVE-2023-1393
SHA-256 | 4551124d4832a19be447b0a8668a4b17598d26fdbae2e5a431bd1552d31bba18
Red Hat Security Advisory 2023-1600-01
Posted Apr 5, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-1600-01 - Virtual Network Computing is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, remote, vulnerability
systems | linux, redhat
advisories | CVE-2023-1393
SHA-256 | fc057aba47f7d916e14090d299dc9a79507a79cca043ccbaad2642679f5a2595
Red Hat Security Advisory 2023-1594-01
Posted Apr 5, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-1594-01 - Virtual Network Computing is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients. X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, remote, vulnerability
systems | linux, redhat
advisories | CVE-2023-1393
SHA-256 | 65129bf750a22c59ea20b3cf7ae42e88014cc2d84c3d363b6a73008d0716ec9e
Red Hat Security Advisory 2023-1599-01
Posted Apr 5, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-1599-01 - Virtual Network Computing is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, remote, vulnerability
systems | linux, redhat
advisories | CVE-2023-1393
SHA-256 | 4500748737d52bb701f5c5f335c20d17ec96139ba0c931cd5ba642232d2afa9b
Red Hat Security Advisory 2023-1598-01
Posted Apr 5, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-1598-01 - Virtual Network Computing is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, remote, vulnerability
systems | linux, redhat
advisories | CVE-2023-1393
SHA-256 | bd0a6bf47a01cb34c75f400e981d7ac3dafffa21708a2530415d0837bb525587
Red Hat Security Advisory 2023-1592-01
Posted Apr 5, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-1592-01 - Virtual Network Computing is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, remote, vulnerability
systems | linux, redhat
advisories | CVE-2023-1393
SHA-256 | ad2fba07056c2699dc8a5a6f630da7ef452ef782a0d155f2b48eb1f9e50c8bd8
Ubuntu Security Notice USN-5986-1
Posted Mar 30, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5986-1 - Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled certain memory operations. An attacker could possibly use these issues to cause the X Server to crash, execute arbitrary code, or escalate privileges.

tags | advisory, arbitrary
systems | linux, ubuntu
advisories | CVE-2023-1393
SHA-256 | 911066ac4311b788c41404c574cbf8917d8b512368840266587db82f72a72ccc
Debian Security Advisory 5380-1
Posted Mar 30, 2023
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5380-1 - Jan-Niklas Sohn discovered that a user-after-free flaw in the Composite extension of the X.org X server may result in privilege escalation if the X server is running under the root user.

tags | advisory, root
systems | linux, debian
advisories | CVE-2023-1393
SHA-256 | 013d8199c96a3b7dd39b9bfe5fe4ea2bc5461ae2364515cecde74828ad3a6eb2
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