-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: tigervnc security and bug fix update Advisory ID: RHSA-2023:2257-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2023:2257 Issue date: 2023-05-09 CVE Names: CVE-2022-4283 CVE-2022-46340 CVE-2022-46341 CVE-2022-46342 CVE-2022-46343 CVE-2022-46344 ==================================================================== 1. Summary: An update for tigervnc is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream (v. 9) - aarch64, noarch, ppc64le, s390x, x86_64 3. Description: Virtual Network Computing (VNC) 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. Security Fix(es): * xorg-x11-server: XkbGetKbdByName use-after-free (CVE-2022-4283) * xorg-x11-server: XTestSwapFakeInput stack overflow (CVE-2022-46340) * xorg-x11-server: XIPassiveUngrab out-of-bounds access (CVE-2022-46341) * xorg-x11-server: XvdiSelectVideoNotify use-after-free (CVE-2022-46342) * xorg-x11-server: ScreenSaverSetAttributes use-after-free (CVE-2022-46343) * xorg-x11-server: XIChangeProperty out-of-bounds access (CVE-2022-46344) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.2 Release Notes linked from the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 2119016 - 'ghost pointer' behavior observed when using TigerVNC's x0vncserver 2119017 - x0vncserver incorrectly maps keysym from vncclient running german keyboard 2151755 - CVE-2022-46340 xorg-x11-server: XTestSwapFakeInput stack overflow 2151756 - CVE-2022-46341 xorg-x11-server: XIPassiveUngrab out-of-bounds access 2151757 - CVE-2022-46342 xorg-x11-server: XvdiSelectVideoNotify use-after-free 2151758 - CVE-2022-46343 xorg-x11-server: ScreenSaverSetAttributes use-after-free 2151760 - CVE-2022-46344 xorg-x11-server: XIChangeProperty out-of-bounds access 2151761 - CVE-2022-4283 xorg-x11-server: XkbGetKbdByName use-after-free 2164703 - selinux policy will not allow tigervnc-server to start 2169965 - Backport upstream fix for broken keyboard handling 6. Package List: Red Hat Enterprise Linux AppStream (v. 9): Source: tigervnc-1.12.0-13.el9_2.src.rpm aarch64: tigervnc-1.12.0-13.el9_2.aarch64.rpm tigervnc-debuginfo-1.12.0-13.el9_2.aarch64.rpm tigervnc-debugsource-1.12.0-13.el9_2.aarch64.rpm tigervnc-server-1.12.0-13.el9_2.aarch64.rpm tigervnc-server-debuginfo-1.12.0-13.el9_2.aarch64.rpm tigervnc-server-minimal-1.12.0-13.el9_2.aarch64.rpm tigervnc-server-minimal-debuginfo-1.12.0-13.el9_2.aarch64.rpm tigervnc-server-module-1.12.0-13.el9_2.aarch64.rpm tigervnc-server-module-debuginfo-1.12.0-13.el9_2.aarch64.rpm noarch: tigervnc-icons-1.12.0-13.el9_2.noarch.rpm tigervnc-license-1.12.0-13.el9_2.noarch.rpm tigervnc-selinux-1.12.0-13.el9_2.noarch.rpm ppc64le: tigervnc-1.12.0-13.el9_2.ppc64le.rpm tigervnc-debuginfo-1.12.0-13.el9_2.ppc64le.rpm tigervnc-debugsource-1.12.0-13.el9_2.ppc64le.rpm tigervnc-server-1.12.0-13.el9_2.ppc64le.rpm tigervnc-server-debuginfo-1.12.0-13.el9_2.ppc64le.rpm tigervnc-server-minimal-1.12.0-13.el9_2.ppc64le.rpm tigervnc-server-minimal-debuginfo-1.12.0-13.el9_2.ppc64le.rpm tigervnc-server-module-1.12.0-13.el9_2.ppc64le.rpm tigervnc-server-module-debuginfo-1.12.0-13.el9_2.ppc64le.rpm s390x: tigervnc-1.12.0-13.el9_2.s390x.rpm tigervnc-debuginfo-1.12.0-13.el9_2.s390x.rpm tigervnc-debugsource-1.12.0-13.el9_2.s390x.rpm tigervnc-server-1.12.0-13.el9_2.s390x.rpm tigervnc-server-debuginfo-1.12.0-13.el9_2.s390x.rpm tigervnc-server-minimal-1.12.0-13.el9_2.s390x.rpm tigervnc-server-minimal-debuginfo-1.12.0-13.el9_2.s390x.rpm tigervnc-server-module-1.12.0-13.el9_2.s390x.rpm tigervnc-server-module-debuginfo-1.12.0-13.el9_2.s390x.rpm x86_64: tigervnc-1.12.0-13.el9_2.x86_64.rpm tigervnc-debuginfo-1.12.0-13.el9_2.x86_64.rpm tigervnc-debugsource-1.12.0-13.el9_2.x86_64.rpm tigervnc-server-1.12.0-13.el9_2.x86_64.rpm tigervnc-server-debuginfo-1.12.0-13.el9_2.x86_64.rpm tigervnc-server-minimal-1.12.0-13.el9_2.x86_64.rpm tigervnc-server-minimal-debuginfo-1.12.0-13.el9_2.x86_64.rpm tigervnc-server-module-1.12.0-13.el9_2.x86_64.rpm tigervnc-server-module-debuginfo-1.12.0-13.el9_2.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2022-4283 https://access.redhat.com/security/cve/CVE-2022-46340 https://access.redhat.com/security/cve/CVE-2022-46341 https://access.redhat.com/security/cve/CVE-2022-46342 https://access.redhat.com/security/cve/CVE-2022-46343 https://access.redhat.com/security/cve/CVE-2022-46344 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.2_release_notes/index 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2023 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBZFo039zjgjWX9erEAQgoeA//REkM5WpPmwyMWfExgYlCI6YF45y/2wlf p7Oqt+TKk+0FH+I2PofqiUgR4yWgfV5Z7FvgUjjK7fYWvvj6/H4vo5vMLiGLXGB5 djZWDCOS0Xu2mqJESR4TtkjdcHLBGIKkd2fDc9D6ZrhVQ5UT/tGNM/6uLcrM2TZu ml+dgHytIHngK4gO9cnPmxGqjj3Vv5WpmKVAAZ2n/w4sIAxB3kOScUM22SV86+Lb 0xA7rQ10oPK1QG0IBgW51GbUFF6OZbm7+Q+R5edpp04Fheita+LK1EZ0sFqnFd1x EenVJzowoth6Dh32kirXJAEZ0xD033eJyEwNwrBGsm5a9jHuaTzy8XZrXOSekzmv b+KD//ogElcb+X77QQlSVHUlfJFGVo7fQah8/d14HugUr7QEiFE4zvk7CnipI9VR 2PrAWjxwYD56+ND79doZjKA1WM1riTCE9HmTqjSnCmeMLPNHaykrCsRFKdh6FE11 afQyknfotNppRR2sAMLPC1gMKRkNcMwzlEQXW1ttp23OL0njvJTC/hT4lqmz7pir IVEavwUhTgF9WqfRzMnlNE4nq2sdnJCDGVSKl/4LLlTAALkTkUoDRoX9P4MFQ34m 5jdKTIA84CubxxyPqpUw89JBcTozV7/iPu638+lcdW7fg1xL0hr2zFQdprsXXMLl vJzDSb1CxWQ=+zEx -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce