-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: kdenetwork security update Advisory ID: RHSA-2014:1827-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-1827.html Issue date: 2014-11-11 CVE Names: CVE-2014-6053 CVE-2014-6054 CVE-2014-6055 ===================================================================== 1. Summary: Updated kdenetwork packages that fix three security issues are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Server (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - x86_64 Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: The kdenetwork packages contain networking applications for the K Desktop Environment (KDE). Krfb Desktop Sharing, which is a part of the kdenetwork package, is a server application that allows session sharing between users. Krfb uses the LibVNCServer library. A NULL pointer dereference flaw was found in the way LibVNCServer handled certain ClientCutText message. A remote attacker could use this flaw to crash the VNC server by sending a specially crafted ClientCutText message from a VNC client. (CVE-2014-6053) A divide-by-zero flaw was found in the way LibVNCServer handled the scaling factor when it was set to "0". A remote attacker could use this flaw to crash the VNC server using a malicious VNC client. (CVE-2014-6054) Two stack-based buffer overflow flaws were found in the way LibVNCServer handled file transfers. A remote attacker could use this flaw to crash the VNC server using a malicious VNC client. (CVE-2014-6055) Red Hat would like to thank oCERT for reporting these issues. oCERT acknowledges Nicolas Ruff as the original reporter. Note: Prior to this update, the kdenetwork packages used an embedded copy of the LibVNCServer library. With this update, the kdenetwork packages have been modified to use the system LibVNCServer packages. Therefore, the update provided by RHSA-2014:1826 must be installed to fully address the issues in krfb described above. All kdenetwork users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All running instances of the krfb server must be restarted for this update to take effect. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1144289 - CVE-2014-6053 libvncserver: server NULL pointer dereference flaw in ClientCutText message handling 1144291 - CVE-2014-6054 libvncserver: server divide-by-zero flaw in scaling factor handling 1144293 - CVE-2014-6055 libvncserver: server stacked-based buffer overflow flaws in file transfer handling 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: kdenetwork-4.10.5-8.el7_0.src.rpm noarch: kdenetwork-common-4.10.5-8.el7_0.noarch.rpm x86_64: kdenetwork-debuginfo-4.10.5-8.el7_0.i686.rpm kdenetwork-debuginfo-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kdnssd-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kget-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kget-libs-4.10.5-8.el7_0.i686.rpm kdenetwork-kget-libs-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krdc-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krdc-libs-4.10.5-8.el7_0.i686.rpm kdenetwork-krdc-libs-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krfb-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krfb-libs-4.10.5-8.el7_0.i686.rpm kdenetwork-krfb-libs-4.10.5-8.el7_0.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): noarch: kdenetwork-devel-4.10.5-8.el7_0.noarch.rpm x86_64: kdenetwork-4.10.5-8.el7_0.x86_64.rpm kdenetwork-debuginfo-4.10.5-8.el7_0.i686.rpm kdenetwork-debuginfo-4.10.5-8.el7_0.x86_64.rpm kdenetwork-fileshare-samba-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kopete-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kopete-devel-4.10.5-8.el7_0.i686.rpm kdenetwork-kopete-devel-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kopete-libs-4.10.5-8.el7_0.i686.rpm kdenetwork-kopete-libs-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krdc-devel-4.10.5-8.el7_0.i686.rpm kdenetwork-krdc-devel-4.10.5-8.el7_0.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: kdenetwork-4.10.5-8.el7_0.src.rpm noarch: kdenetwork-common-4.10.5-8.el7_0.noarch.rpm kdenetwork-devel-4.10.5-8.el7_0.noarch.rpm x86_64: kdenetwork-debuginfo-4.10.5-8.el7_0.i686.rpm kdenetwork-debuginfo-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kdnssd-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kget-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kget-libs-4.10.5-8.el7_0.i686.rpm kdenetwork-kget-libs-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kopete-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kopete-devel-4.10.5-8.el7_0.i686.rpm kdenetwork-kopete-devel-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kopete-libs-4.10.5-8.el7_0.i686.rpm kdenetwork-kopete-libs-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krdc-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krdc-devel-4.10.5-8.el7_0.i686.rpm kdenetwork-krdc-devel-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krdc-libs-4.10.5-8.el7_0.i686.rpm kdenetwork-krdc-libs-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krfb-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krfb-libs-4.10.5-8.el7_0.i686.rpm kdenetwork-krfb-libs-4.10.5-8.el7_0.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): x86_64: kdenetwork-4.10.5-8.el7_0.x86_64.rpm kdenetwork-debuginfo-4.10.5-8.el7_0.x86_64.rpm kdenetwork-fileshare-samba-4.10.5-8.el7_0.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: kdenetwork-4.10.5-8.el7_0.src.rpm noarch: kdenetwork-common-4.10.5-8.el7_0.noarch.rpm kdenetwork-devel-4.10.5-8.el7_0.noarch.rpm x86_64: kdenetwork-debuginfo-4.10.5-8.el7_0.i686.rpm kdenetwork-debuginfo-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kdnssd-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kget-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kget-libs-4.10.5-8.el7_0.i686.rpm kdenetwork-kget-libs-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kopete-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kopete-devel-4.10.5-8.el7_0.i686.rpm kdenetwork-kopete-devel-4.10.5-8.el7_0.x86_64.rpm kdenetwork-kopete-libs-4.10.5-8.el7_0.i686.rpm kdenetwork-kopete-libs-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krdc-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krdc-devel-4.10.5-8.el7_0.i686.rpm kdenetwork-krdc-devel-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krdc-libs-4.10.5-8.el7_0.i686.rpm kdenetwork-krdc-libs-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krfb-4.10.5-8.el7_0.x86_64.rpm kdenetwork-krfb-libs-4.10.5-8.el7_0.i686.rpm kdenetwork-krfb-libs-4.10.5-8.el7_0.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: kdenetwork-4.10.5-8.el7_0.x86_64.rpm kdenetwork-debuginfo-4.10.5-8.el7_0.x86_64.rpm kdenetwork-fileshare-samba-4.10.5-8.el7_0.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-2014-6053 https://access.redhat.com/security/cve/CVE-2014-6054 https://access.redhat.com/security/cve/CVE-2014-6055 https://access.redhat.com/security/updates/classification/#moderate https://rhn.redhat.com/errata/RHSA-2014-1826.html 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2014 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFUYoTzXlSAg2UNWIIRAjnqAKCqHsimfVovF6mK/2r+Lr/Rpoa5YACgvYLy 7LazKa5gL7gCyG5bdU0G1fg= =2wvT -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce