ID CVE-2017-2625
Summary It was discovered that libXdmcp before 1.1.2 including used weak entropy to generate session keys. On a multi-user system using xdmcp, a local attacker could potentially use information available from the process list to brute force the key, allowing them to hijack other users' sessions.
References
Vulnerable Configurations
  • cpe:2.3:a:x.org:libxdmcp:1.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:x.org:libxdmcp:1.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:x.org:libxdmcp:1.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:x.org:libxdmcp:1.1.1:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
CVSS
Base: 2.1 (as of 09-10-2019 - 23:26)
Impact:
Exploitability:
CWE CWE-320
CAPEC
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL NONE NONE
cvss-vector via4 AV:L/AC:L/Au:N/C:P/I:N/A:N
redhat via4
advisories
rhsa
id RHSA-2017:1865
rpms
  • drm-utils-0:2.4.74-1.el7
  • libICE-0:1.0.9-9.el7
  • libICE-debuginfo-0:1.0.9-9.el7
  • libICE-devel-0:1.0.9-9.el7
  • libX11-0:1.6.5-1.el7
  • libX11-common-0:1.6.5-1.el7
  • libX11-debuginfo-0:1.6.5-1.el7
  • libX11-devel-0:1.6.5-1.el7
  • libXaw-0:1.0.13-4.el7
  • libXaw-debuginfo-0:1.0.13-4.el7
  • libXaw-devel-0:1.0.13-4.el7
  • libXcursor-0:1.1.14-8.el7
  • libXcursor-debuginfo-0:1.1.14-8.el7
  • libXcursor-devel-0:1.1.14-8.el7
  • libXdmcp-0:1.1.2-6.el7
  • libXdmcp-debuginfo-0:1.1.2-6.el7
  • libXdmcp-devel-0:1.1.2-6.el7
  • libXfixes-0:5.0.3-1.el7
  • libXfixes-debuginfo-0:5.0.3-1.el7
  • libXfixes-devel-0:5.0.3-1.el7
  • libXfont-0:1.5.2-1.el7
  • libXfont-debuginfo-0:1.5.2-1.el7
  • libXfont-devel-0:1.5.2-1.el7
  • libXfont2-0:2.0.1-2.el7
  • libXfont2-debuginfo-0:2.0.1-2.el7
  • libXfont2-devel-0:2.0.1-2.el7
  • libXi-0:1.7.9-1.el7
  • libXi-debuginfo-0:1.7.9-1.el7
  • libXi-devel-0:1.7.9-1.el7
  • libXpm-0:3.5.12-1.el7
  • libXpm-debuginfo-0:3.5.12-1.el7
  • libXpm-devel-0:3.5.12-1.el7
  • libXrandr-0:1.5.1-2.el7
  • libXrandr-debuginfo-0:1.5.1-2.el7
  • libXrandr-devel-0:1.5.1-2.el7
  • libXrender-0:0.9.10-1.el7
  • libXrender-debuginfo-0:0.9.10-1.el7
  • libXrender-devel-0:0.9.10-1.el7
  • libXt-0:1.1.5-3.el7
  • libXt-debuginfo-0:1.1.5-3.el7
  • libXt-devel-0:1.1.5-3.el7
  • libXtst-0:1.2.3-1.el7
  • libXtst-debuginfo-0:1.2.3-1.el7
  • libXtst-devel-0:1.2.3-1.el7
  • libXv-0:1.0.11-1.el7
  • libXv-debuginfo-0:1.0.11-1.el7
  • libXv-devel-0:1.0.11-1.el7
  • libXvMC-0:1.0.10-1.el7
  • libXvMC-debuginfo-0:1.0.10-1.el7
  • libXvMC-devel-0:1.0.10-1.el7
  • libXxf86vm-0:1.1.4-1.el7
  • libXxf86vm-debuginfo-0:1.1.4-1.el7
  • libXxf86vm-devel-0:1.1.4-1.el7
  • libdrm-0:2.4.74-1.el7
  • libdrm-debuginfo-0:2.4.74-1.el7
  • libdrm-devel-0:2.4.74-1.el7
  • libepoxy-0:1.3.1-1.el7
  • libepoxy-debuginfo-0:1.3.1-1.el7
  • libepoxy-devel-0:1.3.1-1.el7
  • libevdev-0:1.5.6-1.el7
  • libevdev-debuginfo-0:1.5.6-1.el7
  • libevdev-devel-0:1.5.6-1.el7
  • libevdev-utils-0:1.5.6-1.el7
  • libfontenc-0:1.1.3-3.el7
  • libfontenc-debuginfo-0:1.1.3-3.el7
  • libfontenc-devel-0:1.1.3-3.el7
  • libinput-0:1.6.3-2.el7
  • libinput-debuginfo-0:1.6.3-2.el7
  • libinput-devel-0:1.6.3-2.el7
  • libvdpau-0:1.1.1-3.el7
  • libvdpau-debuginfo-0:1.1.1-3.el7
  • libvdpau-devel-0:1.1.1-3.el7
  • libvdpau-docs-0:1.1.1-3.el7
  • libwacom-0:0.24-1.el7
  • libwacom-data-0:0.24-1.el7
  • libwacom-debuginfo-0:0.24-1.el7
  • libwacom-devel-0:0.24-1.el7
  • libxcb-0:1.12-1.el7
  • libxcb-debuginfo-0:1.12-1.el7
  • libxcb-devel-0:1.12-1.el7
  • libxcb-doc-0:1.12-1.el7
  • libxkbcommon-0:0.7.1-1.el7
  • libxkbcommon-debuginfo-0:0.7.1-1.el7
  • libxkbcommon-devel-0:0.7.1-1.el7
  • libxkbcommon-x11-0:0.7.1-1.el7
  • libxkbcommon-x11-devel-0:0.7.1-1.el7
  • libxkbfile-0:1.0.9-3.el7
  • libxkbfile-debuginfo-0:1.0.9-3.el7
  • libxkbfile-devel-0:1.0.9-3.el7
  • mesa-debuginfo-0:17.0.1-6.20170307.el7
  • mesa-dri-drivers-0:17.0.1-6.20170307.el7
  • mesa-filesystem-0:17.0.1-6.20170307.el7
  • mesa-libEGL-0:17.0.1-6.20170307.el7
  • mesa-libEGL-devel-0:17.0.1-6.20170307.el7
  • mesa-libGL-0:17.0.1-6.20170307.el7
  • mesa-libGL-devel-0:17.0.1-6.20170307.el7
  • mesa-libGLES-0:17.0.1-6.20170307.el7
  • mesa-libGLES-devel-0:17.0.1-6.20170307.el7
  • mesa-libOSMesa-0:17.0.1-6.20170307.el7
  • mesa-libOSMesa-devel-0:17.0.1-6.20170307.el7
  • mesa-libgbm-0:17.0.1-6.20170307.el7
  • mesa-libgbm-devel-0:17.0.1-6.20170307.el7
  • mesa-libglapi-0:17.0.1-6.20170307.el7
  • mesa-libxatracker-0:17.0.1-6.20170307.el7
  • mesa-libxatracker-devel-0:17.0.1-6.20170307.el7
  • mesa-private-llvm-0:3.9.1-3.el7
  • mesa-private-llvm-debuginfo-0:3.9.1-3.el7
  • mesa-private-llvm-devel-0:3.9.1-3.el7
  • mesa-vulkan-drivers-0:17.0.1-6.20170307.el7
  • vulkan-0:1.0.39.1-2.el7
  • vulkan-debuginfo-0:1.0.39.1-2.el7
  • vulkan-devel-0:1.0.39.1-2.el7
  • vulkan-filesystem-0:1.0.39.1-2.el7
  • xcb-proto-0:1.12-2.el7
  • xkeyboard-config-0:2.20-1.el7
  • xkeyboard-config-devel-0:2.20-1.el7
  • xorg-x11-proto-devel-0:7.7-20.el7
refmap via4
bid 96480
confirm
gentoo GLSA-201704-03
misc https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/
mlist [debian-lts-announce] 20191125 [SECURITY] [DLA 2006-1] libxdmcp security update
sectrack 1037919
Last major update 09-10-2019 - 23:26
Published 27-07-2018 - 18:29
Last modified 09-10-2019 - 23:26
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