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CVE-2017-2625

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-5690-1
Posted Oct 20, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5690-1 - It was discovered that libXdmcp was generating weak session keys. A local attacker could possibly use this issue to perform a brute force attack and obtain another user's key.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2017-2625
SHA-256 | 04525f2c5bc115f00e3bf47d63c9edcfe9814717972bea61532b8c3cb8ef02ef
Red Hat Security Advisory 2017-1865-01
Posted Aug 1, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1865-01 - The X11 libraries provide library routines that are used within all X Window applications. The following packages have been upgraded to a later upstream version: libX11, libXaw, libXdmcp, libXfixes, libXfont, libXi, libXpm, libXrandr, libXrender, libXt, libXtst, libXv, libXvMC, libXxf86vm, libdrm, libepoxy, libevdev, libfontenc, libvdpau, libwacom, libxcb, libxkbfile, mesa, mesa-private-llvm, xcb-proto, xkeyboard-config, xorg-x11-proto-devel.

tags | advisory
systems | linux, redhat
advisories | CVE-2016-10164, CVE-2017-2625, CVE-2017-2626
SHA-256 | 2454fbb7037ebbdc80b4a6947f9e13ee65e1806892b4a60080841fce649d6bdb
Gentoo Linux Security Advisory 201704-03
Posted Apr 11, 2017
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201704-3 - Multiple vulnerabilities have been found in X.Org server and libraries, the worse of which allowing local attackers to execute arbitrary code. Versions less than 1.19.2 are affected.

tags | advisory, arbitrary, local, vulnerability
systems | linux, gentoo
advisories | CVE-2016-5407, CVE-2016-7942, CVE-2016-7943, CVE-2016-7944, CVE-2016-7945, CVE-2016-7946, CVE-2016-7947, CVE-2016-7948, CVE-2016-7949, CVE-2016-7950, CVE-2016-7953, CVE-2017-2624, CVE-2017-2625, CVE-2017-2626
SHA-256 | b651dfb5c88b536bb774bed091405ef39ff35e25a8d671b35af02c5805d32f09
X.org Privilege Escalation / Use-After-Free / Weak Entropy
Posted Mar 1, 2017
Authored by Eric Sesterhenn

X.org suffers from privilege escalation, weak entropy, and use-after-free vulnerabilities.

tags | exploit, vulnerability
advisories | CVE-2017-2624, CVE-2017-2625, CVE-2017-2626
SHA-256 | f72f05abe9036269c3ae97121d5341b234d6db2cbe445c9d8643a82f22648e4d
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