Security update for xrdp SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2020:1200-1 Final 1 1 2020-08-14T15:28:29Z current 2020-08-14T15:28:29Z 2020-08-14T15:28:29Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for xrdp This update for xrdp fixes the following issues: - Update to version 0.9.13.1 + This is a security fix release that includes fixes for the following local buffer overflow vulnerability (bsc#1173580): CVE-2020-4044 This update was imported from the SUSE:SLE-15-SP2:Update update project. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-2020-1200 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/R2LZ7GPOGYBOGEESSXWFJQM62NIRACWR/ E-Mail link for openSUSE-SU-2020:1200-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1173580 SUSE Bug 1173580 https://www.suse.com/security/cve/CVE-2020-4044/ SUSE CVE CVE-2020-4044 page openSUSE Leap 15.2 libpainter0-0.9.13.1-lp152.3.3.1 librfxencode0-0.9.13.1-lp152.3.3.1 xrdp-0.9.13.1-lp152.3.3.1 xrdp-devel-0.9.13.1-lp152.3.3.1 libpainter0-0.9.13.1-lp152.3.3.1 as a component of openSUSE Leap 15.2 librfxencode0-0.9.13.1-lp152.3.3.1 as a component of openSUSE Leap 15.2 xrdp-0.9.13.1-lp152.3.3.1 as a component of openSUSE Leap 15.2 xrdp-devel-0.9.13.1-lp152.3.3.1 as a component of openSUSE Leap 15.2 The xrdp-sesman service before version 0.9.13.1 can be crashed by connecting over port 3350 and supplying a malicious payload. Once the xrdp-sesman process is dead, an unprivileged attacker on the server could then proceed to start their own imposter sesman service listening on port 3350. This will allow them to capture any user credentials that are submitted to XRDP and approve or reject arbitrary login credentials. For xorgxrdp sessions in particular, this allows an unauthorized user to hijack an existing session. This is a buffer overflow attack, so there may be a risk of arbitrary code execution as well. CVE-2020-4044 openSUSE Leap 15.2:libpainter0-0.9.13.1-lp152.3.3.1 openSUSE Leap 15.2:librfxencode0-0.9.13.1-lp152.3.3.1 openSUSE Leap 15.2:xrdp-0.9.13.1-lp152.3.3.1 openSUSE Leap 15.2:xrdp-devel-0.9.13.1-lp152.3.3.1 important 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/R2LZ7GPOGYBOGEESSXWFJQM62NIRACWR/ https://www.suse.com/security/cve/CVE-2020-4044.html CVE-2020-4044 https://bugzilla.suse.com/1173580 SUSE Bug 1173580