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AUSCERT External Security Bulletin Redistribution
ESB-2019.2623
SUSE-SU-2019:1847-1 Security update for xrdp
16 July 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: xrdp
Publisher: SUSE
Operating System: SUSE
Impact/Access: Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-16927 CVE-2017-6967 CVE-2013-1430
Reference: ESB-2017.3081
Original Bulletin:
https://www.suse.com/support/update/announcement/2019/suse-su-20191847-1.html
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SUSE Security Update: Security update for xrdp
______________________________________________________________________________
Announcement ID: SUSE-SU-2019:1847-1
Rating: important
References: #1014524 #1015567 #1029912 #1060644 #1069591 #1090174
#1100453 #1101506
Cross-References: CVE-2013-1430 CVE-2017-16927 CVE-2017-6967
Affected Products:
SUSE Linux Enterprise Server 12-SP4
SUSE Linux Enterprise Desktop 12-SP4
______________________________________________________________________________
An update that solves three vulnerabilities and has 5 fixes is now available.
Description:
This update for xrdp fixes the following issues:
These security issues were fixed:
o CVE-2013-1430: When successfully logging in using RDP into an xrdp session,
the file ~/.vnc/sesman_${username}_passwd was created. Its content was the
equivalent of the user's cleartext password, DES encrypted with a known key
(bsc#1015567).
o CVE-2017-16927: The scp_v0s_accept function in sesman/libscp/libscp_v0.c in
the session manager in xrdp through used an untrusted integer as a write
length, which could lead to a local denial of service (bsc#1069591).
o CVE-2017-6967: Fixed call of the PAM function auth_start_session(). This
lead to to PAM session modules not being properly initialized, with a
potential consequence of incorrect configurations or elevation of
privileges, aka a pam_limits.so bypass (bsc#1029912).
These non-security issues were fixed:
o The KillDisconnected option for TigerVNC Xvnc sessions is now supported
(bsc#1101506)
o Fixed an issue with delayed X KeyRelease events (bsc#1100453)
o Force xrdp-sesman.service to start after xrdp.service. (bsc#1014524)
o Avoid use of hard-coded sesman port. (bsc#1060644)
o Fixed a regression connecting from Windows 10. (bsc#1090174)
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
o SUSE Linux Enterprise Server 12-SP4:
zypper in -t patch SUSE-SLE-SERVER-12-SP4-2019-1847=1
o SUSE Linux Enterprise Desktop 12-SP4:
zypper in -t patch SUSE-SLE-DESKTOP-12-SP4-2019-1847=1
Package List:
o SUSE Linux Enterprise Server 12-SP4 (aarch64 ppc64le s390x x86_64):
xrdp-0.9.0~git.1456906198.f422461-21.9.1
xrdp-debuginfo-0.9.0~git.1456906198.f422461-21.9.1
xrdp-debugsource-0.9.0~git.1456906198.f422461-21.9.1
o SUSE Linux Enterprise Desktop 12-SP4 (x86_64):
xrdp-0.9.0~git.1456906198.f422461-21.9.1
xrdp-debuginfo-0.9.0~git.1456906198.f422461-21.9.1
xrdp-debugsource-0.9.0~git.1456906198.f422461-21.9.1
References:
o https://www.suse.com/security/cve/CVE-2013-1430.html
o https://www.suse.com/security/cve/CVE-2017-16927.html
o https://www.suse.com/security/cve/CVE-2017-6967.html
o https://bugzilla.suse.com/1014524
o https://bugzilla.suse.com/1015567
o https://bugzilla.suse.com/1029912
o https://bugzilla.suse.com/1060644
o https://bugzilla.suse.com/1069591
o https://bugzilla.suse.com/1090174
o https://bugzilla.suse.com/1100453
o https://bugzilla.suse.com/1101506
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