Security update for xrdp

Announcement ID: SUSE-SU-2019:1847-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2013-1430 ( SUSE ): 3.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
  • CVE-2013-1430 ( NVD ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2017-16927 ( SUSE ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2017-16927 ( NVD ): 8.4 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2017-6967 ( SUSE ): 5.5 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
  • CVE-2017-6967 ( NVD ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
  • CVE-2017-6967 ( NVD ): 7.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Affected Products:
  • SUSE Linux Enterprise Desktop 12 SP4
  • SUSE Linux Enterprise High Performance Computing 12 SP4
  • SUSE Linux Enterprise Server 12 SP4
  • SUSE Linux Enterprise Server for SAP Applications 12 SP4

An update that solves three vulnerabilities and has five security fixes can now be installed.

Description:

This update for xrdp fixes the following issues:

These security issues were fixed:

  • 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).
  • 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).
  • 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:

  • The KillDisconnected option for TigerVNC Xvnc sessions is now supported (bsc#1101506)
  • Fixed an issue with delayed X KeyRelease events (bsc#1100453)
  • Force xrdp-sesman.service to start after xrdp.service. (bsc#1014524)
  • Avoid use of hard-coded sesman port. (bsc#1060644)
  • Fixed a regression connecting from Windows 10. (bsc#1090174)

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • SUSE Linux Enterprise Desktop 12 SP4
    zypper in -t patch SUSE-SLE-DESKTOP-12-SP4-2019-1847=1
  • SUSE Linux Enterprise High Performance Computing 12 SP4
    zypper in -t patch SUSE-SLE-SERVER-12-SP4-2019-1847=1
  • SUSE Linux Enterprise Server 12 SP4
    zypper in -t patch SUSE-SLE-SERVER-12-SP4-2019-1847=1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP4
    zypper in -t patch SUSE-SLE-SERVER-12-SP4-2019-1847=1

Package List:

  • SUSE Linux Enterprise Desktop 12 SP4 (x86_64)
    • xrdp-debugsource-0.9.0~git.1456906198.f422461-21.9.1
    • xrdp-0.9.0~git.1456906198.f422461-21.9.1
    • xrdp-debuginfo-0.9.0~git.1456906198.f422461-21.9.1
  • SUSE Linux Enterprise High Performance Computing 12 SP4 (aarch64 x86_64)
    • xrdp-debugsource-0.9.0~git.1456906198.f422461-21.9.1
    • xrdp-0.9.0~git.1456906198.f422461-21.9.1
    • xrdp-debuginfo-0.9.0~git.1456906198.f422461-21.9.1
  • SUSE Linux Enterprise Server 12 SP4 (aarch64 ppc64le s390x x86_64)
    • xrdp-debugsource-0.9.0~git.1456906198.f422461-21.9.1
    • xrdp-0.9.0~git.1456906198.f422461-21.9.1
    • xrdp-debuginfo-0.9.0~git.1456906198.f422461-21.9.1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP4 (ppc64le x86_64)
    • xrdp-debugsource-0.9.0~git.1456906198.f422461-21.9.1
    • xrdp-0.9.0~git.1456906198.f422461-21.9.1
    • xrdp-debuginfo-0.9.0~git.1456906198.f422461-21.9.1

References: