FreeRDP FreeRDP 2.0.0-rc3 released version before commit 205c612820dac644d665b5bb1cdf437dc5ca01e3 contains a Other/Unknown vulnerability in channels/drdynvc/client/drdynvc_main.c, drdynvc_process_capability_request that can result in The RDP server can read the client's memory.. This attack appear to be exploitable via RDPClient must connect the rdp server with echo option. This vulnerability appears to have been fixed in after commit 205c612820dac644d665b5bb1cdf437dc5ca01e3.

The remote Redhat Enterprise Linux 6 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - freerdp: Out-of-bounds write in nsc_rle_decode() function (CVE-2018-8788)

  - FreeRDP before 1.1.0-beta1 allows remote attackers to cause a denial of service (NULL pointer dereference     and application crash) via unspecified vectors. (CVE-2013-4118)

  - FreeRDP before 1.1.0-beta+2013071101 allows remote attackers to cause a denial of service (NULL pointer     dereference and application crash) by disconnecting before authentication has finished. (CVE-2013-4119)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

The remote Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2019-2157 advisory.

    freerdp     [2.0.0-1.rc4]
    - Update to 2.0.0-rc4 (#1291254)

    vinagre     [3.22.0-12]
    - Apply the patch
    - Resolves: #1569552

    [3.22.0-11]
    - Set maximum length of RDP password to 255 characters
    - Resolves: #1569552

    [3.22.0-10]
    - Make vinagre build with FreeRDP 2 library
    - Resolves: #1680229

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4379-1 advisory.

    It was discovered that FreeRDP incorrectly handled certain memory operations. A remote attacker could use     this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly exeucte arbitrary     code.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has freerdp packages installed that are affected by a vulnerability:

  - FreeRDP FreeRDP 2.0.0-rc3 released version before commit     205c612820dac644d665b5bb1cdf437dc5ca01e3 contains a     Other/Unknown vulnerability in     channels/drdynvc/client/drdynvc_main.c,     drdynvc_process_capability_request that can result in     The RDP server can read the client's memory.. This     attack appear to be exploitable via RDPClient must     connect the rdp server with echo option. This     vulnerability appears to have been fixed in after commit     205c612820dac644d665b5bb1cdf437dc5ca01e3.
    (CVE-2018-1000852)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the freerdp packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An exploitable code execution vulnerability exists in     the RDP receive functionality of FreeRDP     2.0.0-beta1+android11. A specially crafted server     response can cause an out-of-bounds write resulting in     an exploitable condition. An attacker can compromise     the server or use a man in the middle to trigger this     vulnerability.(CVE-2017-2835)

  - An exploitable denial of service vulnerability exists     within the handling of challenge packets in FreeRDP     2.0.0-beta1+android11. A specially crafted challenge     packet can cause the program termination leading to a     denial of service condition. An attacker can compromise     the server or use man in the middle to trigger this     vulnerability.(CVE-2017-2838)

  - An exploitable denial of service vulnerability exists     within the handling of challenge packets in FreeRDP     2.0.0-beta1+android11. A specially crafted challenge     packet can cause the program termination leading to a     denial of service condition. An attacker can compromise     the server or use man in the middle to trigger this     vulnerability.(CVE-2017-2839)

  - An exploitable denial of service vulnerability exists     within the handling of security data in FreeRDP     2.0.0-beta1+android11. A specially crafted challenge     packet can cause the program termination leading to a     denial of service condition. An attacker can compromise     the server or use man in the middle to trigger this     vulnerability.(CVE-2017-2837)

  - An exploitable denial of service vulnerability exists     within the reading of proprietary server certificates     in FreeRDP 2.0.0-beta1+android11. A specially crafted     challenge packet can cause the program termination     leading to a denial of service condition. An attacker     can compromise the server or use man in the middle to     trigger this vulnerability.(CVE-2017-2836)

  - FreeRDP FreeRDP 2.0.0-rc3 released version before     commit 205c612820dac644d665b5bb1cdf437dc5ca01e3     contains a Other/Unknown vulnerability in     channels/drdynvc/client/drdynvc_main.c,     drdynvc_process_capability_request that can result in     The RDP server can read the client's memory.. This     attack appear to be exploitable via RDPClient must     connect the rdp server with echo option. This     vulnerability appears to have been fixed in after     commit     205c612820dac644d665b5bb1cdf437dc5ca01e3.(CVE-2018-1000     852)

  - Integer overflow in the license_read_scope_list     function in libfreerdp/core/license.c in FreeRDP     through 1.0.2 allows remote RDP servers to cause a     denial of service (application crash) or possibly have     unspecified other impact via a large ScopeCount value     in a Scope List in a Server License Request     packet.(CVE-2014-0791)

  - Multiple integer overflows in client/X11/xf_graphics.c     in FreeRDP allow remote attackers to have an     unspecified impact via the width and height to the (1)     xf_Pointer_New or (2) xf_Bitmap_Decompress function,     which causes an incorrect amount of memory to be     allocated.(CVE-2014-0250)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the freerdp packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - FreeRDP before 1.1.0-beta+2013071101 allows remote     attackers to cause a denial of service (NULL pointer     dereference and application crash) by disconnecting     before authentication has finished.(CVE-2013-4119)

  - FreeRDP FreeRDP 2.0.0-rc3 released version before     commit 205c612820dac644d665b5bb1cdf437dc5ca01e3     contains a Other/Unknown vulnerability in     channels/drdynvc/client/drdynvc_main.c,     drdynvc_process_capability_request that can result in     The RDP server can read the client's memory.. This     attack appear to be exploitable via RDPClient must     connect the rdp server with echo option. This     vulnerability appears to have been fixed in after     commit     205c612820dac644d665b5bb1cdf437dc5ca01e3.(CVE-2018-1000     852)

  - FreeRDP before 1.1.0-beta1 allows remote attackers to     cause a denial of service (NULL pointer dereference and     application crash) via unspecified     vectors.(CVE-2013-4118)

  - Multiple integer overflows in client/X11/xf_graphics.c     in FreeRDP allow remote attackers to have an     unspecified impact via the width and height to the (1)     xf_Pointer_New or (2) xf_Bitmap_Decompress function,     which causes an incorrect amount of memory to be     allocated.(CVE-2014-0250)

  - Integer overflow in the license_read_scope_list     function in libfreerdp/core/license.c in FreeRDP     through 1.0.2 allows remote RDP servers to cause a     denial of service (application crash) or possibly have     unspecified other impact via a large ScopeCount value     in a Scope List in a Server License Request     packet.(CVE-2014-0791)

  - An exploitable code execution vulnerability exists in     the RDP receive functionality of FreeRDP     2.0.0-beta1+android11. A specially crafted server     response can cause an out-of-bounds write resulting in     an exploitable condition. An attacker can compromise     the server or use a man in the middle to trigger this     vulnerability.(CVE-2017-2835)

  - An exploitable denial of service vulnerability exists     within the reading of proprietary server certificates     in FreeRDP 2.0.0-beta1+android11. A specially crafted     challenge packet can cause the program termination     leading to a denial of service condition. An attacker     can compromise the server or use man in the middle to     trigger this vulnerability.(CVE-2017-2836)

  - An exploitable denial of service vulnerability exists     within the handling of security data in FreeRDP     2.0.0-beta1+android11. A specially crafted challenge     packet can cause the program termination leading to a     denial of service condition. An attacker can compromise     the server or use man in the middle to trigger this     vulnerability.(CVE-2017-2837)

  - An exploitable denial of service vulnerability exists     within the handling of challenge packets in FreeRDP     2.0.0-beta1+android11. A specially crafted challenge     packet can cause the program termination leading to a     denial of service condition. An attacker can compromise     the server or use man in the middle to trigger this     vulnerability.(CVE-2017-2838)

  - An exploitable denial of service vulnerability exists     within the handling of challenge packets in FreeRDP     2.0.0-beta1+android11. A specially crafted challenge     packet can cause the program termination leading to a     denial of service condition. An attacker can compromise     the server or use man in the middle to trigger this     vulnerability.(CVE-2017-2839)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

FreeRDP FreeRDP 2.0.0-rc3 released version before commit 205c612820dac644d665b5bb1cdf437dc5ca01e3 contains a Other/Unknown vulnerability in channels/drdynvc/client/drdynvc_main.c, drdynvc_process_capability_request that can result in The RDP server can read the client's memory.. This attack appear to be exploitable via RDPClient must connect the rdp server with echo option. This vulnerability appears to have been fixed in after commit 205c612820dac644d665b5bb1cdf437dc5ca01e3. (CVE-2018-1000852)

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has freerdp packages installed that are affected by a vulnerability:

  - FreeRDP FreeRDP 2.0.0-rc3 released version before commit     205c612820dac644d665b5bb1cdf437dc5ca01e3 contains a     Other/Unknown vulnerability in     channels/drdynvc/client/drdynvc_main.c,     drdynvc_process_capability_request that can result in     The RDP server can read the client's memory.. This     attack appear to be exploitable via RDPClient must     connect the rdp server with echo option. This     vulnerability appears to have been fixed in after commit     205c612820dac644d665b5bb1cdf437dc5ca01e3.
    (CVE-2018-1000852)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

An update for freerdp and vinagre is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link (s) in the References section.

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.

The vinagre packages provide the Vinagre remote desktop viewer for the GNOME desktop.

The following packages have been upgraded to a later upstream version:
freerdp (2.0.0). (BZ#1291254)

Security Fix(es) :

* freerdp: out of bounds read in drdynvc_process_capability_request (CVE-2018-1000852)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

The vinagre packages provide the Vinagre remote desktop viewer for the GNOME desktop.

The following packages have been upgraded to a later upstream version:
freerdp (2.0.0).

Security Fix(es) :

  - freerdp: out of bounds read in     drdynvc_process_capability_request (CVE-2018-1000852)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2019:2157 advisory.

    FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license.
    The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.

    The vinagre packages provide the Vinagre remote desktop viewer for the GNOME desktop.

    The following packages have been upgraded to a later upstream version: freerdp (2.0.0). (BZ#1291254)

    Security Fix(es):

    * freerdp: out of bounds read in drdynvc_process_capability_request (CVE-2018-1000852)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the freerdp packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - FreeRDP prior to version 2.0.0-rc4 contains a     Heap-Based Buffer Overflow in function     zgfx_decompress_segment() that results in a memory     corruption and probably even a remote code     execution.(CVE-2018-8784)

  - FreeRDP prior to version 2.0.0-rc4 contains a     Heap-Based Buffer Overflow in function     zgfx_decompress() that results in a memory corruption     and probably even a remote code     execution.(CVE-2018-8785)

  - FreeRDP prior to version 2.0.0-rc4 contains several     Out-Of-Bounds Reads in the NTLM Authentication module     that results in a Denial of Service     (segfault).(CVE-2018-8789)

  - FreeRDP FreeRDP 2.0.0-rc3 released version before     commit 205c612820dac644d665b5bb1cdf437dc5ca01e3     contains a Other/Unknown vulnerability in     channels/drdynvc/client/drdynvc_main.c,     drdynvc_process_capability_request that can result in     The RDP server can read the client's memory.. This     attack appear to be exploitable via RDPClient must     connect the rdp server with echo     option.(CVE-2018-1000852)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for freerdp to version 2.0.0~rc4 fixes the following issues :

Security issues fixed :

  - CVE-2018-0886: Fix a remote code execution vulnerability     (CredSSP) (bsc#1085416, bsc#1087240, bsc#1104918)

  - CVE-2018-8789: Fix several denial of service     vulnerabilities in the in the NTLM Authentication module     (bsc#1117965)

  - CVE-2018-8785: Fix a potential remote code execution     vulnerability in the zgfx_decompress function     (bsc#1117967)

  - CVE-2018-8786: Fix a potential remote code execution     vulnerability in the update_read_bitmap_update function     (bsc#1117966)

  - CVE-2018-8787: Fix a potential remote code execution     vulnerability in the gdi_Bitmap_Decompress function     (bsc#1117964)

  - CVE-2018-8788: Fix a potential remote code execution     vulnerability in the nsc_rle_decode function     (bsc#1117963)

  - CVE-2018-8784: Fix a potential remote code execution     vulnerability in the zgfx_decompress_segment function     (bsc#1116708)

  - CVE-2018-1000852: Fixed a remote memory access in the     drdynvc_process_capability_request function     (bsc#1120507)

Other issues :

  - Upgraded to version 2.0.0-rc4 (FATE#326739)

  - Security and stability improvements, including     bsc#1103557 and bsc#1112028

  - gateway: multiple fixes and improvements

  - client/X11: support for rail (remote app) icons was     added

  - The licensing code was re-worked: Per-device licenses     are now saved on the client and used on re-connect:
    WARNING: this is a change in FreeRDP behavior regarding     licensing. If the old behavior is required, or no     licenses should be saved use the new command line option     +old-license (gh#/FreeRDP/FreeRDP#4979)

  - Improved order handling - only orders that were enable     during capability exchange are accepted. WARNING and     NOTE: some servers do improperly send orders that     weren't negotiated, for such cases the new command line     option /relax-order-checks was added to disable the     strict order checking. If connecting to xrdp the options     /relax-order-checks *and* +glyph-cache are required.
    (gh#/FreeRDP/FreeRDP#4926)

  - Fixed automount issues

  - Fixed several audio and microphone related issues

  - Fixed X11 Right-Ctrl ungrab feature

  - Fixed race condition in rdpsnd channel server.

  - Disabled SSE2 for ARM and powerpc

This update was imported from the SUSE:SLE-15:Update update project.

This update for freerdp to version 2.0.0~rc4 fixes the following issues :

Security issues fixed :

CVE-2018-0886: Fix a remote code execution vulnerability (CredSSP) (bsc#1085416, bsc#1087240, bsc#1104918)

CVE-2018-8789: Fix several denial of service vulnerabilities in the in the NTLM Authentication module (bsc#1117965)

CVE-2018-8785: Fix a potential remote code execution vulnerability in the zgfx_decompress function (bsc#1117967)

CVE-2018-8786: Fix a potential remote code execution vulnerability in the update_read_bitmap_update function (bsc#1117966)

CVE-2018-8787: Fix a potential remote code execution vulnerability in the gdi_Bitmap_Decompress function (bsc#1117964)

CVE-2018-8788: Fix a potential remote code execution vulnerability in the nsc_rle_decode function (bsc#1117963)

CVE-2018-8784: Fix a potential remote code execution vulnerability in the zgfx_decompress_segment function (bsc#1116708)

CVE-2018-1000852: Fixed a remote memory access in the drdynvc_process_capability_request function (bsc#1120507)

Other issues: Upgraded to version 2.0.0-rc4 (FATE#326739)

Security and stability improvements, including bsc#1103557 and bsc#1112028

gateway: multiple fixes and improvements

client/X11: support for rail (remote app) icons was added

The licensing code was re-worked: Per-device licenses are now saved on the client and used on re-connect: WARNING: this is a change in FreeRDP behavior regarding licensing. If the old behavior is required, or no licenses should be saved use the new command line option +old-license (gh#/FreeRDP/FreeRDP#4979)

Improved order handling - only orders that were enable during capability exchange are accepted. WARNING and NOTE: some servers do improperly send orders that weren't negotiated, for such cases the new command line option /relax-order-checks was added to disable the strict order checking. If connecting to xrdp the options /relax-order-checks

*and* +glyph-cache are required. (gh#/FreeRDP/FreeRDP#4926)

Fixed automount issues

Fixed several audio and microphone related issues

Fixed X11 Right-Ctrl ungrab feature

Fixed race condition in rdpsnd channel server.

Disabled SSE2 for ARM and powerpc

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

FreeRDP fix for CVE-2018-1000852, Remmina bugfix update and rebuilds for updated FreeRDP.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for freerdp fixes the following issues :

Security issues fixed :

  - CVE-2018-0886: Fix a remote code execution vulnerability     (CredSSP) (bsc#1085416, bsc#1087240, bsc#1104918)

  - CVE-2018-8789: Fix several denial of service     vulnerabilities in the in the NTLM Authentication module     (bsc#1117965)

  - CVE-2018-8785: Fix a potential remote code execution     vulnerability in the zgfx_decompress function     (bsc#1117967)

  - CVE-2018-8786: Fix a potential remote code execution     vulnerability in the update_read_bitmap_update function     (bsc#1117966)

  - CVE-2018-8787: Fix a potential remote code execution     vulnerability in the gdi_Bitmap_Decompress function     (bsc#1117964)

  - CVE-2018-8788: Fix a potential remote code execution     vulnerability in the nsc_rle_decode function     (bsc#1117963)

  - CVE-2018-8784: Fix a potential remote code execution     vulnerability in the zgfx_decompress_segment function     (bsc#1116708)

  - CVE-2018-1000852: Fixed a remote memory access in the     drdynvc_process_capability_request function     (bsc#1120507)

This update was imported from the SUSE:SLE-12-SP2:Update update project.

This update for freerdp fixes the following issues :

Security issues fixed :

CVE-2018-0886: Fix a remote code execution vulnerability (CredSSP) (bsc#1085416, bsc#1087240, bsc#1104918)

CVE-2018-8789: Fix several denial of service vulnerabilities in the in the NTLM Authentication module (bsc#1117965)

CVE-2018-8785: Fix a potential remote code execution vulnerability in the zgfx_decompress function (bsc#1117967)

CVE-2018-8786: Fix a potential remote code execution vulnerability in the update_read_bitmap_update function (bsc#1117966)

CVE-2018-8787: Fix a potential remote code execution vulnerability in the gdi_Bitmap_Decompress function (bsc#1117964)

CVE-2018-8788: Fix a potential remote code execution vulnerability in the nsc_rle_decode function (bsc#1117963)

CVE-2018-8784: Fix a potential remote code execution vulnerability in the zgfx_decompress_segment function (bsc#1116708)

CVE-2018-1000852: Fixed a remote memory access in the drdynvc_process_capability_request function (bsc#1120507)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
199389	RHEL 6 : freerdp (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
180861	Oracle Linux 7 : freerdp / and / vinagre (ELSA-2019-2157)	Nessus	Oracle Linux Local Security Checks	medium
137045	Ubuntu 18.04 LTS / 20.04 LTS : FreeRDP vulnerabilities (USN-4379-1)	Nessus	Ubuntu Local Security Checks	high
132433	NewStart CGSL CORE 5.05 / MAIN 5.05 : freerdp Vulnerability (NS-SA-2019-0255)	Nessus	NewStart CGSL Local Security Checks	medium
132297	EulerOS 2.0 SP3 : freerdp (EulerOS-SA-2019-2580)	Nessus	Huawei Local Security Checks	high
131609	EulerOS 2.0 SP2 : freerdp (EulerOS-SA-2019-2455)	Nessus	Huawei Local Security Checks	high
131234	Amazon Linux 2 : freerdp (ALAS-2019-1365)	Nessus	Amazon Linux Local Security Checks	medium
129918	NewStart CGSL CORE 5.04 / MAIN 5.04 : freerdp Vulnerability (NS-SA-2019-0204)	Nessus	NewStart CGSL Local Security Checks	medium
128366	CentOS 7 : freerdp / vinagre (CESA-2019:2157)	Nessus	CentOS Local Security Checks	medium
128218	Scientific Linux Security Update : freerdp and vinagre on SL7.x x86_64 (20190806)	Nessus	Scientific Linux Local Security Checks	medium
127686	RHEL 7 : freerdp and vinagre (RHSA-2019:2157)	Nessus	Red Hat Local Security Checks	medium
126273	EulerOS 2.0 SP8 : freerdp (EulerOS-SA-2019-1646)	Nessus	Huawei Local Security Checks	critical
122847	openSUSE Security Update : freerdp (openSUSE-2019-325)	Nessus	SuSE Local Security Checks	critical
122608	SUSE SLED15 / SLES15 Security Update : freerdp (SUSE-SU-2019:0539-1)	Nessus	SuSE Local Security Checks	critical
122568	Fedora 29 : 2:freerdp / gnome-boxes / pidgin-sipe / remmina (2019-e3b2885a25)	Nessus	Fedora Local Security Checks	critical
121462	openSUSE Security Update : freerdp (openSUSE-2019-96)	Nessus	SuSE Local Security Checks	critical
121302	SUSE SLED12 Security Update : freerdp (SUSE-SU-2019:0134-1)	Nessus	SuSE Local Security Checks	critical

Detections

Analytics

CVE-2018-1000852

medium

Tenable Plugins

critical

medium

high

medium

high

high

medium

medium

medium

medium

medium

critical

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critical

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critical

critical