Vulnerabilities > CVE-2018-8784 - Out-of-bounds Write vulnerability in multiple products

047910
CVSS 9.8 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
freerdp
canonical
CWE-787
critical
nessus
NVD
Published: 2018-11-29
Updated: 2024-11-21

Summary

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.

Vulnerable Configurations

Part Description Count
Application
Freerdp
20
OS
Canonical
2

Common Weakness Enumeration (CWE)

Nessus

  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2019-0539-1.NASL
    descriptionThis 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
    last seen2020-06-01
    modified2020-06-02
    plugin id122608
    published2019-03-05
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/122608
    titleSUSE SLED15 / SLES15 Security Update : freerdp (SUSE-SU-2019:0539-1)
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2019-96.NASL
    descriptionThis 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.
    last seen2020-03-18
    modified2019-01-30
    plugin id121462
    published2019-01-30
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/121462
    titleopenSUSE Security Update : freerdp (openSUSE-2019-96)
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2019-325.NASL
    descriptionThis 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
    last seen2020-06-01
    modified2020-06-02
    plugin id122847
    published2019-03-14
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/122847
    titleopenSUSE Security Update : freerdp (openSUSE-2019-325)
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2019-1646.NASL
    descriptionAccording 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
    last seen2020-05-03
    modified2019-06-27
    plugin id126273
    published2019-06-27
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/126273
    titleEulerOS 2.0 SP8 : freerdp (EulerOS-SA-2019-1646)
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3845-2.NASL
    descriptionUSN-3845-1 fixed several vulnerabilities in FreeRDP. This update provides the corresponding update for Ubuntu 18.04 LTS and Ubuntu 18.10. Original advisory details : Eyal Itkin discovered FreeRDP incorrectly handled certain stream encodings. A malicious server could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applies to Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-8784, CVE-2018-8785) Eyal Itkin discovered FreeRDP incorrectly handled bitmaps. A malicious server could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2018-8786, CVE-2018- 8787) Eyal Itkin discovered FreeRDP incorrectly handled certain stream encodings. A malicious server could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applies to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018- 8788) Eyal Itkin discovered FreeRDP incorrectly handled NTLM authentication. A malicious server could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applies to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018- 8789). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id125542
    published2019-05-29
    reporterUbuntu Security Notice (C) 2019-2020 Canonical, Inc. / NASL script (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/125542
    titleUbuntu 18.04 LTS / 18.10 : FreeRDP vulnerabilities (USN-3845-2)
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3845-1.NASL
    descriptionEyal Itkin discovered FreeRDP incorrectly handled certain stream encodings. A malicious server could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applies to Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-8784, CVE-2018-8785) Eyal Itkin discovered FreeRDP incorrectly handled bitmaps. A malicious server could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2018-8786, CVE-2018-8787) Eyal Itkin discovered FreeRDP incorrectly handled certain stream encodings. A malicious server could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applies to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-8788) Eyal Itkin discovered FreeRDP incorrectly handled NTLM authentication. A malicious server could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applies to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-8789). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-04-10
    modified2018-12-13
    plugin id119655
    published2018-12-13
    reporterUbuntu Security Notice (C) 2018-2020 Canonical, Inc. / NASL script (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/119655
    titleUbuntu 14.04 LTS : freerdp, freerdp2 vulnerabilities (USN-3845-1)
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2019-0134-1.NASL
    descriptionThis 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.
    last seen2020-03-18
    modified2019-01-22
    plugin id121302
    published2019-01-22
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/121302
    titleSUSE SLED12 Security Update : freerdp (SUSE-SU-2019:0134-1)

References