CVE-2018-8786
published 2018-11-29CVE-2018-8786: FreeRDP prior to version 2.0.0-rc4 contains an Integer Truncation that leads to a Heap-Based Buffer Overflow in function update_read_bitmap_update() and…
PriorityP355critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
8.16%
94.2th percentile
FreeRDP prior to version 2.0.0-rc4 contains an Integer Truncation that leads to a Heap-Based Buffer Overflow in function update_read_bitmap_update() and results in a memory corruption and probably even a remote code execution.
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| check_point_software_technologies_ltd | freerdp | — | — |
| debian | debian_linux | — | — |
| debian | freerdp2 | < freerdp2 2.0.0~git20181120.1.e21b72c95+dfsg1-1 (bookworm) | freerdp2 2.0.0~git20181120.1.e21b72c95+dfsg1-1 (bookworm) |
| fedoraproject | fedora | — | — |
| freerdp | freerdp | <= 1.2.0 | — |
| freerdp | freerdp | — | — |
| freerdp | freerdp | — | — |
| freerdp | freerdp | — | — |
| freerdp | freerdp | >= 0 < 1.0.2-2ubuntu1.2 | 1.0.2-2ubuntu1.2 |
| freerdp | freerdp | >= 0 < 1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3 | 1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3 |
| freerdp | freerdp | >= 0 < 1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.1 | 1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.1 |
| redhat | enterprise_linux_desktop | — | — |
| redhat | enterprise_linux_server | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_eus | — | — |
| redhat | enterprise_linux_server_tus | — | — |
| redhat | enterprise_linux_workstation | — | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
osv9.8CRITICAL
vendor_debian9.8CRITICAL
vendor_redhat9.8CRITICAL
vendor_ubuntu9.8CRITICAL
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GHSA
GHSA-2pjf-gmmm-fv82: FreeRDP prior to version 2
ghsa_unreviewed·2022-05-13
CVE-2018-8786 [CRITICAL] CWE-787 GHSA-2pjf-gmmm-fv82: FreeRDP prior to version 2
FreeRDP prior to version 2.0.0-rc4 contains an Integer Truncation that leads to a Heap-Based Buffer Overflow in function update_read_bitmap_update() and results in a memory corruption and probably even a remote code execution.
OSV
freerdp vulnerabilities
osv·2019-05-28·CVSS 9.8
CVE-2018-8784 [CRITICAL] freerdp vulnerabilities
freerdp vulnerabilities
USN-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 encoding
OSV
freerdp, freerdp2 vulnerabilities
osv·2018-12-12·CVSS 9.8
CVE-2018-8784 [CRITICAL] freerdp, freerdp2 vulnerabilities
freerdp, freerdp2 vulnerabilities
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 a
OSV
CVE-2018-8786: FreeRDP prior to version 2
osv·2018-11-29·CVSS 9.8
CVE-2018-8786 [CRITICAL] CVE-2018-8786: FreeRDP prior to version 2
FreeRDP prior to version 2.0.0-rc4 contains an Integer Truncation that leads to a Heap-Based Buffer Overflow in function update_read_bitmap_update() and results in a memory corruption and probably even a remote code execution.
Ubuntu
FreeRDP vulnerabilities
vendor_ubuntu·2019-05-28·CVSS 9.8
CVE-2018-8786 [CRITICAL] FreeRDP vulnerabilities
Title: FreeRDP vulnerabilities
Summary: Several security issues were fixed in FreeRDP.
USN-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 Itki
Ubuntu
FreeRDP vulnerabilities
vendor_ubuntu·2018-12-12·CVSS 9.8
CVE-2018-8784 [CRITICAL] FreeRDP vulnerabilities
Title: FreeRDP vulnerabilities
Summary: Several security issues were fixed in FreeRDP.
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,
Red Hat
freerdp: Integer truncation leading to heap-based buffer overflow in update_read_bitmap_update() function
vendor_redhat·2018-10-22·CVSS 9.8
CVE-2018-8786 [CRITICAL] CWE-119 freerdp: Integer truncation leading to heap-based buffer overflow in update_read_bitmap_update() function
freerdp: Integer truncation leading to heap-based buffer overflow in update_read_bitmap_update() function
FreeRDP prior to version 2.0.0-rc4 contains an Integer Truncation that leads to a Heap-Based Buffer Overflow in function update_read_bitmap_update() and results in a memory corruption and probably even a remote code execution.
A flaw was found in freerdp in versions prior to version 2.0.0-rc4. An integer truncation that leads to a heap-based buffer overflow in the update_read_bitmap_update() function results in a memory corruption. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Package: freerdp (Red Hat Enterprise Linux 6) - Will not fix
Package: freerdp (Red Hat Enterprise Linux 8) - Not affected
Debian
CVE-2018-8786: freerdp2 - FreeRDP prior to version 2.0.0-rc4 contains an Integer Truncation that leads to ...
vendor_debian·2018·CVSS 9.8
CVE-2018-8786 [CRITICAL] CVE-2018-8786: freerdp2 - FreeRDP prior to version 2.0.0-rc4 contains an Integer Truncation that leads to ...
FreeRDP prior to version 2.0.0-rc4 contains an Integer Truncation that leads to a Heap-Based Buffer Overflow in function update_read_bitmap_update() and results in a memory corruption and probably even a remote code execution.
Scope: local
bookworm: resolved (fixed in 2.0.0~git20181120.1.e21b72c95+dfsg1-1)
bullseye: resolved (fixed in 2.0.0~git20181120.1.e21b72c95+dfsg1-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-8786 freerdp: Integer truncation leading to heap-based buffer overflow in update_read_bitmap_update() function [fedora-all]
bugzilla·2019-02-28·CVSS 9.8
CVE-2018-8786 [CRITICAL] CVE-2018-8786 freerdp: Integer truncation leading to heap-based buffer overflow in update_read_bitmap_update() function [fedora-all]
CVE-2018-8786 freerdp: Integer truncation leading to heap-based buffer overflow in update_read_bitmap_update() function [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message
Bugzilla
CVE-2018-8786 freerdp: Integer truncation leading to heap-based buffer overflow in update_read_bitmap_update() function
bugzilla·2019-01-31·CVSS 9.8
CVE-2018-8786 [CRITICAL] CVE-2018-8786 freerdp: Integer truncation leading to heap-based buffer overflow in update_read_bitmap_update() function
CVE-2018-8786 freerdp: Integer truncation leading to heap-based buffer overflow in update_read_bitmap_update() function
FreeRDP prior to version 2.0.0-rc4 contains an Integer Truncation that leads to a Heap-Based Buffer Overflow in function update_read_bitmap_update() and results in a memory corruption.
Upstream patch:
https://github.com/FreeRDP/FreeRDP/commit/445a5a42c500ceb80f8fa7f2c11f3682538033f3
Discussion:
Created freerdp tracking bugs for this issue:
Affects: epel-6 [bug 1671370]
---
The attacker needs to either hijack the communication between a FreeRDP client and a valid server or he needs to compromise a server for the attack to be successful.
---
The memory corruption in update_read_bitmap_update() can be used to make the FreeRDP application crash or to execute arbitra
Bugzilla
CVE-2018-8784 CVE-2018-8785 CVE-2018-8786 CVE-2018-8787 CVE-2018-8788 CVE-2018-8789 freerdp: various flaws [epel-6]
bugzilla·2019-01-31·CVSS 9.8
CVE-2018-8784 [CRITICAL] CVE-2018-8784 CVE-2018-8785 CVE-2018-8786 CVE-2018-8787 CVE-2018-8788 CVE-2018-8789 freerdp: various flaws [epel-6]
CVE-2018-8784 CVE-2018-8785 CVE-2018-8786 CVE-2018-8787 CVE-2018-8788 CVE-2018-8789 freerdp: various flaws [epel-6]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-6.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
Discussion:
Use t
Checkpoint
Would you like some RCE with your Guacamole?
blogs_checkpoint·2020-07-02
CVE-2018-8786 Would you like some RCE with your Guacamole?
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## Would you like some RCE with your Guacamole?
Research by: Eyal Itkin
## Overview
In many companies, the daily routine involves coming to the office each day to work on your company com
Checkpoint
Reverse RDP Attack: Code Execution on RDP Clients
blogs_checkpoint·2019-02-05·CVSS 8.0
CVE-2019-0887 [HIGH] Reverse RDP Attack: Code Execution on RDP Clients
Latest Publications
CPR Podcast Channel
AI Research
Web 3.0 Security
Intelligence Reports
ThreatCloud AI
Threat Intelligence & Research
Zero Day Protection
Sandblast File Analysis
About Us
SUBSCRIBE
AI Research 2
Android Malware 23
Artificial Intelligence 4
ChatGPT 3
Check Point Research Publications 455
Cloud Security 1
CPRadio 44
Crypto 2
Data & Threat Intelligence 2
Data Analysis 0
Demos 22
Global Cyber Attack Reports 408
How To Guides 13
Ransomware 5
Russo-Ukrainian War 1
Security Report 1
Threat and data analysis 0
Threat Research 174
Web 3.0 Security 11
Wipers 0
## Reverse RDP Attack: Code Execution on RDP Clients
Research by: Eyal Itkin
Overview
Used by thousands of IT professionals and security researchers worldwide, the Remote Desktop Protocol (R
http://www.securityfocus.com/bid/106938https://access.redhat.com/errata/RHSA-2019:0697https://github.com/FreeRDP/FreeRDP/commit/445a5a42c500ceb80f8fa7f2c11f3682538033f3https://lists.debian.org/debian-lts-announce/2019/02/msg00015.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YVJKO2DR5EY4C4QZOP7SNNBEW2JW6FHX/https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/https://usn.ubuntu.com/3845-1/https://usn.ubuntu.com/3845-2/http://www.securityfocus.com/bid/106938https://access.redhat.com/errata/RHSA-2019:0697https://github.com/FreeRDP/FreeRDP/commit/445a5a42c500ceb80f8fa7f2c11f3682538033f3https://lists.debian.org/debian-lts-announce/2019/02/msg00015.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YVJKO2DR5EY4C4QZOP7SNNBEW2JW6FHX/https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/https://usn.ubuntu.com/3845-1/https://usn.ubuntu.com/3845-2/
2018-11-29
Published