CVE-2018-8786
CRITICALCVSS 9.8/10EPSS 8.16%
Last modified
CVE-2018-8786 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 8.16% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Freerdp | Freerdp | <= 1.2.0 | — |
| Freerdp | Freerdp | 2.0.0 | Rc1 |
| Canonical | Ubuntu Linux | 14.04 | — |
| Canonical | Ubuntu Linux | 16.04 | — |
| Canonical | Ubuntu Linux | 18.04 | — |
| Canonical | Ubuntu Linux | 18.10 | — |
| Debian | Debian Linux | 8.0 | — |
| Fedoraproject | Fedora | 28 | — |
| Redhat | Enterprise Linux Desktop | 7.0 | — |
| Redhat | Enterprise Linux Server | 7.0 | — |
| Redhat | Enterprise Linux Server Aus | 7.6 | — |
| Redhat | Enterprise Linux Server Eus | 7.6 | — |
| Redhat | Enterprise Linux Server Tus | 7.6 | — |
| Redhat | Enterprise Linux Workstation | 7.0 | — |
References
- http://www.securityfocus.com/bid/106938Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:0697Third Party Advisory
- https://github.com/FreeRDP/FreeRDP/commit/445a5a42c500ceb80f8fa7f2c11f3682538033f3Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00015.htmlMailing List, Third Party Advisory
- https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/Exploit, Third Party Advisory
- https://usn.ubuntu.com/3845-1/Third Party Advisory
- https://usn.ubuntu.com/3845-2/Third Party Advisory
- http://www.securityfocus.com/bid/106938Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:0697Third Party Advisory
- https://github.com/FreeRDP/FreeRDP/commit/445a5a42c500ceb80f8fa7f2c11f3682538033f3Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00015.htmlMailing List, Third Party Advisory
- https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/Exploit, Third Party Advisory
- https://usn.ubuntu.com/3845-1/Third Party Advisory
- https://usn.ubuntu.com/3845-2/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-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 results in a memory corruption and probably even a remote code execution.
How severe is CVE-2018-8786?
CVE-2018-8786 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 8.16% probability of exploitation in the next 30 days.
How do I fix CVE-2018-8786?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2018
- CVE-2018-8778In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.…
- CVE-2018-8779In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.…
- CVE-2018-8780In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.…
- CVE-2018-8781The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c at …7.8
- CVE-2018-8784FreeRDP prior to version 2.0.0-rc4 contains a Heap-Based Buf…9.8
- CVE-2018-8785FreeRDP prior to version 2.0.0-rc4 contains a Heap-Based Buf…9.8
- CVE-2018-8787FreeRDP prior to version 2.0.0-rc4 contains an Integer Overf…9.8
- CVE-2018-8788FreeRDP prior to version 2.0.0-rc4 contains an Out-Of-Bounds…
- CVE-2018-8789FreeRDP prior to version 2.0.0-rc4 contains several Out-Of-B…
- CVE-2018-8790Check Point ZoneAlarm version 15.3.064.17729 and below expos…
- CVE-2018-8791rdesktop versions up to and including v1.8.3 contain an Out-…
- CVE-2018-8792rdesktop versions up to and including v1.8.3 contain an Out-…
Are you affected by CVE-2018-8786?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST