CVE-2018-8786 Integer overflow in FreeRDP

What is CVE-2018-8786?

CVE-2018-8786 is a critical vulnerability in Canonical Ubuntu Linux, published on 29 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-787, CWE-681, CWE-680

Which versions are affected by CVE-2018-8786?

It affects 10 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Freerdp Freerdp, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server and 4 more.

How do I fix CVE-2018-8786?

Upgrade to a fixed version.

Is CVE-2018-8786 being exploited?

There is no known exploitation of CVE-2018-8786 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as CLEANSTART-2024-LP07177, DEBIAN-CVE-2018-8786, GHSA-2pjf-gmmm-fv82, UBUNTU-CVE-2018-8786.