CVE-2020-11048 Out-of-bounds Read in FreeRDPrdp_read_flow_control_pdu

What is CVE-2020-11048?

CVE-2020-11048 is a low-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 7 May 2020. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

In FreeRDP after 1.0 and before 2.0.0, there is an out-of-bounds read. It only allows to abort a session. No data extraction is possible. This has been fixed in 2.0.0.

Weakness: CWE-125

Which versions are affected by CVE-2020-11048?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Freerdp Freerdp.

How do I fix CVE-2020-11048?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2020-11048 being exploited?

There is no known exploitation of CVE-2020-11048 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 DEBIAN-CVE-2020-11048, GHSA-hv8w-f2hx-5gcv, UBUNTU-CVE-2020-11048.