CVE-2020-11046 Improper Restriction of Operations within the Bounds of a Memory Buffer in FreeRDP

What is CVE-2020-11046?

CVE-2020-11046 is a medium-severity memory corruption 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 a stream out-of-bounds seek in update_read_synchronize that could lead to a later out-of-bounds read.

Weakness: CWE-125, CWE-119

Which versions are affected by CVE-2020-11046?

It affects 3 products.

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

How do I fix CVE-2020-11046?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-11046 being exploited?

There is no known exploitation of CVE-2020-11046 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-2020-11046, GHSA-hx48-wmmm-mr5q, UBUNTU-CVE-2020-11046.