CVE-2020-11521 Memory corruption in n/a

What is CVE-2020-11521?

CVE-2020-11521 is a medium-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 15 May 2020. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

libfreerdp/codec/planar.c in FreeRDP version > 1.0 through 2.0.0-rc4 has an Out-of-bounds Write.

Weakness: CWE-190, CWE-125

Which versions are affected by CVE-2020-11521?

It affects 4 products.

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

How do I fix CVE-2020-11521?

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-2020-11521 being exploited?

There is no known exploitation of CVE-2020-11521 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-TU64731, DEBIAN-CVE-2020-11521, GHSA-5cwc-6wc9-255w, UBUNTU-CVE-2020-11521.