CVE-2020-13396 Memory corruption in n/a

What is CVE-2020-13396?

CVE-2020-13396 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 22 May 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has been detected in ntlm_read_ChallengeMessage in winpr/libwinpr/sspi/NTLM/ntlm_message.c.

Weakness: CWE-125

Which versions are affected by CVE-2020-13396?

It affects 4 products.

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

How do I fix CVE-2020-13396?

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-2020-13396 being exploited?

There is no known exploitation of CVE-2020-13396 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-NO80619, DEBIAN-CVE-2020-13396, GHSA-5cv3-wf6w-ffmx, UBUNTU-CVE-2020-13396.