CVE-2019-20503 Memory corruption in n/a

What is CVE-2019-20503?

CVE-2019-20503 is a medium-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 6 Mar 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

usrsctp before 2019-12-20 has out-of-bounds reads in sctp_load_addresses_from_init.

Weakness: CWE-125

Which versions are affected by CVE-2019-20503?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Usrsctp Project Usrsctp.

How do I fix CVE-2019-20503?

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-2019-20503 being exploited?

There is no known exploitation of CVE-2019-20503 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 AZL-35345, AZL-9920, DEBIAN-CVE-2019-20503, DLA-3481-1, GHSA-48ww-7497-cmhw, UBUNTU-CVE-2019-20503.