CVE-2020-19189 Memory corruption in n/a

What is CVE-2020-19189?

CVE-2020-19189 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 22 Aug 2023. 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

Buffer Overflow vulnerability in postprocess_terminfo function in tinfo/parse_entry.c:997 in ncurses 6.1 allows remote attackers to cause a denial of service via crafted command.

Weakness: CWE-787

Which versions are affected by CVE-2020-19189?

It affects 3 products.

Products include Debian Debian Linux, Invisible-Island Ncurses, Netapp Active Iq Unified Manager.

How do I fix CVE-2020-19189?

Apply the vendor's patch.

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

Is CVE-2020-19189 being exploited?

There is no known exploitation of CVE-2020-19189 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-19189, DLA-3586-1, GHSA-gx38-wj66-8wfr, JLSEC-2026-449, UBUNTU-CVE-2020-19189, USN-6451-1.