CVE-2019-19553 Null dereference in n/a

What is CVE-2019-19553?

CVE-2019-19553 is a high-severity vulnerability in Debian Debian Linux, published on 5 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Wireshark 3.0.0 to 3.0.6 and 2.6.0 to 2.6.12, the CMS dissector could crash. This was addressed in epan/dissectors/asn1/cms/packet-cms-template.c by ensuring that an object identifier is set to NULL after a ContentInfo dissection.

Weakness: CWE-909

Which versions are affected by CVE-2019-19553?

It affects 5 products.

Products include Debian Debian Linux, Opensuse Leap, Oracle Solaris, Oracle Zfs Storage Appliance, Wireshark Wireshark.

How do I fix CVE-2019-19553?

Apply the vendor's patch.

Is CVE-2019-19553 being exploited?

There is no known exploitation of CVE-2019-19553 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-2019-19553, GHSA-gr8p-66g9-4565, MGASA-2019-0384, UBUNTU-CVE-2019-19553.