CVE-2022-31291 Use after free in n/a

What is CVE-2022-31291?

CVE-2022-31291 is a high-severity use after free vulnerability in Debian Debian Linux, published on 16 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue in dlt_config_file_parser.c of dlt-daemon v2.18.8 allows attackers to cause a double free via crafted TCP packets.

Weakness: CWE-415

Which versions are affected by CVE-2022-31291?

It affects 2 products.

Products include Debian Debian Linux, Genivi Diagnostic Log and Trace.

How do I fix CVE-2022-31291?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2022-31291 being exploited?

There is no known exploitation of CVE-2022-31291 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-2022-31291, GHSA-5569-pg4r-25pv, UBUNTU-CVE-2022-31291.