Vulnerability · Published Oct 24, 2022 · Assigned by mitre
CVE-2022-39837
Medium 5.5
In plain English
A medium-severity null pointer dereference in the dlt-daemon package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.5%top 60.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
An issue was discovered in Connected Vehicle Systems Alliance (COVESA) dlt-daemon through 2.18.8. Due to a faulty DLT file parser, a crafted DLT file that crashes the process can be created. This is due to missing validation checks. There is a NULL pointer dereference,
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | dlt-daemon | no fix listed | DEBIAN-CVE-2022-39837 |
| Debian:13 | dlt-daemon | 2.18.9-1 | DEBIAN-CVE-2022-39837 |
| Debian:14 | dlt-daemon | 2.18.9-1 | DEBIAN-CVE-2022-39837 |
| Ubuntu:22.04:LTS | dlt-daemon | no fix listed | UBUNTU-CVE-2022-39837 |
Affected products (as reported)
Weakness: CWE-476 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H