CVE-2021-29507 dlt-daemon could crash if there is special character in dlt.conf
A specially crafted configuration file can crash the GENIVI DLT daemon, preventing log generation for dependent applications.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-29507?
CVE-2021-29507 is a medium-severity denial of service vulnerability in GENIVI dlt-daemon, published on 28 May 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
GENIVI Diagnostic Log and Trace (DLT) provides a log and trace interface. In versions of GENIVI DLT between 2.10.0 and 2.18.6, a configuration file containing the special characters could cause a vulnerable component to crash. All the applications which are using the configuration file could fail to generate their dlt logs in system. As of time of publication, no patch exists. As a workaround, one may check the integrity of information in configuration file manually.
Weakness: CWE-20
Which versions are affected by CVE-2021-29507?
It affects 1 product.
Products include Genivi Diagnostic Log and Trace.
How do I fix CVE-2021-29507?
Apply a workaround.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-29507 being exploited?
There is no known exploitation of CVE-2021-29507 in the wild and no public exploit code.
Other vulnerabilities in GENIVI dlt-daemon
Sources
Also known as DEBIAN-CVE-2021-29507, GHSA-7cqp-2hqj-mh3f, UBUNTU-CVE-2021-29507.