CVE-2022-31291: An issue in dlt_config_file_parser.c of dlt-daemon v2.18.8 allows attackers to cause a double free via crafted

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HIGH 7.5REMOTEWATCHLISTDOWNGRADEMITIGATE

CVE-2022-31291 is a high-severity flaw (CVSS 7.5) affecting diagnostic log and trace, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Remotely exploitable, no login, no user action
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.1% (top 35%)
CISA exploited list	No
Weakness	CWE-415
Published	2022-06-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: debian · genivi

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-06-16 16:15 UTCPublished CVE record published
2026-06-17 04:45 UTCUpdated Record last modified

genivi diagnostic log and trace DOWNGRADE

Affected: 2.18.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.18.8

1. Check installed version

apt-cache policy diagnostic-log-and-trace || rpm -q diagnostic-log-and-trace || diagnostic-log-and-trace --version

2. No fixed release: DOWNGRADE to a release before 2.18.8 (Debian / Ubuntu)

apt-cache madison diagnostic-log-and-trace sudo apt install diagnostic-log-and-trace=<VERSION_BEFORE_2.18.8> sudo apt-mark hold diagnostic-log-and-trace

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list diagnostic-log-and-trace sudo dnf downgrade diagnostic-log-and-trace-<VERSION_BEFORE_2.18.8> sudo dnf versionlock add diagnostic-log-and-trace

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

debian debian linux MITIGATE

Affected: 10.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-31291?

diagnostic log and trace: downgrade or apply the listed mitigation; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-31291 being exploited?

CVE-2022-31291 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-31291 affect?

CVE-2022-31291 affects diagnostic log and trace, debian linux. Severity is high (CVSS 7.5). 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.

How urgent is CVE-2022-31291?

Priority 52/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Debian vulnerabilities

Related CVEs

CVE-2022-39837 MEDIUM 5.5 UPGRADE An issue was discovered in Connected Vehicle Systems Alliance (COVESA) dlt-daemon through 2.18.8
CVE-2022-39836 MEDIUM 5.5 UPGRADE An issue was discovered in Connected Vehicle Systems Alliance (COVESA) dlt-daemon through 2.18.8
CVE-2021-29507 MEDIUM 5.7 UPGRADE GENIVI Diagnostic Log and Trace (DLT) provides a log and trace interface
CVE-2020-36244 CRITICAL 9.8 UPGRADE MITIGATE The daemon in GENIVI diagnostic log and trace (DLT), is vulnerable to a heap-based buffer overflow that could
CVE-2020-29394 HIGH 7.8 UPGRADE MITIGATE A buffer overflow in the dlt_filter_load function in dlt_common.c from dlt-daemon through 2.18.5 (GENIVI Diagn

References

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