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CVE-2023-36321

Connected Vehicle Systems Alliance (COVESA) up to v2.18.8 wwas discovered to contain a buffer...

7.5 HighFix available

Connected Vehicle Systems Alliance (COVESA) up to v2.18.8 was discovered to contain a buffer overflow via the component /shared/dlt_common.c.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.12%Up 1.1 points since Oct 18, 2023
90%50%10%1%

What each source reports

NVD Score used 7.5

Connected Vehicle Systems Alliance (COVESA) up to v2.18.8 was discovered to contain a buffer overflow via the component /shared/dlt_common.c.

Record
CVE-2023-36321
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-120
Updated
2026-11-02
CVE List 7.5

Connected Vehicle Systems Alliance (COVESA) up to v2.18.8 was discovered to contain a buffer overflow via the component /shared/dlt_common.c.

Record
CVE-2023-36321
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-120
Updated
2026-11-02
EUVDEUVD-2023-40289 7.5

Connected Vehicle Systems Alliance (COVESA) up to v2.18.8 was discovered to contain a buffer overflow via the component /shared/dlt_common.c.

Record
EUVD-2023-40289
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-r57m-5qwg-3ccx 7.5

Connected Vehicle Systems Alliance (COVESA) up to v2.18.8 wwas discovered to contain a buffer...

Connected Vehicle Systems Alliance (COVESA) up to v2.18.8 wwas discovered to contain a buffer overflow via the component /shared/dlt_common.c.

Record
GHSA-r57m-5qwg-3ccx
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-120
Updated
2026-11-02
OSV 7.5

Connected Vehicle Systems Alliance (COVESA) up to v2.18.8 was discovered to contain a buffer overflow via the component /shared/dlt_common.c.

Record
CVE-2023-36321
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2023-36321 7.5

Connected Vehicle Systems Alliance (COVESA) up to v2.18.8 was discovered to contain a buffer overflow via the component /shared/dlt_common.c.

Record
DEBIAN-CVE-2023-36321
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2023-36321 7.5

Connected Vehicle Systems Alliance (COVESA) up to v2.18.8 was discovered to contain a buffer overflow via the component /shared/dlt_common.c.

Record
UBUNTU-CVE-2023-36321
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
dlt-daemon
Debian:12
 All versions, plus listed versions
2.18.10-12.18.10-102.18.10-112.18.10-122.18.10-12.1
Show 27 moreShow less
2.18.10-132.18.10-22.18.10-32.18.10-42.18.10-52.18.10-62.18.10-72.18.10-82.18.10-92.18.11-12.18.11-22.18.11-32.18.11-42.18.11-52.18.8-62.18.9-12.18.9-23.0.0-13.0.0-103.0.0-23.0.0-33.0.0-43.0.0-53.0.0-63.0.0-73.0.0-83.0.0-9
 None known
dlt-daemon
Debian:13
 before 2.18.9-1
2.18.9-1
dlt-daemon
Debian:14
 before 2.18.9-1
2.18.9-1
dlt-daemon
Debian:10
From an advisory covering 4 CVEs
 before 2.18.0-1+deb10u2, plus listed versions
2.18.0-12.18.0-1+deb10u1
2.18.0-1+deb10u2
dlt-daemon
Ubuntu:20.04:LTS
 All versions, plus listed versions
2.18.4-0.1
 None known
dlt-daemon
Ubuntu:22.04:LTS
 All versions, plus listed versions
2.18.6-2
 None known

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-36321 is a high vulnerability (CVSS 7.5) in Covesa Dlt-daemon, published October 17, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.12%, the 66th percentile. Fixed in dlt-daemon 2.18.9-1.

References

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