HOMEVULNERABILITIESCVE-2020-29394
HIGH

CVE-2020-29394

CWE-787Published: November 30, 2020· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

A buffer overflow in the dlt_filter_load function in dlt_common.c from dlt-daemon through 2.18.5 (GENIVI Diagnostic Log and Trace) allows arbitrary code execution because fscanf is misused (no limit on the number of characters to be read in the format argument).

NVD Source

Technical Analysis

CVE-2020-29394 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

Debian1 product(s)
debian linux
genivi1 product(s)
diagnostic log and trace
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/GENIVI/dlt-daemon/issues/274
PATCHhttps://github.com/GENIVI/dlt-daemon/pull/275
PATCHhttps://github.com/GENIVI/dlt-daemon/pull/288
PATCHhttps://github.com/GENIVI/dlt-daemon/issues/274
PATCHhttps://github.com/GENIVI/dlt-daemon/pull/275
PATCHhttps://github.com/GENIVI/dlt-daemon/pull/288
ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/12/msg00016.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/12/msg00016.html

All References (8)

→
https://github.com/GENIVI/dlt-daemon/issues/274Exploit · Patch · Third Party Advisory
→
https://github.com/GENIVI/dlt-daemon/pull/275Patch · Third Party Advisory
→
https://github.com/GENIVI/dlt-daemon/pull/288Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2022/12/msg00016.htmlMailing List · Third Party Advisory
→
https://github.com/GENIVI/dlt-daemon/issues/274Exploit · Patch · Third Party Advisory
→
https://github.com/GENIVI/dlt-daemon/pull/275Patch · Third Party Advisory
→
https://github.com/GENIVI/dlt-daemon/pull/288Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2022/12/msg00016.htmlMailing List · Third Party Advisory

Quick Facts

CVE IDCVE-2020-29394
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-787
CISA KEVNo
Affected2 vendor(s)
PublishedNov 30, 2020

Related CVEs (CWE-787)

CVE-2018-2913
10.0
CVE-2019-5049
10.0
CVE-2012-0751
10.0
CVE-2013-5610
10.0
CVE-2018-6692
10.0
CVE-2020-11897
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-29394 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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