by Kastro
Paper/Archive/CVE-2021-42142

CVE-2021-42142

mitre — An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97.

EPSS 1.0%CVSS 9.8
critical.is priorityof 100
42
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 62.5.625 × 2012.5No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers mishandle the early use of a large epoch number. This vulnerability allows remote attackers to cause a denial of service and false-positive packet drops.

Affected

ProductAffectedFixed inSource
n/an/a–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADP8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgithub.com/contiki-ng/tinydtls/issues/24refseclists.org/fulldisclosure/2024/Jan/15refseclists.org/fulldisclosure/2024/Jan/15