CVE-2019-8359: contiki-ng Out-of-bounds Write
Modified
Published 23-04-2020Last modified 04-08-2024
Vulnerability summary
CVE-2019-8359 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in contiki-ng. EPSS estimates a 2.17% chance of exploitation in the next 30 days, higher than 82.1% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
2.17%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 23-04-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in Contiki-NG through 4.3 and Contiki through 3.0. An out of bounds write is present in the data section during 6LoWPAN fragment re-assembly in the face of forged fragment offsets in os/net/ipv6/sicslowpan.c.
CVSS metrics
2 scores · 1 source · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
2.17%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.17% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Contiki-ng1 product
- contiki-ng≤ 4.3
Contiki-os1 product
- contiki≤ 3.0
2 vendors · 2 products
References
3 links- github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.4X Refsource CONFIRMRelease NotesThird Party Advisory
- www.usenix.org/system/files/sec20summer_clements_prepub.pdfX Refsource MISCTechnical DescriptionThird Party Advisory