Vulnerability Details : CVE-2019-9183
An issue was discovered in Contiki-NG through 4.3 and Contiki through 3.0. A buffer overflow is present due to an integer underflow during 6LoWPAN fragment processing in the face of truncated fragments in os/net/ipv6/sicslowpan.c. This results in accesses of unmapped memory, crashing the application. An attacker can cause a denial-of-service via a crafted 6LoWPAN frame.
Vulnerability category: OverflowMemory CorruptionDenial of service
Products affected by CVE-2019-9183
- cpe:2.3:o:contiki-os:contiki:*:*:*:*:*:*:*:*
- cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-9183
0.17%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 53 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-9183
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2019-9183
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The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.Assigned by: nvd@nist.gov (Primary)
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The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-9183
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https://www.usenix.org/system/files/sec20summer_clements_prepub.pdf
Technical Description;Third Party Advisory
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https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.4
Release Version 4.4 · contiki-ng/contiki-ng · GitHubRelease Notes;Third Party Advisory
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https://github.com/contiki-ng/contiki-ng/pull/972
sicslowpan vulnerability fixes by nvt · Pull Request #972 · contiki-ng/contiki-ng · GitHubPatch;Third Party Advisory
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