Vulnerability Monitor

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CVE-2020-24334

The code that processes DNS responses in uIP through 1.0, as used in Contiki and Contiki-NG, does not check whether the number of responses specified in the DNS packet header corresponds to the response data available in the DNS packet, leading to an out-of-bounds read and Denial-of-Service in resolv.c.

Published

2020-12-11T23:15:13.807

Last Modified

2024-11-21T05:14:36.573

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.2 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

4.9

Weaknesses

Type: Primary
CWE-125

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	uip_project	uip	≤ 1.0	Yes
Operating System	contiki-ng	contiki-ng	-	No
Operating System	contiki-os	contiki	-	No

References

https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 Third Party Advisory, US Government Resource ([email protected])
https://www.kb.cert.org/vuls/id/815128 Third Party Advisory, US Government Resource ([email protected])
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
https://www.kb.cert.org/vuls/id/815128 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)