Vulnerability Name:

CVE-2020-24335 (CCN-192774)

Assigned:2020-12-08
Published:2020-12-08
Updated:2021-02-04
Summary:An issue was discovered in uIP through 1.0, as used in Contiki and Contiki-NG. Domain name parsing lacks bounds checks, allowing an attacker to corrupt memory with crafted DNS packets.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-125
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-24335

Source: CCN
Type: US-CERT VU#815128
Embedded TCP/IP stacks have memory corruption vulnerabilities

Source: XF
Type: UNKNOWN
tcpipstacks-cve202024335-dos(192774)

Source: CCN
Type: uip GIT Repository
uIP

Source: MISC
Type: Product, Third Party Advisory
https://github.com/adamdunkels/uip

Source: CCN
Type: contiki-ng GIT Repository
Contiki-NG: The OS for Next Generation IoT Devices

Source: MISC
Type: Product, Third Party Advisory
https://github.com/contiki-ng/contiki-ng

Source: CCN
Type: contiki GIT Repository
The Contiki Operating System

Source: MISC
Type: Product, Third Party Advisory
https://github.com/contiki-os/contiki

Source: CCN
Type: ICSA-20-343-01
Multiple Embedded TCP/IP Stacks

Source: MISC
Type: Third Party Advisory, US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01

Source: CCN
Type: Forescout Web site
AMNESIA:33

Source: MISC
Type: Third Party Advisory, US Government Resource
https://www.kb.cert.org/vuls/id/815128

Vulnerable Configuration:Configuration 1:
  • cpe:/a:uip_project:uip:*:*:*:*:*:*:*:* (Version <= 1.0)
  • AND
  • cpe:/o:contiki-ng:contiki-ng:-:*:*:*:*:*:*:*
  • OR cpe:/o:contiki-os:contiki:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:uip_project:uip:1.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    uip_project uip *
    contiki-ng contiki-ng -
    contiki-os contiki -
    uip_project uip 1.0