CVE-2020-17443

An issue was discovered in picoTCP 1.7.0. The code for creating an ICMPv6 echo replies doesn't check whether the ICMPv6 echo request packet's size is shorter than 8 bytes. If the size of the incoming ICMPv6 request packet is shorter than this, the operation that calculates the size of the ICMPv6 echo replies has an integer wrap around, leading to memory corruption and, eventually, Denial-of-Service in pico_icmp6_send_echoreply_not_frag in pico_icmp6.c.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01	Third Party Advisory US Government Resource
https://www.kb.cert.org/vuls/id/815128	Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

cpe:2.3:a:altran:picotcp:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-12-11 23:15

Updated : 2023-12-10 13:41

NVD link : CVE-2020-17443

Mitre link : CVE-2020-17443

CVE.ORG link : CVE-2020-17443

JSON object : View

Products Affected

altran

picotcp

CWE

CWE-190

Integer Overflow or Wraparound

CWE-787

Out-of-bounds Write

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