CVE-2020-17441
Critical
Description
An issue was discovered in picoTCP 1.7.0. The code for processing the IPv6 headers does not validate whether the IPv6 payload length field is equal to the actual size of the payload, which leads to an Out-of-Bounds read during the ICMPv6 checksum calculation, resulting in either Denial-of-Service or Information Disclosure. This affects pico_ipv6_extension_headers and pico_checksum_adder (in pico_ipv6.c and pico_frame.c).
SeverityCritical
CVSS9.1
Exploit probability—
ProductAltran Picotcp
PublishedDec 11, 2020
First seenDec 11, 2020
How to fix
Update
- microchip mplab_harmony3.7.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| altran picotcp | v ≤ 1.7.0 | — |
| microchip mplab_harmony | 3.0.0 ≤ v < 3.7.0 | 3.7.0 |
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