CVE-2020-25767
High
Description
An issue was discovered in HCC Embedded NicheStack IPv4 4.1. The dnc_copy_in routine for parsing DNS domain names does not check whether a domain name compression pointer is pointing within the bounds of the packet (e.g., forward compression pointer jumps are allowed), which leads to an Out-of-bounds Read, and a Denial-of-Service as a consequence.
SeverityHigh
CVSS7.5
Exploit probability—
ProductHcc-embedded Nichestack
PublishedAug 18, 2021
First seenAug 18, 2021
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| hcc-embedded nichestack_ipv4 | 4.1 | — |
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