CVE-2020-35683
High
Description
An issue was discovered in HCC Nichestack 3.0. The code that parses ICMP packets relies on an unchecked value of the IP payload size (extracted from the IP header) to compute the ICMP checksum. When the IP payload size is set to be smaller than the size of the IP header, the ICMP checksum computation function may read out of bounds, causing a Denial-of-Service.
SeverityHigh
CVSS7.5
Exploit probability83. percentile2.3%
ProductHcc-embedded Nichestack
PublishedAug 19, 2021
First seenAug 19, 2021
How to fix
Update
- siemens 7km9300-0ae02-0aa0_firmware3.0.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| hcc-embedded nichestack | 3.0 | — |
| siemens 7km9300-0ae02-0aa0_firmware | v < 3.0.4 | 3.0.4 |
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