CVE-2020-35684
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
58.5%
An issue was discovered in HCC Nichestack 3.0. The code that parses TCP packets relies on an unchecked value of the IP payload size (extracted from the IP header) to compute the length of the TCP payload within the TCP checksum computation function. When the IP payload size is set to be smaller than the size of the IP header, the TCP checksum computation function may read out of bounds (a low-impact write-out-of-bounds is also possible).
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| hcc-embedded | nichestack | 3.0 | cpe:2.3:a:hcc-embedded:nichestack:3.0:*:*:*:*:*:*:* |
| siemens | sentron_3wl_com35_firmware | * | cpe:2.3:o:siemens:sentron_3wl_com35_firmware:*:*:*:*:*:*:*:* |
| siemens | sentron_3wl_com35 | - | cpe:2.3:h:siemens:sentron_3wl_com35:-:*:*:*:*:*:*:* |
| siemens | sentron_3wa_com190_firmware | * | cpe:2.3:o:siemens:sentron_3wa_com190_firmware:*:*:*:*:*:*:*:* |
| siemens | sentron_3wa_com190 | - | cpe:2.3:h:siemens:sentron_3wa_com190:-:*:*:*:*:*:*:* |
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
58.5%