- Description
- Integer underflow in the DHCPv6 sub-option parser in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network actor to corrupt the device's IPv6 address assignment, DNS configuration, and lease times, and to cause a denial of service (permanent IP task freeze requiring hardware reset) by sending a single crafted DHCPv6 packet. The issue is present whenever DHCPv6 is enabled. To mitigate this issue, users should upgrade to version V4.2.6 or V4.4.1 or newer.
- Source
- ff89ba41-3aa1-4d27-914a-91399e9639e5
- NVD status
- Analyzed
- Products
- freertos-plus-tcp
CVSS 4.0
- Type
- Secondary
- Base score
- 7.2
- Impact score
- -
- Exploitability score
- -
- Vector string
- CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity
- HIGH
CVSS 3.1
- Type
- Secondary
- Base score
- 8.1
- Impact score
- 5.2
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- Severity
- HIGH
- ff89ba41-3aa1-4d27-914a-91399e9639e5
- CWE-191
- Hype score
- Not currently trending
[
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:amazon:freertos-plus-tcp:*:*:*:*:*:*:*:*",
"matchCriteriaId": "DE7A5C38-9CEA-461B-9272-3B8BFC06BFEE",
"versionEndExcluding": "4.2.6",
"versionStartIncluding": "4.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:amazon:freertos-plus-tcp:*:*:*:*:*:*:*:*",
"matchCriteriaId": "375C7032-9CFB-480C-BFFA-029C985A82B7",
"versionEndExcluding": "4.4.1",
"versionStartIncluding": "4.3.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
]