description: A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (All versions including affected IPv6 stack). The function that processes the Hop-by-Hop extension header in IPv6 packets and its options lacks any checks against the length field of the header, allowing attackers to put the function into an infinite loop by supplying arbitrary length values.
problem types: CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
affected:
{
vendor: Siemens
product: Capital Embedded AR Classic 431-422
versions:
status: affected, version: 0, lessThan: *, versionType: custom
defaultStatus: unknown
}
{
vendor: Siemens
product: Capital Embedded AR Classic R20-11
versions:
status: affected, version: 0, lessThan: V2303, versionType: custom
defaultStatus: unknown
}
{
vendor: Siemens
product: Nucleus NET
versions:
status: affected, version: All versions
defaultStatus: unknown
}
{
vendor: Siemens
product: Nucleus ReadyStart V3
versions:
status: affected, version: 0, lessThan: V2017.02.4, versionType: custom
defaultStatus: unknown
}
{
vendor: Siemens
product: Nucleus ReadyStart V4
versions:
status: affected, version: 0, lessThan: V4.1.0, versionType: custom
defaultStatus: unknown
}
{
vendor: Siemens
product: Nucleus Source Code
versions:
status: affected, version: 0, lessThan: *, versionType: custom
defaultStatus: unknown
}
metrics:
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
baseScore: 7.5
baseSeverity: HIGH
]