Memory corruption attacks¶

1. Memory corruption attacks [OR]

    1.1 Kernel IPsec stack overflows [OR]

        1.1.1 Stack-based buffer overflows in ESP/AH packet processing [AND]
            1.1.1.1 Exploit oversized payloads in incoming ESP/AH packets
            1.1.1.2 Overwrite local stack variables [AND]
                1.1.1.2.1 Gain control of return addresses
                1.1.1.2.2 Trigger kernel-level code execution

        1.1.2 Heap overflow in SA state allocation and management [AND]
            1.1.2.1 Exploit insufficient bounds checks in SA creation
            1.1.2.2 Overwrite adjacent heap structures [AND]
                1.1.2.2.1 Corrupt session state
                1.1.2.2.2 Redirect execution flow

        1.1.3 Integer overflows in packet size calculations [AND]
            1.1.3.1 Supply crafted packet sizes exceeding limits
            1.1.3.2 Wrap arithmetic to bypass checks [AND]
                1.1.3.2.1 Allocate insufficient buffer
                1.1.3.2.2 Cause memory corruption or kernel crash

        1.1.4 Use-after-free vulnerabilities in SA garbage collection [AND]
            1.1.4.1 Free SA structures prematurely
            1.1.4.2 Trigger access to dangling pointers [AND]
                1.1.4.2.1 Manipulate freed memory contents
                1.1.4.2.2 Escalate privileges or crash stack

    1.2 IKE daemon remote code execution [OR]

        1.2.1 Buffer overflows in IKE message parsing [AND]
            1.2.1.1 Supply malformed IKE_SA_INIT or IKE_AUTH payloads
            1.2.1.2 Overwrite daemon memory regions [AND]
                1.2.1.2.1 Hijack execution flow
                1.2.1.2.2 Execute arbitrary code as daemon user

        1.2.2 Format string vulnerabilities in logging functions [AND]
            1.2.2.1 Inject format specifiers in IKE messages
            1.2.2.2 Exploit improper printf-style handling [AND]
                1.2.2.2.1 Read sensitive memory
                1.2.2.2.2 Redirect control flow

        1.2.3 Memory corruption in certificate parsing and validation [AND]
            1.2.3.1 Supply malformed X.509 certificates
            1.2.3.2 Exploit ASN.1 parsing flaws [AND]
                1.2.3.2.1 Cause heap/stack corruption
                1.2.3.2.2 Bypass validation or execute arbitrary code

        1.2.4 Race conditions in IKE state machine handling [AND]
            1.2.4.1 Trigger concurrent message handling
            1.2.4.2 Exploit non-atomic updates [AND]
                1.2.4.2.1 Corrupt internal state tables
                1.2.4.2.2 Facilitate remote code execution or denial-of-service

    1.3 Packet parsing vulnerabilities [OR]

        1.3.1 Length validation bypass in IPsec header processing [AND]
            1.3.1.1 Craft packets with inconsistent length fields
            1.3.1.2 Circumvent buffer size checks [AND]
                1.3.1.2.1 Overwrite memory regions
                1.3.1.2.2 Trigger daemon or kernel crash

        1.3.2 ASN.1 parsing flaws in X.509 certificate handling [AND]
            1.3.2.1 Supply nested or malformed ASN.1 structures
            1.3.2.2 Exploit decoder logic [AND]
                1.3.2.2.1 Cause heap corruption
                1.3.2.2.2 Enable code execution or certificate bypass

        1.3.3 Integer underflow in ICV (Integrity Check Value) calculation [AND]
            1.3.3.1 Provide crafted packet sizes
            1.3.3.2 Wrap arithmetic to bypass checks [AND]
                1.3.3.2.1 Trigger allocation of undersized buffers
                1.3.3.2.2 Overwrite memory adjacent to buffers

        1.3.4 Crafted transform payload exploitation [AND]
            1.3.4.1 Manipulate cryptographic transform fields
            1.3.4.2 Exploit parser assumptions [AND]
                1.3.4.2.1 Trigger invalid memory access
                1.3.4.2.2 Corrupt SA state or crash process

    1.4 Fragmentation reassembly flaws [OR]

        1.4.1 IP fragmentation overlap attacks (Teardrop variants) [AND]
            1.4.1.1 Supply overlapping fragments
            1.4.1.2 Exploit kernel reassembly logic [AND]
                1.4.1.2.1 Overwrite memory during merge
                1.4.1.2.2 Cause kernel panic or denial-of-service

        1.4.2 Fragment reassembly buffer exhaustion [AND]
            1.4.2.1 Flood victim with many fragments
            1.4.2.2 Exhaust memory allocated for reassembly [AND]
                1.4.2.2.1 Prevent legitimate packet processing
                1.4.2.2.2 Induce denial-of-service

        1.4.3 Length validation bypass through fragmentation [AND]
            1.4.3.1 Craft fragments with inconsistent total length
            1.4.3.2 Bypass bounds checks [AND]
                1.4.3.2.1 Cause memory overwrite
                1.4.3.2.2 Trigger kernel or daemon crash

        1.4.4 Off-by-one errors in reassembly state tracking [AND]
            1.4.4.1 Supply fragments that trigger edge-case buffer indexing
            1.4.4.2 Exploit index miscalculations [AND]
                1.4.4.2.1 Overwrite adjacent memory
                1.4.4.2.2 Cause denial-of-service or code execution