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sct_set0_log_id

API Overview​

SCT_set0_log_id is an API in openssl. This rule belongs to the return value check type. This rule is generated using AURC.

Rule Description​

tip

SCT_set0_log_id() and B<SCT_set1_log_id> return 1 if the specified LogID is a valid SHA-256 hash, 0 otherwise. Additionally, B<SCT_set1_log_id> returns 0 if malloc fails.

info
  • Tags: return value check
  • Parameter Index: N/A
  • CWE Type: CWE-253

Rule Code​

import cpp

class OpenSSLFunctionCall extends FunctionCall {
  OpenSSLFunctionCall() {
    this.getTarget().hasName("SCT_set0_log_id")
  }
}

from OpenSSLFunctionCall call, UnaryOperation uop
where
  uop.getOperator() = "!" and
  uop.getOperand() = call.getAnAccess()
select uop, "This negation checks the return value of SCT_set0_log_id."