BN_is_prime_ex

API 概述

BN_is_prime_ex 是 openssl 中的一个API。该规属于return value check 类型。该规则是使用 AURC 生成的。

规则描述

提示

BN_is_prime_ex(), BN_is_prime_fasttest_ex(), BN_is_prime(), BN_is_prime_fasttest() and BN_check_prime return 0 if the number is composite, 1 if it is prime with an error probability of less than 0.25^B<nchecks>, and -1 on error.

信息

标签：return value check

参数下标：N/A

CWE类别：CWE-253

规则代码

import cpp

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

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