Find, fix and prevent vulnerabilities in your code.

Overview

Affected versions of this package are vulnerable to Missing Release of Resource after Effective Lifetime via the makeres function due to improperly deleting keys from the reqs object after execution of callbacks. This behavior causes the keys to remain in the reqs object, which leads to resource exhaustion.

Exploiting this vulnerability results in crashing the node process or in the application crash.

Note: This library is not maintained, and currently, there is no fix for this issue. To overcome this vulnerability, several dependent packages have eliminated the use of this library.

To trigger the memory leak, an attacker would need to have the ability to execute or influence the asynchronous operations that use the inflight module within the application. This typically requires access to the internal workings of the server or application, which is not commonly exposed to remote users. Therefore, “Attack vector” is marked as “Local”.

PoC

const inflight = require('inflight');

function testInflight() {
  let i = 0;
  function scheduleNext() {
    let key = `key-${i++}`;
    const callback = () => {
    };
    for (let j = 0; j < 1000000; j++) {
      inflight(key, callback);
    }

    setImmediate(scheduleNext);
  }


  if (i % 100 === 0) {
    console.log(process.memoryUsage());
  }

  scheduleNext();
}

testInflight();

Remediation

There is no fixed version for inflight.

References

• GitHub Issue
• GitHub PR

Overview

aws-cdk-lib is a Version 2 of the AWS Cloud Development Kit library

Affected versions of this package are vulnerable to Incorrect Default Permissions in the IAM trust policy. A user with sts:AssumeRole permissions can escalate privileges to those defined by the IAM trust policy, including performing unauthorized actions on CloudFormation, CodeCommit, Lambda, and ECS.

Note: After upgrading to the patched version, the feature flag @aws-cdk/pipelines:reduceStageRoleTrustScope must be set to true, and applications redeployed.

Remediation

Upgrade aws-cdk-lib to version 2.184.0 or higher.

References

• GitHub Commit
• GitHub Issue
• GitHub Release