Use After Free Affecting nodejs-nodemon package, versions <0:3.0.1-1.module+el9.6.0+90588+1a9ecb62


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

Social Trends
EPSS
0.56% (43rd percentile)

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  • Snyk IDSNYK-ORACLE9-NODEJSNODEMON-10243639
  • published24 May 2025
  • disclosed8 Apr 2025

Introduced: 8 Apr 2025

CVE-2025-31498  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:9 nodejs-nodemon to version 0:3.0.1-1.module+el9.6.0+90588+1a9ecb62 or higher.
This issue was patched in ELSA-2025-7433.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs-nodemon package and not the nodejs-nodemon package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

c-ares is an asynchronous resolver library. From 1.32.3 through 1.34.4, there is a use-after-free in read_answers() when process_answer() may re-enqueue a query either due to a DNS Cookie Failure or when the upstream server does not properly support EDNS, or possibly on TCP queries if the remote closed the connection immediately after a response. If there was an issue trying to put that new transaction on the wire, it would close the connection handle, but read_answers() was still expecting the connection handle to be available to possibly dequeue other responses. In theory a remote attacker might be able to trigger this by flooding the target with ICMP UNREACHABLE packets if they also control the upstream nameserver and can return a result with one of those conditions, this has been untested. Otherwise only a local attacker might be able to change system behavior to make send()/write() return a failure condition. This vulnerability is fixed in 1.34.5.

CVSS Base Scores

version 3.1