Double Free Affecting perf-debuginfo package, versions <0:6.1.41-63.109.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.15% (5th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-AMZN2023-PERFDEBUGINFO-13154634
  • published30 Sept 2025
  • disclosed15 Sept 2025

Introduced: 15 Sep 2025

CVE-2023-53189  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 perf-debuginfo to version 0:6.1.41-63.109.amzn2023 or higher.
This issue was patched in ALAS2023-2023-299.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf-debuginfo package and not the perf-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

ipv6/addrconf: fix a potential refcount underflow for idev

Now in addrconf_mod_rs_timer(), reference idev depends on whether rs_timer is not pending. Then modify rs_timer timeout.

There is a time gap in [1], during which if the pending rs_timer becomes not pending. It will miss to hold idev, but the rs_timer is activated. Thus rs_timer callback function addrconf_rs_timer() will be executed and put idev later without holding idev. A refcount underflow issue for idev can be caused by this.

if (!timer_pending(&amp;idev-&gt;rs_timer))
    in6_dev_hold(idev);
      &lt;--------------[1]
mod_timer(&amp;idev-&gt;rs_timer, jiffies + when);

To fix the issue, hold idev if mod_timer() return 0.

CVSS Base Scores

version 3.1