Vulnerability/
REDHAT-BUG-2499658

REDHAT-BUG-2499658: Use After Free

Q: Which deployments are affected?

GNU gawk versions 5.4.0 and earlier are affected. The issue is in the do_getline_redir() routine in the io.c source file.

Q: What is the known impact of exploiting this issue?

The provided information states that the use-after-free condition may lead to a crash. No further impact, such as code execution or data disclosure, is specified.

Q: How can I determine whether my system needs remediation?

Check the installed GNU gawk version. Systems running version 5.4.0 or below are within the stated affected range.

Published Jul 13, 2026

Updated

Use After Free vulnerability has been found in "io.c" program file of gawk (dogetlineredir() routine). This issue may lead to a crash. It affects gawk in versions 5.4.0 and below.

Affected Software

1 affected component

GNU gawk<=5.4.0

Event History

Jul 13, 2026

Data Sourced

via Red Hat·01:02 PM

DescriptionSeverityAffected Software

Frequently Asked Questions

Which deployments are affected?

GNU gawk versions 5.4.0 and earlier are affected. The issue is in the do_getline_redir() routine in the io.c source file.

What is the known impact of exploiting this issue?

The provided information states that the use-after-free condition may lead to a crash. No further impact, such as code execution or data disclosure, is specified.

How can I determine whether my system needs remediation?

Check the installed GNU gawk version. Systems running version 5.4.0 or below are within the stated affected range.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.