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Password Hashes Leaked via Linux Crash Handlers: The Truth Behind CVE-2025-5054 & 4598
Manage episode 486477616 series 3645080
Content provided by Daily Security Review. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Daily Security Review or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://staging.podcastplayer.com/legal.
In this episode, we unpack two newly disclosed Linux vulnerabilities—CVE-2025-5054 and CVE-2025-4598—discovered by the Qualys Threat Research Unit (TRU). These race condition flaws impact Ubuntu’s apport and Red Hat/Fedora’s systemd-coredump, exposing a little-known but critical attack vector: core dumps from crashed SUID programs.
We dive into how these TOCTOU (Time-of-Check to Time-of-Use) race conditions let local attackers manipulate system timing to trick crash handlers into leaking sensitive data. While the CVSS score is a moderate 4.7, the implications are serious—core dumps can contain password hashes, encryption keys, or proprietary data from privileged processes.
Join us as we discuss how the vulnerabilities work, which Linux distributions are affected, and how administrators can apply patches or disable SUID core dumps as a temporary fix. We also explore what this means for system hardening, local threat models, and the often-overlooked risk posed by debugging and crash-reporting tools.
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Manage episode 486477616 series 3645080
Content provided by Daily Security Review. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Daily Security Review or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://staging.podcastplayer.com/legal.
In this episode, we unpack two newly disclosed Linux vulnerabilities—CVE-2025-5054 and CVE-2025-4598—discovered by the Qualys Threat Research Unit (TRU). These race condition flaws impact Ubuntu’s apport and Red Hat/Fedora’s systemd-coredump, exposing a little-known but critical attack vector: core dumps from crashed SUID programs.
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Join us as we discuss how the vulnerabilities work, which Linux distributions are affected, and how administrators can apply patches or disable SUID core dumps as a temporary fix. We also explore what this means for system hardening, local threat models, and the often-overlooked risk posed by debugging and crash-reporting tools.
120 episodes
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Android Backstage, a podcast by and for Android developers. Hosted by developers from the Android engineering team, this show covers topics of interest to Android programmers, with in-depth discussions and interviews with engineers on the Android team at Google. Subscribe to Android Developers YouTube → https://goo.gle/AndroidDevs
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