CVE-2024-10041: Pam: libpam: libpam vulnerable to read hashed password

Severity: medium (CVSS 4.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-10-23 · updated 2026-06-30
Weakness: CWE-922

Description

A vulnerability was found in PAM. The secret information is stored in memory, where the attacker can trigger the victim program to execute by sending characters to its standard input (stdin). As this occurs, the attacker can train the branch predictor to execute an ROP chain speculatively. This flaw could result in leaked passwords, such as those found in /etc/shadow while performing authentications.

Affected products

Linux-PAM: all versions

References

https://access.redhat.com/errata/RHSA-2024:10379
https://access.redhat.com/errata/RHSA-2024:11250
https://access.redhat.com/errata/RHSA-2024:9941
https://access.redhat.com/security/cve/CVE-2024-10041
https://bugzilla.redhat.com/show_bug.cgi?id=2319212

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