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Advisory severityMedium4.7Red Hat Linux

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

This medium-severity Red Hat Linux advisory covers CVE-2024-10041 affecting Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Enterprise Linux 7.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2024-10041 Source published Source updated

VulniPulse record published

CVE-2024-10041
Affected products & platforms
Red Hat LinuxRed Hat Enterprise Linux
Open source advisory

Summary

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.

The PAM package as shipped in Red Hat Enterprise Linux 8 and 9 is not vulnerable to this vulnerability if SELinux is in Enforcing mode in the system. Red Hat severity: Moderate — CVSS 4.7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N).

Weakness: CWE-922. Affected Red Hat products: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.4 Extended Update Support; Red Hat Enterprise Linux 7.

Red Hat lists Red Hat Enterprise Linux 10 as not affected. Will not fix / out of support: Red Hat Enterprise Linux 7.

Red Hat fixing advisory: RHSA-2024:10379, RHSA-2024:11250, RHSA-2024:9941.

Affected products named by the advisory: Red Hat package: pam.

Is CVE-2024-10041 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2024-10041 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2024-10041?

Upgrade to a fixed release named by Red Hat:

  • pam-0:1.3.1-36.el8_10
  • pam-0:1.5.1-21.el9_5
  • pam-0:1.5.1-21.el9_4
  • RHSA-2024:10379
  • RHSA-2024:11250
  • RHSA-2024:9941

Confirm against the vendor advisory before you patch.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.

Official advisory · high-confidence parse· fetched 5 days ago·verify at source

Fixed versions
  • pam-0:1.3.1-36.el8_10
  • pam-0:1.5.1-21.el9_5
  • pam-0:1.5.1-21.el9_4
  • RHSA-2024:10379
  • RHSA-2024:11250
  • RHSA-2024:9941

Official advisory · high-confidence parse· fetched 5 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • This vulnerability is mitigated if SELinux is in Enforcing mode. To verify if SELinux is in Enforcing mode, the output of the `getenforce` command will return `Enforcing', see the example below: ~~~ $ getenforce Enforcing ~~~ To more information about SELinux, specifically how to set it to Enforcing mode, see the links below. https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html-single/using_selinux/index#changing-to-enforcing-mode_changing-selinux-states-and-modes https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html-single/using_selinux/index#changing-to-enforcing-mode_changing-selinux-states-and-modes

Official advisory · high-confidence parse· fetched 5 days ago·verify at source

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