RHSA-2025:20559 - Security Advisory

Topic

An update for shadow-utils is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The shadow-utils packages include programs for converting UNIX password files to the shadow password format, as well as utilities for managing user and group accounts.

Security Fix(es):

• shadow-utils: Default subordinate ID configuration in /etc/login.defs could lead to compromise (CVE-2024-56433)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 9 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 9 x86_64
• Red Hat Enterprise Linux for IBM z Systems 9 s390x
• Red Hat Enterprise Linux for Power, little endian 9 ppc64le
• Red Hat Enterprise Linux for ARM 64 9 aarch64
• Red Hat CodeReady Linux Builder for x86_64 9 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian 9 ppc64le
• Red Hat CodeReady Linux Builder for ARM 64 9 aarch64
• Red Hat CodeReady Linux Builder for IBM z Systems 9 s390x

Fixes

• BZ - 2334165 - CVE-2024-56433 shadow-utils: Default subordinate ID configuration in /etc/login.defs could lead to compromise
• RHEL-70844 - The read command suspends on SIGTTOU because vipw does not restore terminal pgid.
• RHEL-72940 - vipw/vigr affect bash because it does not restore terminal pgid.
• RHEL-105945 - [rhel-9.7] Podman system test - as user - Found no UID ranges set aside for user

CVEs

• CVE-2024-56433

References

• https://access.redhat.com/security/updates/classification/#low
• https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/9.7_release_notes/index