CVE-2023-4641

Shadow-utils: possible password leak during passwd(1) change

Description

A flaw was found in shadow-utils. When asking for a new password, shadow-utils asks the password twice. If the password fails on the second attempt, shadow-utils fails in cleaning the buffer used to store the first entry. This may allow an attacker with enough access to retrieve the password from the memory.

Categories

4.7
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 6
Affected: Red Hat Red Hat Enterprise Linux 7
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2023:6632 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7112 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2024:0417 vendor advisory
https://access.redhat.com/errata/RHSA-2024:2577 vendor advisory
https://access.redhat.com/security/cve/CVE-2023-4641 third party advisory vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2215945 issue tracking

Frequently Asked Questions

What is the severity of CVE-2023-4641?
CVE-2023-4641 has been scored as a medium severity vulnerability.
How to fix CVE-2023-4641?
To fix CVE-2023-4641, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-4641 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-4641 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-4641?
CVE-2023-4641 affects Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support, Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 6, Red Hat Red Hat Enterprise Linux 7.
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