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Gentoo: 2023-11-07 High: AIDE root escalation due to buffer overflow

gentoo
Calendar Grey November 25, 2023
Dist Gentoo Esm H88
AIDE in Gentoo exhibits a buffer overflow vulnerability that could potentially grant unauthorized root access; it is advisable to upgrade for enhanced security.
A vulnerability has been found in AIDE which can lead to root privilege escalation.

Summary

A vulnerability has been discovered in AIDE. Please review the CVE identifier referenced below for details.

Topics%20covered

Topics Covered

security advisory gentoo buffer overflow software update root escalation AIDE

Resolution

All AIDE users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-forensics/aide-0.17.4"

References

[ 1 ] CVE-2021-45417 https://nvd.nist.gov/vuln/detail/CVE-2021-45417

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/202311-07
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: High
Title: AIDE: Root Privilege Escalation
Date: November 25, 2023
Bugs: #831658
ID: 202311-07

Topics%20covered

Topics Covered

security advisory gentoo buffer overflow software update root escalation AIDE

Synopsis

A vulnerability has been found in AIDE which can lead to root privilege escalation.

Background

AIDE (Advanced Intrusion Detection Environment) is a file and directory integrity checker.
It creates a database from the regular expression rules that it finds from the config file(s). Once this database is initialized it can be used to verify the integrity of the files. It has several message digest algorithms (see below) that are used to check the integrity of the file. All of the usual file attributes can also be checked for inconsistencies.

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Affected Packages

Package Vulnerable Unaffected ------------------ ------------ ------------ app-forensics/aide < 0.17.4 >= 0.17.4

Impact

AIDE before 0.17.4 allows local users to obtain root privileges via crafted file metadata (such as XFS extended attributes or tmpfs ACLs), because of a heap-based buffer overflow.

Workaround

There is no known workaround at this time.

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