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Gentoo: 202105-09 Moderate: BusyBox Denial Of Service Threat

gentoo
Calendar Grey May 26, 2021
Dist Gentoo Esm H88
Delve into Gentoo GLSA 202105-09, detailing vulnerabilities linked to BusyBox that could cause denial of service. It offers crucial mitigation steps for enhanced system security.
A vulnerability in BusyBox might allow remote attackers to cause a Denial of Service condition.

Summary

It was discovered that BusyBox mishandled the error bit on the huft_build result pointer when decompressing GZIP compressed data.

Topics%20covered

Topics Covered

security advisory denial of service security update gentoo moderate risk busybox

Resolution

All BusyBox users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/busybox-1.32.1"

References

[ 1 ] CVE-2021-28831 https://nvd.nist.gov/vuln/detail/CVE-2021-28831

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202105-09
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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
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Severity: Low
Title: BusyBox: Denial of service
Date: May 26, 2021
Bugs: #777255
ID: 202105-09

Topics%20covered

Topics Covered

security advisory denial of service security update gentoo moderate risk busybox

Synopsis

A vulnerability in BusyBox might allow remote attackers to cause a Denial of Service condition.

Background

BusyBox is a set of tools for embedded systems and is a replacement for GNU Coreutils.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/busybox < 1.32.1 >= 1.32.1

Impact

===== A remote attacker could entice a user to open a specially crafted GZIP file using BusyBox, possibly resulting in a Denial of Service condition.

Workaround

There is no known workaround at this time.

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