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7.5 High

CVE-2025-6021 Libxml2: integer overflow in xmlbuildqname() leads to stack buffer overflow in libxml2

Description

A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.

CVSS 3.1 detail

Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitable remotely over the network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector
Network
Attack complexity
Low
Privileges required
None
Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Affected products and versions

Product Affected versions Fixed in
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 7 Extended Lifecycle Support Versions not published
Red Hat Enterprise Linux 8 Versions not published
Red Hat Enterprise Linux 8.2 Advanced Update Support Versions not published
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Versions not published
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Versions not published
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Versions not published
Red Hat Enterprise Linux 8.6 Telecommunications Update Service Versions not published
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Versions not published
Show the 22 other branches
Product Affected versions Fixed in
Red Hat Enterprise Linux 8.8 Telecommunications Update Service Versions not published
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9 Versions not published
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.4 Extended Update Support Versions not published
Red Hat JBoss Core Services 2.4.62.SP2 Versions not published
Red Hat OpenShift Container Platform 4.12 412.86 earliest → < 412.86.202509030110-0 412.86.202509030110-0
Red Hat OpenShift Container Platform 4.13 413.92 earliest → < 413.92.202509030117-0 413.92.202509030117-0
Red Hat OpenShift Container Platform 4.14 414.92 earliest → < 414.92.202508041909-0 414.92.202508041909-0
Red Hat OpenShift Container Platform 4.15 415.92 earliest → < 415.92.202508192014-0 415.92.202508192014-0
Red Hat OpenShift Container Platform 4.16 416.94 earliest → < 416.94.202508050040-0 416.94.202508050040-0
Red Hat OpenShift Container Platform 4.17 417.94 earliest → < 417.94.202508141510-0 417.94.202508141510-0
Red Hat OpenShift Container Platform 4.18 418.94 earliest → < 418.94.202508060022-0 418.94.202508060022-0
Red Hat OpenShift Container Platform 4.19 4.19 earliest → < 4.19.9.6.202507230107-0 4.19.9.6.202507230107-0
Red Hat Discovery 2 2.0 earliest → < 2.0.1-1754478727 2.0.1-1754478727
Red Hat Insights proxy 1.5 1.5 earliest → < 1.5.5-1754504343 1.5.5-1754504343
Red Hat Enterprise Linux 6 Versions not published
Red Hat Hardened Images 2.15 earliest → < 2.15.2-0.3.hum1 2.15.2-0.3.hum1
SIMATIC CN 4100 5.0 earliest → < 5.0 5.0
Red Hat In-Vehicle Operating System 1 Versions not published
Red Hat OpenShift Container Platform 4 Versions not published

References

Timeline

  1. Published
  2. Last modified

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