Riskcovery

CVE-2025-6021

Libxml2: integer overflow in xmlbuildqname() leads to stack buffer overflow in libxml2

State
Published
Severity
7.5 High
Published
Jun 12, 2025
Updated
Oct 12, 2026
Reserved
Jun 12, 2025

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hredhat

Weaknesses

Affected Products

ProductVersions
libxml2
  • before 2.14.4Affected
Red Hat Enterprise Linux 10Red Hat
  • 0:2.12.5-7.el10_0 and laterNot affected
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat
  • 0:2.9.1-6.el7_9.10 and laterNot affected
Red Hat Enterprise Linux 8Red Hat
  • 0:2.9.7-21.el8_10.1 and laterNot affected
Red Hat Enterprise Linux 8Red Hat
  • 0:2.9.7-21.el8_10.1 and laterNot affected
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat
  • 0:2.9.7-9.el8_2.3 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat
  • 0:2.9.7-9.el8_4.6 and laterNot affected
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat
  • 0:2.9.7-9.el8_4.6 and laterNot affected
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat
  • 0:2.9.7-13.el8_6.10 and laterNot affected
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRed Hat
  • 0:2.9.7-13.el8_6.10 and laterNot affected
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRed Hat
  • 0:2.9.7-13.el8_6.10 and laterNot affected
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat
  • 0:2.9.7-16.el8_8.9 and laterNot affected
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat
  • 0:2.9.7-16.el8_8.9 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:2.9.13-10.el9_6 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:2.9.13-10.el9_6 and laterNot affected
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat
  • 0:2.9.13-1.el9_0.5 and laterNot affected
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat
  • 0:2.9.13-3.el9_2.7 and laterNot affected
Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat
  • 0:2.9.13-10.el9_4 and laterNot affected
Red Hat JBoss Core Services 2.4.62.SP2Red Hat
    Red Hat OpenShift Container Platform 4.12Red Hat
    • 412.86.202509030110-0 and laterNot affected
    Red Hat OpenShift Container Platform 4.13Red Hat
    • 413.92.202509030117-0 and laterNot affected
    Red Hat OpenShift Container Platform 4.14Red Hat
    • 414.92.202508041909-0 and laterNot affected
    Red Hat OpenShift Container Platform 4.15Red Hat
    • 415.92.202508192014-0 and laterNot affected
    Red Hat OpenShift Container Platform 4.16Red Hat
    • 416.94.202508050040-0 and laterNot affected
    Red Hat OpenShift Container Platform 4.17Red Hat
    • 417.94.202508141510-0 and laterNot affected
    Red Hat OpenShift Container Platform 4.18Red Hat
    • 418.94.202508060022-0 and laterNot affected
    Red Hat OpenShift Container Platform 4.19Red Hat
    • 4.19.9.6.202507230107-0 and laterNot affected
    Red Hat Discovery 2Red Hat
    • 2.0.1-1754478727 and laterNot affected
    Red Hat Hardened ImagesRed Hat
    • 2.15.2-0.3.hum1 and laterNot affected
    Red Hat Insights proxy 1.5Red Hat
    • 1.5.5-1754504343 and laterNot affected
    Red Hat Enterprise Linux 6Red Hat

      References

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