CVE-2025-6021 (GCVE-0-2025-6021)

Vulnerability from cvelistv5 – Published: 2025-06-12 12:49 – Updated: 2026-05-12 12:02
VLAI
Title
Libxml2: integer overflow in xmlbuildqname() leads to stack buffer overflow in libxml2
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2025:10630 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:10698 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:10699 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:11580 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:11673 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:12098 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:12099 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:12199 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:12237 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:12239 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:12240 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:12241 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:13267 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:13289 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:13325 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:13335 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:13336 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:14059 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:14396 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:15308 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:15672 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:19020 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7519 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2025-6021 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2372406 issue-trackingx_refsource_REDHAT
https://gitlab.gnome.org/GNOME/libxml2/-/issues/926
https://lists.debian.org/debian-lts-announce/2025…
https://cert-portal.siemens.com/productcert/html/…
Impacted products
Vendor Product Version
Affected: 0 , < 2.14.4 (semver)
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:2.12.5-7.el10_0 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.0
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Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:2.9.1-6.el7_9.10 , < * (rpm)
    cpe:/o:redhat:rhel_els:7
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Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:2.9.7-21.el8_10.1 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
    cpe:/o:redhat:enterprise_linux:8::baseos
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Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support Unaffected: 0:2.9.7-9.el8_2.3 , < * (rpm)
    cpe:/o:redhat:rhel_aus:8.2::baseos
    cpe:/a:redhat:rhel_aus:8.2::appstream
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Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:2.9.7-9.el8_4.6 , < * (rpm)
    cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
    cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    cpe:/a:redhat:rhel_aus:8.4::appstream
    cpe:/o:redhat:rhel_aus:8.4::baseos
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Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:2.9.7-9.el8_4.6 , < * (rpm)
    cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
    cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    cpe:/a:redhat:rhel_aus:8.4::appstream
    cpe:/o:redhat:rhel_aus:8.4::baseos
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Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:2.9.7-13.el8_6.10 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.6::appstream
    cpe:/o:redhat:rhel_e4s:8.6::baseos
    cpe:/a:redhat:rhel_aus:8.6::appstream
    cpe:/o:redhat:rhel_tus:8.6::baseos
    cpe:/o:redhat:rhel_aus:8.6::baseos
    cpe:/a:redhat:rhel_e4s:8.6::appstream
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Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service Unaffected: 0:2.9.7-13.el8_6.10 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.6::appstream
    cpe:/o:redhat:rhel_e4s:8.6::baseos
    cpe:/a:redhat:rhel_aus:8.6::appstream
    cpe:/o:redhat:rhel_tus:8.6::baseos
    cpe:/o:redhat:rhel_aus:8.6::baseos
    cpe:/a:redhat:rhel_e4s:8.6::appstream
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Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Unaffected: 0:2.9.7-13.el8_6.10 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.6::appstream
    cpe:/o:redhat:rhel_e4s:8.6::baseos
    cpe:/a:redhat:rhel_aus:8.6::appstream
    cpe:/o:redhat:rhel_tus:8.6::baseos
    cpe:/o:redhat:rhel_aus:8.6::baseos
    cpe:/a:redhat:rhel_e4s:8.6::appstream
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Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:2.9.7-16.el8_8.9 , < * (rpm)
    cpe:/o:redhat:rhel_tus:8.8::baseos
    cpe:/o:redhat:rhel_e4s:8.8::baseos
    cpe:/a:redhat:rhel_e4s:8.8::appstream
    cpe:/a:redhat:rhel_tus:8.8::appstream
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Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:2.9.7-16.el8_8.9 , < * (rpm)
    cpe:/o:redhat:rhel_tus:8.8::baseos
    cpe:/o:redhat:rhel_e4s:8.8::baseos
    cpe:/a:redhat:rhel_e4s:8.8::appstream
    cpe:/a:redhat:rhel_tus:8.8::appstream
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Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:2.9.13-10.el9_6 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::appstream
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Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:2.9.13-1.el9_0.5 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:9.0::appstream
    cpe:/o:redhat:rhel_e4s:9.0::baseos
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Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:2.9.13-3.el9_2.7 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:9.2::baseos
    cpe:/a:redhat:rhel_e4s:9.2::appstream
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Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:2.9.13-10.el9_4 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.4::appstream
    cpe:/o:redhat:rhel_eus:9.4::baseos
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Red Hat Red Hat JBoss Core Services 2.4.62.SP2     cpe:/a:redhat:jboss_core_services:1
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Red Hat Red Hat OpenShift Container Platform 4.12 Unaffected: 412.86.202509030110-0 , < * (rpm)
    cpe:/a:redhat:openshift:4.12::el8
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Red Hat Red Hat OpenShift Container Platform 4.13 Unaffected: 413.92.202509030117-0 , < * (rpm)
    cpe:/a:redhat:openshift:4.13::el9
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Red Hat Red Hat OpenShift Container Platform 4.14 Unaffected: 414.92.202508041909-0 , < * (rpm)
    cpe:/a:redhat:openshift:4.14::el8
    cpe:/a:redhat:openshift:4.14::el9
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Red Hat Red Hat OpenShift Container Platform 4.15 Unaffected: 415.92.202508192014-0 , < * (rpm)
    cpe:/a:redhat:openshift:4.15::el9
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Red Hat Red Hat OpenShift Container Platform 4.16 Unaffected: 416.94.202508050040-0 , < * (rpm)
    cpe:/a:redhat:openshift:4.16::el9
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Red Hat Red Hat OpenShift Container Platform 4.17 Unaffected: 417.94.202508141510-0 , < * (rpm)
    cpe:/a:redhat:openshift:4.17::el9
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Red Hat Red Hat OpenShift Container Platform 4.18 Unaffected: 418.94.202508060022-0 , < * (rpm)
    cpe:/a:redhat:openshift:4.18::el9
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Red Hat Red Hat OpenShift Container Platform 4.19 Unaffected: 4.19.9.6.202507230107-0 , < * (rpm)
    cpe:/a:redhat:openshift:4.19::el9
 Create a notification for this product.
Red Hat Red Hat Discovery 2 Unaffected: sha256:ad07f55ee75fb20310c88f154a04665bd8465d138d66c665c300f61447858344 , < * (rpm)
    cpe:/a:redhat:discovery:2::el9
 Create a notification for this product.
Red Hat Red Hat Hardened Images Unaffected: 2.15.2-0.3.hum1 , < * (rpm)
    cpe:/a:redhat:hummingbird:1
 Create a notification for this product.
Red Hat Red Hat Insights proxy 1.5 Unaffected: sha256:c26d589f12647890b67aaa986f54d3f7c6f7f2563fb5a73f38d559e6138739d7 , < * (rpm)
    cpe:/a:redhat:insights_proxy:1.5::el9
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Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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Siemens SIMATIC CN 4100 Affected: 0 , < V5.0 (custom)
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Date Public
2025-06-12 00:00
Credits
Red Hat would like to thank Ahmed Lekssays for reporting this issue.
Show details on NVD website
To clipboard 

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  }
}


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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.