CVE-2003-1564

highpriority · track · 27EPSS 0.016 · 76 %ileEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
1.62% (76th) EPSS
CVSS 9.3 · high
Is it mine?
22 products
Check your exposure
Who says so?
4 sources
enisa_euvd · fstec_bdu · nvd · redhat_csaf

EPSS · scored 2026-10-28

libxml2, possibly before 2.5.0, does not properly detect recursion during entity expansion, which allows context-dependent attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, aka the "billion laughs attack."

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedlibxml2-0:2.4.19-11.ent.i386 as a component of Red Hat Enterprise Linux AS (Advanced Server) version 2.1 redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-0:2.4.19-11.ent.i386 as a component of Red Hat Enterprise Linux ES version 2.1redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-0:2.4.19-11.ent.i386 as a component of Red Hat Enterprise Linux WS version 2.1redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-0:2.4.19-11.ent.ia64 as a component of Red Hat Enterprise Linux AS (Advanced Server) version 2.1 redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-0:2.4.19-11.ent.ia64 as a component of Red Hat Linux Advanced Workstation 2.1redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-0:2.4.19-11.ent.src as a component of Red Hat Enterprise Linux AS (Advanced Server) version 2.1 redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-0:2.4.19-11.ent.src as a component of Red Hat Enterprise Linux ES version 2.1redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-0:2.4.19-11.ent.src as a component of Red Hat Enterprise Linux WS version 2.1redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-0:2.4.19-11.ent.src as a component of Red Hat Linux Advanced Workstation 2.1redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-devel-0:2.4.19-11.ent.i386 as a component of Red Hat Enterprise Linux AS (Advanced Server) version 2.1 redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-devel-0:2.4.19-11.ent.i386 as a component of Red Hat Enterprise Linux ES version 2.1redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-devel-0:2.4.19-11.ent.i386 as a component of Red Hat Enterprise Linux WS version 2.1redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-devel-0:2.4.19-11.ent.ia64 as a component of Red Hat Enterprise Linux AS (Advanced Server) version 2.1 redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-devel-0:2.4.19-11.ent.ia64 as a component of Red Hat Linux Advanced Workstation 2.1redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-python-0:2.4.19-11.ent.i386 as a component of Red Hat Enterprise Linux AS (Advanced Server) version 2.1 redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-python-0:2.4.19-11.ent.i386 as a component of Red Hat Enterprise Linux ES version 2.1redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-python-0:2.4.19-11.ent.i386 as a component of Red Hat Enterprise Linux WS version 2.1redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-python-0:2.4.19-11.ent.ia64 as a component of Red Hat Enterprise Linux AS (Advanced Server) version 2.1 redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
  • Fixedlibxml2-python-0:2.4.19-11.ent.ia64 as a component of Red Hat Linux Advanced Workstation 2.1redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2008:0886
02

cvss

Technical severity, 0–10. One row per scoring source.

10.0
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6–10

v2.09.3highAV:N/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 10
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6
v2.010criticalAV:N/AC:L/Au:N/C:C/I:C/A:Csecondary · FSTEC (BDU) RU
v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-776USprimaryCWE-776US
04

affected products (22)

Products and version ranges known to be affected.

showing 20 of 22
05

advisories (1)

Vendor and ecosystem advisories describing this.

  • RHSA-2008:0886Red Hat Security Advisory: libxml2 security update2008-09-11csaf · redhat_csafUS

    Updated libxml2 packages that fix various security issues are now available for Red Hat Enterprise Linux 2.1. This update has been rated as having important security impact by the Red Hat Security Response Team.

06

also known as (6)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

enisa_euvdfstec_bdunvdredhat_csafNVDCVE.orgMITRE
published 2003-12-31modified 2026-06-16
09

references (12)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan