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CVE-2008-4225· NVD / CVE Program· CNA mitre

Integer overflow in the xmlBufferResize function in libxml2 2.7.2 allows context-dependent attackers to cause a denial of service (infinite

Integer overflow in the xmlBufferResize function in libxml2 2.7.2 allows context-dependent attackers to cause a denial of service (infinite loop) via a large XML document.

HighCVSS 7.8 · v2.0—No exploit Fix available
Published
Nov 25, 2008
Updated
Jun 16, 2026
EPSS
3.2% · 88th percentile
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Report tools

JSON

Action score

32

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.2%

Affected systems

VendorProduct
xmlsoftlibxml

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • xmlsoft libxml2.7.2

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12libxml2before 2.6.32.dfsg-52.6.32.dfsg-5
Debian:4.0libxml2before 2.6.27.dfsg-62.6.27.dfsg-6
openSUSE:Tumbleweedlibxml2before 2.9.4-1.222.9.4-1.22
openSUSE:Tumbleweedpython-libxml2before 2.9.4-1.42.9.4-1.4
Red Hat:enterprise_linux:2.1::aslibxml2before 0:2.4.19-12.ent0:2.4.19-12.ent
Red Hat:enterprise_linux:2.1::aslibxml2-develbefore 0:2.4.19-12.ent0:2.4.19-12.ent
Red Hat:enterprise_linux:2.1::aslibxml2-pythonbefore 0:2.4.19-12.ent0:2.4.19-12.ent
Red Hat:enterprise_linux:3::aslibxml2before 0:2.5.10-140:2.5.10-14
Red Hat:enterprise_linux:3::aslibxml2-debuginfobefore 0:2.5.10-140:2.5.10-14
Red Hat:enterprise_linux:3::aslibxml2-develbefore 0:2.5.10-140:2.5.10-14
Red Hat:enterprise_linux:3::aslibxml2-pythonbefore 0:2.5.10-140:2.5.10-14
Red Hat:enterprise_linux:4::aslibxml2before 0:2.6.16-12.60:2.6.16-12.6
Red Hat:enterprise_linux:4::aslibxml2-debuginfobefore 0:2.6.16-12.60:2.6.16-12.6
Red Hat:enterprise_linux:4::aslibxml2-develbefore 0:2.6.16-12.60:2.6.16-12.6
Red Hat:enterprise_linux:4::aslibxml2-pythonbefore 0:2.6.16-12.60:2.6.16-12.6
Red Hat:enterprise_linux:5::clientlibxml2-pythonbefore 0:2.6.26-2.1.2.70:2.6.26-2.1.2.7
Red Hat:enterprise_linux:5::client_workstationlibxml2before 0:2.6.26-2.1.2.70:2.6.26-2.1.2.7
Red Hat:enterprise_linux:5::client_workstationlibxml2-debuginfobefore 0:2.6.26-2.1.2.70:2.6.26-2.1.2.7
Red Hat:enterprise_linux:5::client_workstationlibxml2-develbefore 0:2.6.26-2.1.2.70:2.6.26-2.1.2.7

Other highest-scoring records for the same primary product.

  • CVE-2004-0989Multiple buffer overflows in libXML 2.6.12 and 2.6.13 (libxml2), and possibly other versions, may allow remote attackers to execute arbitrar
    47Plan
  • CVE-2008-4226Integer overflow in the xmlSAX2Characters function in libxml2 2.7.2 allows context-dependent attackers to cause a denial of service (memory
    41Plan
  • CVE-2004-0110Buffer overflow in the (1) nanohttp or (2) nanoftp modules in XMLSoft Libxml 2 (Libxml2) 2.6.0 through 2.6.5 allow remote attackers to execu
    37Monitor
  • CVE-2009-2416Multiple use-after-free vulnerabilities in libxml2 2.5.10, 2.6.16, 2.6.26, 2.6.27, and 2.6.32, and libxml 1.8.17, allow context-dependent at
    27Monitor
  • CVE-2009-2414Stack consumption vulnerability in libxml2 2.5.10, 2.6.16, 2.6.26, 2.6.27, and 2.6.32, and libxml 1.8.17, allows context-dependent attackers
    18Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:libxml22.6.32.dfsg-5 · Debian:12Package registry (OSV)
opensuse:libxml22.9.4-1.22 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:python-libxml22.9.4-1.4 · openSUSE:TumbleweedPackage registry (OSV)
red hat:libxml20:2.4.19-12.ent · Red Hat:enterprise_linux:2.1::asPackage registry (OSV)
red hat:libxml2-debuginfo0:2.5.10-14 · Red Hat:enterprise_linux:3::asPackage registry (OSV)
red hat:libxml2-devel0:2.4.19-12.ent · Red Hat:enterprise_linux:2.1::asPackage registry (OSV)
red hat:libxml2-python0:2.4.19-12.ent · Red Hat:enterprise_linux:2.1::asPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
C · the service can be disrupted
Attack complexity
Low
Confidentiality impact
None
Integrity impact
None
Availability impact
C

Weakness class (CWE)

CWE-189 · Numeric Errors

CVSS vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

  1. Fix✗ → ✓

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References

All records