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Vulnerabilities

Vulnerability · CVE-2008-3529

Heap-based buffer overflow in the xmlParseAttValueComplex function in parser.c in libxml2 before 2.7.0 allows context-dependent attackers to cause a denial of service…

Published Sep 12, 2008 · catalog updated Jun 16, 2026 · Apple

Check this week

CVE-2008-3529 is not in CISA KEV. FIRST estimates a 23.37% chance of exploitation in the next 30 days. Check whether you run Apple.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical10.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
23.37%
Remediation
Version ranges on file
Affected products
cpe apple/safari · cpe canonical/ubuntu linux · cpe debian/debian linux · cpe xmlsoft/libxml2

Heap-based buffer overflow in the xmlParseAttValueComplex function in parser.c in libxml2 before 2.7.0 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a long XML entity name.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apple/safari< 3.2.3
  • cpe apple/safari< 4.0
  • cpe canonical/ubuntu linux6.06
  • cpe canonical/ubuntu linux7.04
  • cpe canonical/ubuntu linux7.10
  • cpe canonical/ubuntu linux8.04
  • cpe canonical/ubuntu linux8.10
  • cpe canonical/ubuntu linux9.04
  • cpe debian/debian linux4.0
  • cpe xmlsoft/libxml2< 2.7.0

How to fix CVE-2008-3529

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2008-3529 is not in CISA KEV. FIRST estimates a 23.37% chance of exploitation in the next 30 days. Check whether you run Apple.

Which versions are affected?

Compare what you have installed with canonical/ubuntu linux 6.06; canonical/ubuntu linux 7.04; canonical/ubuntu linux 7.10; canonical/ubuntu linux 8.04. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-119: Buffer Overflow. EPSS 23.37%. There is no CISA KEV listing. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 12, 2008 · Apple Security Releases

    Detected

    Heap-based buffer overflow in the xmlParseAttValueComplex function in parser.c in libxml2 before 2.7.0 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a long XML entity name.

  2. Jun 16, 2026 · Apple Security Releases

    Updated

    Heap-based buffer overflow in the xmlParseAttValueComplex function in parser.c in libxml2 before 2.7.0 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a long XML entity name.

Sources

  • Apple Security ReleasesVendor advisoryCVE-2008-3529

    Heap-based buffer overflow in the xmlParseAttValueComplex function in parser.c in libxml2 before 2.7.0 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a long XML entity name.

    nvd.nist.gov
  • CVE.orgVulnerability recordCVE-2008-3529

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2008-3529

    30-day exploitation probability 23.37%

    first.org
  • Exploit DatabasePublic exploit reference8798

    Public exploit archive reference. This is not confirmation of exploitation. The exploit body is not stored here.

    exploit-db.com

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.