CVE-2016-1836
Published May 20, 2016 · Updated Oct 23, 2026
Original summary
Normalized public record · Updated Oct 23, 2026
Use-after-free vulnerability in the xmlDictComputeFastKey function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote attackers to cause a denial of service via a crafted XML document.
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
Use-after-free vulnerability in the xmlDictComputeFastKey function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote attackers to cause a denial of service via a crafted XML document.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- www.oracle.com ↗
- kc.mcafee.com ↗
- RHSA-2016:1292 ↗
- www.oracle.com ↗
- support.apple.com ↗
- 90691 ↗
- DSA-3593 ↗
- APPLE-SA-2016-07-18-4 ↗
- APPLE-SA-2016-07-18-3 ↗
- APPLE-SA-2016-07-18-2 ↗
- Patch commit ↗
- xmlsoft.org ↗
Record history
Published May 20, 2016 · Last refreshed Oct 23, 2026