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01 Record

CVE-2016-1835

Use-after-free vulnerability in the xmlSAX2AttributeNs function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2 and OS X before 10.11.5, allows remote attackers to cause a denial of service

UnratedPUBLISHEDCNA: apple
CNA base scoreUnratedNo CNA CVSS vector

02 Description

Use-after-free vulnerability in the xmlSAX2AttributeNs function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2 and OS X before 10.11.5, allows remote attackers to cause a denial of service

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
5.57% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 92.5% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2016-05-20 10:00Z10 YR AGO
Last updated
2024-08-05 23:10Z2 YR AGO
Reserved
2016-01-13
Assigning CNA
apple
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
  • CWE-416Use After FreeVariant
Data version
5.1
Document digest
00d0faf7009c4416b4b7e616c268696c334fd990c8dcb6e6a2d8d1fd9ee96085

05 Affected products

VendorProductVersionsPlatforms
appleiphone_osNot specified—
applemac_os_xNot specified—
canonicalubuntu_linuxNot specified—
debiandebian_linuxNot specified—
redhatenterprise_linuxNot specified—
redhatjboss_core_servicesNot specified—
redhatjboss_enterprise_web_serverNot specified—

06 References

07 Fixed in

Debian 12

  • libxml2
    Fixed in 2.9.3+dfsg1-1.1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • libxml2
    Fixed in 2.9.3+dfsg1-1.1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • libxml2
    Fixed in 2.9.3+dfsg1-1.1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

  • libxml2
    Fixed in 2.9.1+dfsg1-3ubuntu4.8

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • libxml2
    Fixed in 2.9.3+dfsg1-1ubuntu0.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.