CVE-2016-1835

high
Published 2016-05-20 · Modified 2026-05-06
CVSS v3
8.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v2
6.8
VIR risk
8.8

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 via a crafted XML document.

Predictions

Exploit likelihood
92%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-1835

vendor Authored 2026-05-27

Vendor advisory: product-security@apple.com — https://support.apple.com/HT206568

vendor Authored 2026-05-27

Vendor advisory: product-security@apple.com — https://support.apple.com/HT206567

vendor Authored 2026-05-27

Vendor advisory: product-security@apple.com — http://lists.apple.com/archives/security-announce/2016/May/msg00004.html

vendor Authored 2026-05-27

Vendor advisory: product-security@apple.com — http://lists.apple.com/archives/security-announce/2016/May/msg00002.html

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed2.9.3+dfsg1-1.1
debian debianbullseyefixed2.9.3+dfsg1-1.1
debian debianforkyfixed2.9.3+dfsg1-1.1
debian debiansidfixed2.9.3+dfsg1-1.1
debian debiantrixiefixed2.9.3+dfsg1-1.1
ubuntu ubuntu12.04affected
ubuntu ubuntu14.04affected
ubuntu ubuntu15.10affected
ubuntu ubuntu16.04affected
debian debian8.0affected
macos macosaffected

References

CWEs

CWE-119

Verify integrity in audit chain (admin only). AS-IS.