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Vulnerability record · CVE-2016-1835 · published 20 May 2016

CVE-2016-1835: Canonical ubuntu linux memory buffer overflow vulnerability

Canonical · Ubuntu Linux

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.

8.8 CVSS 3.0 High EPSS 5.6% · top 7.4% CWE-119 · Memory buffer overflow
8.8CVSS 3.0 base score, v2 6.8
5.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
36References
17 Jun 2026Last modified by NVD

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.apple.com/archives/security-announce/2016/May/msg00002.html Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/May/msg00004.html Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2016-2957.html
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securityfocus.com/bid/90696
http://www.securitytracker.com/id/1035890
http://www.ubuntu.com/usn/USN-2994-1
http://xmlsoft.org/news.html
https://access.redhat.com/errata/RHSA-2016:1292
https://bugzilla.gnome.org/show_bug.cgi?id=759020
https://git.gnome.org/browse/libxml2/commit/?id=38eae571111db3b43ffdeb05487c9f60551906fb
https://kc.mcafee.com/corporate/index?page=content&id=SB10170
https://support.apple.com/HT206567 Vendor Advisory
https://support.apple.com/HT206568 Vendor Advisory
https://www.debian.org/security/2016/dsa-3593
https://www.tenable.com/security/tns-2016-18
http://lists.apple.com/archives/security-announce/2016/May/msg00002.html Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/May/msg00004.html Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2016-2957.html
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securityfocus.com/bid/90696
http://www.securitytracker.com/id/1035890
http://www.ubuntu.com/usn/USN-2994-1
http://xmlsoft.org/news.html
https://access.redhat.com/errata/RHSA-2016:1292
https://bugzilla.gnome.org/show_bug.cgi?id=759020
https://git.gnome.org/browse/libxml2/commit/?id=38eae571111db3b43ffdeb05487c9f60551906fb
https://kc.mcafee.com/corporate/index?page=content&id=SB10170
https://support.apple.com/HT206567 Vendor Advisory
https://support.apple.com/HT206568 Vendor Advisory
https://www.debian.org/security/2016/dsa-3593
https://www.tenable.com/security/tns-2016-18

Track CVE-2016-1835 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2016-1835), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.