Public exploit available
Public proof-of-concept or exploit code exists (ExploitDB / Metasploit / Nuclei).

CVE-2016-1839

CWE-125 — Out-of-bounds ReadCWE-122 — Heap-based Buffer OverflowCWE-20 — Improper Input Validation22 documents12 sources
Severity
5.5MEDIUM
EPSS
10.8%
top 6.66%
CISA KEV
Not in KEV
Exploit
PoC available
Public exploit / PoC exists
Affected products
14
Apple Iphone OSApple MAC OS XApple Tvos+11 more
Timeline
PublishedMay 20
Latest updateMay 14

Description

The xmlDictAddString 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 (heap-based buffer over-read) via a crafted XML document.

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages10 packages

▶NVDapple/tvos< 9.2.1
▶NVDapple/watchos< 2.2.1
▶NVDapple/mac_os_x< 10.11.5
▶NVDapple/iphone_os< 9.3.2
▶NVDxmlsoft/libxml2< 2.9.4

Also affects: Debian Linux 8.0, Ubuntu Linux 12.04, 14.04, 15.10, 16.04, Enterprise Linux 7.2, 7.3, 7.4, 7.6, 7.5

Patches

Patch: git.gnome.org ↗Patch: kc.mcafee.com ↗Patch: git.gnome.org ↗

🔴Vulnerability Details

4
GHSA
GHSA-768p-297v-97cm: The xmlDictAddString function in libxml2 before 2↗2022-05-14
▶
GHSA
Out-of-bounds read in nokogiri↗2017-12-13
▶
OSV
CVE-2016-1839: The xmlDictAddString function in libxml2 before 2↗2016-05-20
▶
CVEList
CVE-2016-1839: The xmlDictAddString function in libxml2 before 2↗2016-05-20
▶

💥Exploits & PoCs

1
Exploit-DB
libxml2 - xmlDictAddString Heap Buffer Overread↗2016-02-24
▶

📋Vendor Advisories

11
Android
CVE-2016-1839: Android Security Bulletin 2017-06-01 CVE: CVE-2016-1839 Severity: MEDIUM Type: DoS Affected AOSP versions: 4↗2017-06-01
▶
Red Hat
libxml2: Heap-based buffer over-read in function xmlDictAddString↗2017-05-15
▶
Ubuntu
libxml2 vulnerabilities↗2016-06-06
▶
Red Hat
libxml2: Heap-based buffer overread in xmlDictAddString↗2016-05-23
▶
Red Hat
libxml2: heap-buffer overread in dict.c↗2016-01-26
▶

💬Community

5
Bugzilla
CVE-2017-9050 libxml2: Heap-based buffer over-read in function xmlDictAddString↗2017-05-19
▶
Bugzilla
CVE-2016-1762 CVE-2016-1833 CVE-2016-1834 CVE-2016-1835 CVE-2016-1836 CVE-2016-1837 CVE-2016-1838 CVE-2016-1839 CVE-2016-1840 CVE-2016-4447 CVE-2016-4448 CVE-2016-4449 libxml2: various flaws [fedora-a↗2016-06-24
▶
Bugzilla
CVE-2016-1762 CVE-2016-1833 CVE-2016-1834 CVE-2016-1835 CVE-2016-1836 CVE-2016-1837 CVE-2016-1838 CVE-2016-1839 CVE-2016-1840 CVE-2016-4447 CVE-2016-4448 CVE-2016-4449 mingw-libxml2: various flaws [fe↗2016-06-24
▶
Bugzilla
CVE-2016-1839 libxml2: Heap-based buffer overread in xmlDictAddString↗2016-05-23
▶
Bugzilla
CVE-2015-8806 libxml2: heap-buffer overread in dict.c↗2016-02-04
▶
CVE-2016-1839 (MEDIUM CVSS 5.5) | The xmlDictAddString function in li | cvebase.io