Heap-based Buffer Overflow in libxml2 Affecting Apple iOS and OS X
CVE-2016-1834

7.8HIGH

Key Information:

Vendor

Canonical

Vendor
CVE Published:
20 May 2016

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2016-1834?

A heap-based buffer overflow vulnerability in the xmlStrncat function in libxml2 versions prior to 2.9.4 allows attackers to exploit weakly validated XML documents. This vulnerability enables remote actors to execute arbitrary code or instigate a denial of service through crafted XML input, impacting affected Apple products such as iOS and OSX. Security patches are critical for mitigating associated risks of memory corruption and unauthorized access.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.