CVE-2016-4658

Advisory lineage Upstream: 0 Downstream: 16
Modified
Published: 25 Sept 2016, 10:00
Last modified:06 Aug 2024, 00:39

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
10 HIGH
v2.0 (nvd)
EPSS Score
15.39% MEDIUM
15% probability -3.95%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

25 Sept 2016, 10:00
Published
Vulnerability first disclosed
06 Aug 2024, 00:39
Last Modified
Vulnerability information updated

Description

xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory corruption) via a crafted XML document.

CVSS Metrics

  • v3.0•CRITICAL•Score: 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 10AV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 15.39%• Percentile: 95%

Techniques & Countermeasures

  • CWE-119•Improper Restriction of Operations within the Bounds of a Memory Buffer

    The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Affected Systems

  • apple•iphone_os

    < 10.0

  • apple•mac_os_x

    < 10.12

  • apple•tvos

    < 10.0

  • apple•watchos

    < 3.0

  • xmlsoft•libxml2

    < 2.9.5

References (13)