CVE-2016-1837

Advisory lineage Upstream: 0 Downstream: 11
Modified
Published: 20 May 2016, 10:00
Last modified:05 Aug 2024, 23:10

Vulnerability Summary

Overall Risk (default)
medium
32/100
CVSS Score
5.5 MEDIUM
v3.0 (nvd)
EPSS Score
0.52% LOW
1% probability -0.26%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

20 May 2016, 10:00
Published
Vulnerability first disclosed
05 Aug 2024, 23:10
Last Modified
Vulnerability information updated

Description

Multiple use-after-free vulnerabilities in the (1) htmlPArsePubidLiteral and (2) htmlParseSystemiteral functions 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, allow remote attackers to cause a denial of service via a crafted XML document.

CVSS Metrics

  • v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 4.3AV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.52%• Percentile: 67%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • apple•iphone_os

    < 9.3.2

  • apple•mac_os_x

    < 10.11.5

  • apple•tvos

    < 9.2.1

  • apple•watchos

    < 2.2.1

  • canonical•ubuntu_linux

    12.04 | 14.04 | 15.10 | 16.04

  • debian•debian_linux

    8.0

  • mcafee•web_gateway

    ≥ 7.5.0.0, ≤ 7.5.2.10 | ≥ 7.6.0.0, ≤ 7.6.2.3

  • redhat•enterprise_linux_desktop

    6.0 | 7.0

  • redhat•enterprise_linux_server

    6.0 | 7.0

  • redhat•enterprise_linux_server_aus

    7.2 | 7.3 | 7.4 | 7.6

  • redhat•enterprise_linux_server_eus

    7.2 | 7.3 | 7.4 | 7.5 | 7.6

  • redhat•enterprise_linux_server_tus

    7.2 | 7.3 | 7.6

  • redhat•enterprise_linux_workstation

    6.0 | 7.0

  • xmlsoft•libxml2

    < 2.9.4

References (22)