// For flags

CVE-2016-1833

libxml2: Heap-based buffer overread in htmlCurrentChar

Severity Score

5.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The htmlCurrentChar 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.

La función htmlCurrentChar en libxml2 en versiones anteriores a 2.9.4, como se utiliza en Apple iOS en versiones anteriores a 9.3.2, OS X en versiones anteriores a 10.11.5, tvOS en versiones anteriores a 9.2.1 y watchOS en versiones anteriores a 2.2.1, permite a atacantes remotos provocar una denegación de servicio (sobre lectura de buffer basado en memoria dinámica) a través de un documento XML manipulado.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-01-13 CVE Reserved
  • 2016-05-17 CVE Published
  • 2023-08-21 EPSS Updated
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-122: Heap-based Buffer Overflow
  • CWE-125: Out-of-bounds Read
CAPEC
References (25)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apple
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Iphone Os
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< 9.3.2
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-
Affected
Apple
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Mac Os X
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< 10.11.5
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-
Affected
Apple
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Tvos
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< 9.2.1
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-
Affected
Apple
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Watchos
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< 2.2.1
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-
Affected
Debian
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Debian Linux
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8.0
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-
Affected
Canonical
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Ubuntu Linux
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12.04
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lts
Affected
Canonical
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Ubuntu Linux
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14.04
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lts
Affected
Canonical
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Ubuntu Linux
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15.10
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-
Affected
Canonical
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Ubuntu Linux
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16.04
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lts
Affected
Redhat
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Enterprise Linux Desktop
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6.0
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-
Affected
Redhat
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Enterprise Linux Desktop
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7.0
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-
Affected
Redhat
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Enterprise Linux Server
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6.0
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-
Affected
Redhat
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Enterprise Linux Server
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7.0
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-
Affected
Redhat
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Enterprise Linux Server Aus
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7.2
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-
Affected
Redhat
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Enterprise Linux Server Aus
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7.3
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-
Affected
Redhat
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Enterprise Linux Server Aus
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7.4
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Affected
Redhat
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Enterprise Linux Server Aus
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7.6
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-
Affected
Redhat
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Enterprise Linux Server Eus
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7.2
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-
Affected
Redhat
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Enterprise Linux Server Eus
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7.3
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-
Affected
Redhat
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Enterprise Linux Server Eus
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7.4
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-
Affected
Redhat
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Enterprise Linux Server Eus
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7.5
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Affected
Redhat
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Enterprise Linux Server Eus
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7.6
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-
Affected
Redhat
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Enterprise Linux Server Tus
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7.2
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Affected
Redhat
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Enterprise Linux Server Tus
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7.3
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Affected
Redhat
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Enterprise Linux Server Tus
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7.6
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-
Affected
Redhat
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Enterprise Linux Workstation
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6.0
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-
Affected
Redhat
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Enterprise Linux Workstation
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7.0
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-
Affected
Xmlsoft
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Libxml2
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< 2.9.4
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-
Affected
Mcafee
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Web Gateway
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>= 7.5.0.0 <= 7.5.2.10
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Affected
Mcafee
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Web Gateway
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> 7.6.0.0 <= 7.6.2.3
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-
Affected