// For flags

CVE-2016-1840

libxml2: Heap-buffer-overflow in xmlFAParserPosCharGroup

Severity Score

7.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Heap-based buffer overflow in the xmlFAParsePosCharGroup 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 execute arbitrary code or cause a denial of service (memory corruption) via a crafted XML document.

Desbordamiento del buffer basado en memoria dinámica en la función xmlFAParsePosCharGroup 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 ejecutar un código arbitrario o provocar una denegación de servicio (corrupción de memoria) 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
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
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
  • 2024-01-06 EPSS Updated
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-122: Heap-based Buffer Overflow
CAPEC
References (25)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Debian
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Debian Linux
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8.0
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-
Affected
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
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