// For flags

CVE-2016-2851

libotr 4.1.0 - Memory Corruption

Severity Score

9.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

4
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Integer overflow in proto.c in libotr before 4.1.1 on 64-bit platforms allows remote attackers to cause a denial of service (memory corruption and application crash) or execute arbitrary code via a series of large OTR messages, which triggers a heap-based buffer overflow.

Desbordamiento de entero en proto.c en libotr en versiones anteriores a 4.1.1 en plataformas de 64-bit permite a atacantes remotos causar denegación de servicio (corrupción de memoria y caída de aplicación) o ejecutar código arbitrario a través de una serie de mensajes OTR grandes, lo que desencadena un desbordamiento de buffer basado en memoria dinámica.

A remote attacker may crash or execute arbitrary code in libotr by sending large OTR messages. While processing specially crafted messages, attacker controlled data on the heap is written out of bounds. No special user interaction or authorization is necessary in default configurations. libotr versions 4.1.0 and below are affected.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-03-06 CVE Reserved
  • 2016-03-11 CVE Published
  • 2023-09-18 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
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
7.0
Search vendor "Debian" for product "Debian Linux" and version "7.0"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
8.0
Search vendor "Debian" for product "Debian Linux" and version "8.0"
-
Affected
Opensuse
Search vendor "Opensuse"
Leap
Search vendor "Opensuse" for product "Leap"
42.1
Search vendor "Opensuse" for product "Leap" and version "42.1"
-
Affected
Opensuse
Search vendor "Opensuse"
Opensuse
Search vendor "Opensuse" for product "Opensuse"
13.2
Search vendor "Opensuse" for product "Opensuse" and version "13.2"
-
Affected
Cypherpunks
Search vendor "Cypherpunks"
Libotr
Search vendor "Cypherpunks" for product "Libotr"
<= 4.1.0
Search vendor "Cypherpunks" for product "Libotr" and version " <= 4.1.0"
-
Affected