// For flags

CVE-2016-7942

Ubuntu Security Notice USN-3758-2

Severity Score

9.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The XGetImage function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving image type and geometry, which triggers out-of-bounds read operations.

La función XGetImage en X.org libX11 en versiones anteriores a 1.6.4 podría permitir a servidores remotos X obtener privilegios a través de vectores que involucran tipo de imagen y geometría, que desencadena operaciones de lectura fuera de límites.

Tobias Stoeckmann discovered that libx11 incorrectly handled certain images. An attacker could possibly use this issue to access sensitive information Tobias Stoeckmann discovered that libx11 incorrectly handled certain inputs. An attacker could possibly use this issue to access sensitive information. It was discovered that libx11 incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. Various other issues were also addressed.

*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
  • 2016-09-09 CVE Reserved
  • 2016-11-01 CVE Published
  • 2024-08-06 CVE Updated
  • 2025-07-13 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-264: Permissions, Privileges, and Access Controls
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Fedoraproject
Search vendor "Fedoraproject"
Fedora
Search vendor "Fedoraproject" for product "Fedora"
25
Search vendor "Fedoraproject" for product "Fedora" and version "25"
-
Affected
X.org
Search vendor "X.org"
Libx11
Search vendor "X.org" for product "Libx11"
<= 1.6.3
Search vendor "X.org" for product "Libx11" and version " <= 1.6.3"
-
Affected