// For flags

CVE-2016-7910

kernel: Use after free in seq file

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Use-after-free vulnerability in the disk_seqf_stop function in block/genhd.c in the Linux kernel before 4.7.1 allows local users to gain privileges by leveraging the execution of a certain stop operation even if the corresponding start operation had failed.

Vulnerabilidad de uso después de liberación de memoria en la función disk_seqf_stop en block/genhd.c en el kernel de Linux en versiones anteriores a 4.7.1 permite a usuarios locales obtener privilegios aprovechando la ejecución de una cierta operación de parada incluso si la operación de arranque correspondiente hubiera fallado.

A flaw was found in the Linux kernel's implementation of seq_file where a local attacker could manipulate memory in the put() function pointer. This could lead to memory corruption and possible privileged escalation.

*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
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
Attack Vector
Local
Attack Complexity
High
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-09-09 CVE Reserved
  • 2016-11-16 CVE Published
  • 2024-08-06 CVE Updated
  • 2024-08-06 First Exploit
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 3.2.84
Search vendor "Linux" for product "Linux Kernel" and version " < 3.2.84"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.3 < 3.10.103
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.3 < 3.10.103"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.11 < 3.12.63
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 3.12.63"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.13 < 3.14.76
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.13 < 3.14.76"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.15 < 3.16.39
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.15 < 3.16.39"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.17 < 3.18.40
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.17 < 3.18.40"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.19 < 4.1.31
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 4.1.31"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.2 < 4.4.18
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 4.4.18"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.5 < 4.6.7
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.5 < 4.6.7"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.7 < 4.7.1
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.7 < 4.7.1"
-
Affected