// For flags

CVE-2023-4004

Kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove()

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially escalate their privileges on the system.

Se encontró una falla de use-after-free en el netfilter del kernel de Linux en la forma en que un usuario activa la función nft_pipapo_remove con el elemento, sin un NFT_SET_EXT_KEY_END. Este problema podría permitir que un usuario local bloquee el sistema o potencialmente aumente sus privilegios en el sistema.

It was discovered that the IP-VLAN network driver for the Linux kernel did not properly initialize memory in some situations, leading to an out-of- bounds write vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. It was discovered that the virtual terminal driver in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). Various other issues were also addressed.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-07-30 CVE Reserved
  • 2023-07-31 CVE Published
  • 2024-11-15 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
CAPEC
References (26)
URL Date SRC
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
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>= 5.6 < 5.10.188
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.6 < 5.10.188"
-
Affected
Linux
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Linux Kernel
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>= 5.11 < 5.15.123
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 5.15.123"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
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>= 5.16 < 6.1.42
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.16 < 6.1.42"
-
Affected
Linux
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Linux Kernel
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>= 6.2 < 6.4.7
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.2 < 6.4.7"
-
Affected
Fedoraproject
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Fedora
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38
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-
Affected
Redhat
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Enterprise Linux
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8.0
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-
Affected
Redhat
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Enterprise Linux
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9.0
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-
Affected
Netapp
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H300s
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--
Affected
Netapp
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H410s
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--
Affected
Netapp
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H500s
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--
Affected
Netapp
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H700s
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--
Affected
Debian
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Debian Linux
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10.0
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-
Affected
Debian
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Debian Linux
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11.0
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-
Affected
Debian
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Debian Linux
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12.0
Search vendor "Debian" for product "Debian Linux" and version "12.0"
-
Affected