CVE-2023-6817
Use-after-free in Linux kernel's netfilter: nf_tables component
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_pipapo_walk did not skip inactive elements during set walk which could lead double deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-after-free. We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a.
Una vulnerabilidad de use after free en el componente netfilter: nf_tables del kernel de Linux puede explotarse para lograr una escalada de privilegios local. La función nft_pipapo_walk no omitió elementos inactivos durante el recorrido establecido, lo que podría provocar desactivaciones dobles de elementos PIPAPO (Políticas de paquetes de pila), lo que llevaría a un use-after-free. Recomendamos actualizar después del commit 317eb9685095678f2c9f5a8189de698c5354316a.
A use-after-free flaw was found in the Netfilter subsystem in the Linux kernel via the nft_pipapo_walk function. This issue may allow a local user with CAP_NET_ADMIN capability to trigger an application crash, information disclosure, or local privilege escalation.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2023-12-14 CVE Reserved
- 2023-12-18 CVE Published
- 2023-12-22 EPSS Updated
- 2024-08-02 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-416: Use After Free
CAPEC
- CAPEC-233: Privilege Escalation
References (8)
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-6817 | 2024-05-28 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2255139 | 2024-05-28 |
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" | >= 5.6 < 5.10.204 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.6 < 5.10.204" | - |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.11 < 5.15.143 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 5.15.143" | - |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.16 < 6.1.68 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.16 < 6.1.68" | - |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.2 < 6.6.7 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.2 < 6.6.7" | - |
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.7 Search vendor "Linux" for product "Linux Kernel" and version "6.7" | rc1 |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.7 Search vendor "Linux" for product "Linux Kernel" and version "6.7" | rc2 |
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.7 Search vendor "Linux" for product "Linux Kernel" and version "6.7" | rc3 |
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.7 Search vendor "Linux" for product "Linux Kernel" and version "6.7" | rc4 |
Affected
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