Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability
CVE-2023-35001

7.8HIGH

Key Information:

Vendor

Linux
Status
Linux
Vendor
CVE Published:
5 July 2023

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2023-35001?

The nftables component of the Linux Kernel is susceptible to an Out-Of-Bounds read/write vulnerability. This flaw arises from inadequate handling of virtual memory register contents when the CAP_NET_ADMIN capability is present in any user or network namespace. Attackers could exploit this weakness, potentially leading to unauthorized access and manipulation of data within the kernel context.

Affected Version(s)

Linux Kernel Linux v3.13-rc1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-35001
Created by synacktiv

nftables-oob-read-write-exploit-CVE-2023-35001-
Created by syedhafiz1234

Exploit_CVE-2023-35001
Created by mrbrelax

References

https://lore.kernel.org/netfilter-devel/20230705121515.74...
issue-tracking
https://www.openwall.com/lists/oss-security/2023/07/05/3
mailing-list
http://www.openwall.com/lists/oss-security/2023/07/05/3

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Tanguy Dubroca
.
CVE-2023-35001 : Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability