Denial of service in Linux kernel skb



| Updated: 2025-05-14
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-52435
CWE-ID CWE-119
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU87748

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-52435

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the skb_segment() function. A local user can trigger memory corruption and crash the kernel.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linux kernel: 6.1 - 6.1.78

CPE2.3 External links

https://git.kernel.org/stable/c/95b3904a261a9f810205da560e802cc326f50d77
https://git.kernel.org/stable/c/23d05d563b7e7b0314e65c8e882bc27eac2da8e7
https://git.kernel.org/stable/c/cd1022eaf87be8e6151435bd4df4c242c347e083
https://git.kernel.org/stable/c/8f8f185643747fbb448de6aab0efa51c679909a3
https://git.kernel.org/stable/c/6c53e8547687d9c767c139cd4b50af566f58c29a
https://git.kernel.org/stable/c/989b0ff35fe5fc9652ee5bafbe8483db6f27b137
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.79


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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