Out-of-bounds read in Linux kernel ipv4

Published: 2024-05-31 | Updated: 2025-05-14

Risk	Low
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2019-25160
CWE-ID	CWE-125
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) Out-of-bounds read

EUVDB-ID: #VU90360

Risk: Low

CVSSv4.0: 4.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-25160

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to read data or crash the application.

The vulnerability exists due to an out-of-bounds read error within the cipso_v4_bitmap_walk() and cipso_v4_map_lvl_valid() functions in net/ipv4/cipso_ipv4.c. A local user can read data or crash the application.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 3.18 - 4.20.14

CPE2.3

External links

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.