Out-of-bounds write in Linux kernel



Published: 2018-07-25 | Updated: 2019-04-01
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-10880
CWE-ID CWE-787
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe
Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Out-of-bounds write

EUVDB-ID: #VU28382

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-10880

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.

Linux kernel is vulnerable to a stack-out-of-bounds write in the ext4 filesystem code when mounting and writing to a crafted ext4 image in ext4_update_inline_data(). An attacker could use this to cause a system crash and a denial of service.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 4.9 - 4.9.130

External links

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.131


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.



###SIDEBAR###