Out-of-bounds write in Linux kernel
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2018-10883 |
| 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: #VU28377
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-10883
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bounds write in jbd2_journal_dirty_metadata(), a denial of service, and a system crash by mounting and operating on a crafted ext4 filesystem image.
MitigationInstall update from vendor's website.
Vulnerable software versionsLinux kernel: 4.4 - 4.17.5
External linkshttp://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.55
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.6
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.140
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.135
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.164
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.
