Fedora 30 update for kernel, kernel-headers



| Updated: 2025-04-25
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-14821
CWE-ID CWE-787
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

kernel-headers
Operating systems & Components / Operating system package or component

kernel
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Out-of-bounds write

EUVDB-ID: #VU21255

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-14821

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

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in the KVM coalesced MMIO support functionality due to incorrect processing of shared indexes. A local user can run a specially crafted application to trigger an out-of-bounds write error and write data to arbitrary address in the kernel memory.

Successful vulnerability exploitation may allow an attacker to execute arbitrary code on the system with root privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 30

kernel-headers: before 5.2.16-200.fc30

kernel: before 5.2.16-200.fc30

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2019-15e141c6a7


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###