Fedora 27 update for kernel, kernel-headers



| Updated: 2025-04-24
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-15471
CWE-ID CWE-190
Exploitation vector Local network
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) Integer overflow

EUVDB-ID: #VU14475

Risk: Low

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-15471

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows an adjacent attacker to gain elevated privileges on the target system.

The vulnerability exists in xenvif_set_hash_mapping in drivers/net/xen-netback/hash.c due to integer overflow when handling malicious input. An adjacent attacker can supply a malicious or buggy frontend request to set or change mapping of requests to request queues, cause the (usually privileged) backend to make out of bounds memory accesses and gain access to arbitrary data, cause the service to crash or gain elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 27

kernel-headers: before 4.17.17-1.fc27

kernel: before 4.17.17-100.fc27

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2018-79d7c3d2df


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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



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