Fedora 28 update for xen

Published: 2018-04-25 | Updated: 2025-04-24

Risk	High
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2018-10471 CVE-2018-10472
CWE-ID	CWE-787 CWE-200
Exploitation vector	Local network
Public exploit	N/A
Vulnerable software	Fedora Operating systems & Components / Operating system xen Operating systems & Components / Operating system package or component
Vendor	Fedoraproject

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU12542

Risk: High

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:Amber]

CVE-ID: CVE-2018-10471

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

Exploit availability: No

Description

The vulnerability allows an adjacent attacker to cause DoS condition or execute arbitrary code on the target system.

The weakness exists due to an unconditional write attempt of the value zero to an address near 2^64. An adjacent attacker can cause the service to crash or execute arbitrary code via unexpected INT 80 processing.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 28

xen: before 4.10.0-9.fc28

CPE2.3

External links

https://bodhi.fedoraproject.org/updates/FEDORA-2018-dbebca30d0

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.

2) Error handling

EUVDB-ID: #VU12288

Risk: Low

CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-10471

CWE-ID: N/A

Exploit availability: No

Description

The vulnerability allows an adjacent attacker to cause DoS condition on the target system.

The weakness exists due to error handling flaw. An adjacent attacker can cause the service to crash.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 28

xen: before 4.10.0-9.fc28

CPE2.3

External links

https://bodhi.fedoraproject.org/updates/FEDORA-2018-dbebca30d0

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.

3) Information disclosure

EUVDB-ID: #VU12543

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-10472

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows an adjacent attacker to obtain potentially sensitive information on the target system.

The weakness exists in certain configurations due to improper information control. An adjacent attacker can read arbitrary dom0 files via QMP live insertion of a CDROM, in conjunction with specifying the target file as the backing file of a snapshot.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 28

xen: before 4.10.0-9.fc28

CPE2.3

External links

https://bodhi.fedoraproject.org/updates/FEDORA-2018-dbebca30d0

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.

4) Information disclosure

EUVDB-ID: #VU12287

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-10472

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows an adjacent attacker to obtain potentially sensitive information.

The weakness exists due to improper information control. An adjacent attacker can supply a specially crafted CDROM image to read arbitrary files or device nodes on the dom0 filesystem with the privileges of the quem devicemodel process.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 28

xen: before 4.10.0-9.fc28

CPE2.3

External links

https://bodhi.fedoraproject.org/updates/FEDORA-2018-dbebca30d0

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.