Resource management error in xen (Alpine package)



Published: 2020-09-23
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-25602
CWE-ID CWE-399
Exploitation vector Network
Public exploit N/A
Vulnerable software
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xen (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource management error

EUVDB-ID: #VU46968

Risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25602

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the application when processing guest requests to the "MISC_ENABLE MSR" register in Xen. A remote privileged PV guest can run a specially crafted program and crash Xen.

Only non-non-Intel x86 systems are affected.

Mitigation

Install update from vendor's website.

Vulnerable software versions

xen (Alpine package): 4.11.0-r0 - 4.14.0-r0

External links

http://git.alpinelinux.org/aports/commit/?id=f48590ae54ca9e0c3bf6b3fae3e6b065f14223e3


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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



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