Input validation error in xen (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2016-9385 |
| CWE-ID | CWE-20 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
xen (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Input validation error
EUVDB-ID: #VU32218
Risk: Low
CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-9385
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a local privileged user to a crash the entire system.
The x86 segment base write emulation functionality in Xen 4.4.x through 4.7.x allows local x86 PV guest OS administrators to cause a denial of service (host crash) by leveraging lack of canonical address checks.
MitigationInstall update from vendor's website.
Vulnerable software versionsxen (Alpine package): 4.4.1-r0 - 4.5.3-r1
External linkshttp://git.alpinelinux.org/aports/commit/?id=473c36a9c87f281b12c59f519ab621ff620a7062
http://git.alpinelinux.org/aports/commit/?id=9bd4f34be948ebfa595d57f19e164b329c94ef70
http://git.alpinelinux.org/aports/commit/?id=ef362e4b0451d7206239a58f9ca6c6389652b7a9
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.
