CVE-2016-9380

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

The pygrub boot loader emulator in Xen, when nul-delimited output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via NUL bytes in the bootloader configuration file.

References

http://www.securityfocus.com/bid/94473

http://www.securitytracker.com/id/1037347

http://xenbits.xen.org/xsa/advisory-198.html

http://xenbits.xen.org/xsa/xsa198.patch

https://security.gentoo.org/glsa/201612-56

https://support.citrix.com/article/CTX218775

Details

Source: MITRE

Published: 2017-01-23

Updated: 2017-07-01

Type: CWE-20

Risk Information

CVSS v2

Base Score: 4.6

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

Impact Score: 5.8

Exploitability Score: 1.1

Severity: HIGH

Tenable Plugins

View all (22 total)

IDNameProductFamilySeverity
103830OracleVM 3.4 : xen (OVMSA-2017-0153)NessusOracleVM Local Security Checks
critical
96253openSUSE Security Update : xen (openSUSE-2017-5)NessusSuSE Local Security Checks
high
96252openSUSE Security Update : xen (openSUSE-2017-4)NessusSuSE Local Security Checks
high
96231GLSA-201612-56 : Xen: Multiple vulnerabilitiesNessusGentoo Local Security Checks
high
96150SUSE SLES11 Security Update : xen (SUSE-SU-2016:3273-1)NessusSuSE Local Security Checks
high
96032SUSE SLES11 Security Update : xen (SUSE-SU-2016:3174-1)NessusSuSE Local Security Checks
high
95910openSUSE Security Update : xen (openSUSE-2016-1477)NessusSuSE Local Security Checks
high
95822SUSE SLES12 Security Update : xen (SUSE-SU-2016:3156-1)NessusSuSE Local Security Checks
high
95761SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:3083-1)NessusSuSE Local Security Checks
high
95709SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:3067-1)NessusSuSE Local Security Checks
high
95630Xen Multiple Vulnerabilities (XSA-191 - XSA-198)NessusMisc.
high
95624SUSE SLES11 Security Update : xen (SUSE-SU-2016:3044-1)NessusSuSE Local Security Checks
high
95610Debian DSA-3729-1 : xen - security updateNessusDebian Local Security Checks
high
95539Citrix XenServer Multiple Vulnerabilities (CTX218775)NessusMisc.
high
95511FreeBSD : xen-tools -- delimiter injection vulnerabilities in pygrub (59f79c99-ba4d-11e6-ae1b-002590263bf5)NessusFreeBSD Local Security Checks
high
95493Fedora 25 : xen (2016-999e1a6927)NessusFedora Local Security Checks
high
95492Fedora 24 : xen (2016-95c104a4c6)NessusFedora Local Security Checks
high
95491Fedora 23 : xen (2016-68b71978a1)NessusFedora Local Security Checks
high
95296Debian DLA-720-1 : xen security updateNessusDebian Local Security Checks
high
95280OracleVM 3.2 : xen (OVMSA-2016-0166)NessusOracleVM Local Security Checks
high
95279OracleVM 3.3 : xen (OVMSA-2016-0165)NessusOracleVM Local Security Checks
high
95278OracleVM 3.4 : xen (OVMSA-2016-0164)NessusOracleVM Local Security Checks
high