CVE-2016-9379

The pygrub boot loader emulator in Xen, when S-expression output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via string quotes and S-expressions in the bootloader configuration file.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.9 HIGH
LOCAL
LOW
HIGH
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 28%
VendorProductVersion
xenxen
*
citrixxenserver
6.0.2
citrixxenserver
6.2.0
citrixxenserver
6.5
citrixxenserver
7.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
xen
bullseye
4.14.6-1
fixed
bullseye (security)
4.14.5+94-ge49571868d-1
fixed
bookworm
4.17.3+10-g091466ba55-1~deb12u1
fixed
sid
4.17.3+36-g54dacb5c02-1
fixed
trixie
4.17.3+36-g54dacb5c02-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
xen
zesty
Fixed 4.8.0-1ubuntu1
released
yakkety
Fixed 4.7.0-0ubuntu2.1
released
xenial
Fixed 4.6.0-1ubuntu4.3
released
trusty
Fixed 4.4.2-0ubuntu0.14.04.9
released
precise
Fixed 4.1.6.1-0ubuntu0.12.04.13
released
Common Weakness Enumeration
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
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