CVE-2015-7972
2.1 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
6.8 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
26.9%
The (1) libxl_set_memory_target function in tools/libxl/libxl.c and (2) libxl__build_post function in tools/libxl/libxl_dom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand (PoD) system, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors related to “heavy memory pressure.”
Affected configurations
References
lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html
lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
lists.opensuse.org/opensuse-updates/2015-11/msg00063.html
support.citrix.com/article/CTX202404
www.debian.org/security/2015/dsa-3414
www.securityfocus.com/bid/77365
www.securitytracker.com/id/1034036
xenbits.xen.org/xsa/advisory-153.html
security.gentoo.org/glsa/201604-03
Related
2.1 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
6.8 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
26.9%