CVE-2015-7972

LOW

Description

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."

References

http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html

http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html

http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html

http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html

http://support.citrix.com/article/CTX202404

http://www.debian.org/security/2015/dsa-3414

http://www.securityfocus.com/bid/77365

http://www.securitytracker.com/id/1034036

http://xenbits.xen.org/xsa/advisory-153.html

https://security.gentoo.org/glsa/201604-03

Details

Source: MITRE

Published: 2015-10-30

Updated: 2018-10-30

Type: CWE-399

Risk Information

CVSS v2.0

Base Score: 2.1

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

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

Tenable Plugins

View all (14 total)

IDNameProductFamilySeverity
91198Debian DLA-479-1 : xen security updateNessusDebian Local Security Checks
medium
90380GLSA-201604-03 : Xen: Multiple vulnerabilities (Venom)NessusGentoo Local Security Checks
high
89359Fedora 23 : xen-4.5.1-14.fc23 (2015-a931b02be2)NessusFedora Local Security Checks
high
89278Fedora 22 : xen-4.5.1-14.fc22 (2015-6f6b79efe2)NessusFedora Local Security Checks
high
89177Fedora 21 : xen-4.4.3-7.fc21 (2015-242be2c240)NessusFedora Local Security Checks
high
87650SUSE SLED11 / SLES11 Security Update : xen (SUSE-SU-2015:2338-1)NessusSuSE Local Security Checks
high
87591SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2015:2328-1)NessusSuSE Local Security Checks
high
87590SUSE SLED11 / SLES11 Security Update : xen (SUSE-SU-2015:2326-1)NessusSuSE Local Security Checks
high
87528SUSE SLES11 Security Update : xen (SUSE-SU-2015:2306-1)NessusSuSE Local Security Checks
medium
87288Debian DSA-3414-1 : xen - security updateNessusDebian Local Security Checks
medium
86961openSUSE Security Update : xen (openSUSE-2015-730)NessusSuSE Local Security Checks
high
86909openSUSE Security Update : xen (openSUSE-2015-750)NessusSuSE Local Security Checks
high
86863openSUSE Security Update : xen (openSUSE-2015-729)NessusSuSE Local Security Checks
high
86839FreeBSD : xen-tools -- populate-on-demand balloon size inaccuracy can crash guests (c0e76d33-8821-11e5-ab94-002590263bf5)NessusFreeBSD Local Security Checks
low