Buffer overflow in Citrix Xenserver
CVE-2017-2615
Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt copy in backward mode. A privileged user inside a guest could use this flaw to crash the QEMU process resulting in DoS or potentially execute arbitrary code on the host with privileges of QEMU process on the host.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.036 (89.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · change: 0.000
Affected products
- Citrix Xenserver — versions 6.0.2, 6.2.0, 6.5
- Qemu Display
- Qemu
- Xen — versions 4.7.1
- Debian Linux — versions 7.0
- Red Hat Enterprise Linux Desktop — versions 6.0, 7.0
- Red Hat Enterprise Linux Server — versions 6.0, 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.3, 7.4
- Red Hat Enterprise Linux Server Eus — versions 7.3, 7.4, 7.5
- Red Hat Enterprise Linux Workstation — versions 6.0, 7.0
Weakness classification (CWE)
References
- rhn.redhat.com/errata/RHSA-2017-0329.html (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2017-0334.html (vendor-advisory, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.securitytracker.com/id/1037804 (VDB Entry, Third Party Advisory, vdb-entry)
- rhn.redhat.com/errata/RHSA-2017-0328.html (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/09/msg00007.html (mailing-list)
- www.securityfocus.com/bid/95990 (VDB Entry, Third Party Advisory, vdb-entry)
- rhn.redhat.com/errata/RHSA-2017-0333.html (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201702-27 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2017/02/01/6 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-2615?
- CVE-2017-2615 is a medium-severity vulnerability in Citrix Xenserver, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2018-07-03.
- How severe is CVE-2017-2615?
- Medium severity. CVSS v3 base score is 5.5 out of 10.