Vulnerability in Arista Eos
CVE-2015-6855
hw/ide/core.c in QEMU does not properly restrict the commands accepted by an ATAPI device, which allows guest users to cause a denial of service or possibly have unspecified other impact via certain IDE commands, as demonstrated by a WIN_READ_NATIVE_MAX command to an empty drive, which triggers a divide-by-zero error and instance crash.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.035 (88.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.035 · change: 0.000
Affected products
- Arista Eos
- Qemu
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.04
- Debian Linux — versions 7.0, 8.0, 9.0
- Fedoraproject Fedora — versions 21, 22, 23
- SUSE Linux Enterprise Desktop — versions 12
- SUSE Linux Enterprise Server — versions 12
Weakness classification (CWE)
References
- www.debian.org/security/2015/dsa-3361 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/76691 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.fedoraproject.org/pipermail/package-announce/2015-October/169036.html (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/pipermail/package-announce/2015-September/167369.html (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/pipermail/package-announce/2015-October/169341.html (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2015/09/10/2 (mailing-list, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2015-10/msg00019.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2015/09/10/1 (mailing-list, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/pipermail/package-announce/2015-October/169039.html (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2015/dsa-3362 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2015-6855?
- CVE-2015-6855 is a high-severity vulnerability in Arista Eos, classified under Divide By Zero. CVSS score: 7.5/10. Published 2015-11-06.
- How severe is CVE-2015-6855?
- High severity. CVSS v3 base score is 7.5 out of 10.