Vulnerability in Qemu
CVE-2015-8701
QEMU (aka Quick Emulator) built with the Rocker switch emulation support is vulnerable to an off-by-one error. It happens while processing transmit (tx) descriptors in 'tx_consume' routine, if a descriptor was to have more than allowed (ROCKER_TX_FRAGS_MAX=16) fragments. A privileged user inside guest could use this flaw to cause memory leakage on the host or crash the QEMU process instance resulting in DoS issue.
EPSS: 0.004 (31.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Qemu
- N/a — versions n/a
Weakness classification (CWE)
References
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- secalert@redhat.com (Vendor Advisory, mailing-list, x_refsource_MLIST, Patch)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Issue Tracking)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2015-8701?
- CVE-2015-8701 is a medium-severity vulnerability in Qemu, classified under Off-by-one Error. CVSS score: 6.5/10. Published 2016-12-29.
- How severe is CVE-2015-8701?
- Medium severity. CVSS v3 base score is 6.5 out of 10.