CVE-2015-8701
Published Dec 29, 2016 · Updated Oct 23, 2026
Original summary
Normalized public record · Updated Oct 23, 2026
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.
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
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.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- [oss-security] 20151228 CVE request Qemu net: rocker: fix an incorrect array bounds check ↗
- [qemu-devel] 20151226 [PATCH v2] net: rocker: fix an incorrect array bounds check ↗
- 79706 ↗
- [oss-security] 20151229 Re: CVE request Qemu net: rocker: fix an incorrect array bounds check ↗
- bugzilla.redhat.com ↗
- GLSA-201602-01 ↗
Record history
Published Dec 29, 2016 · Last refreshed Oct 23, 2026