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.
References
Link | Resource |
---|---|
http://www.openwall.com/lists/oss-security/2015/12/28/6 | Mailing List Third Party Advisory |
http://www.openwall.com/lists/oss-security/2015/12/29/1 | Mailing List Third Party Advisory |
http://www.securityfocus.com/bid/79706 | Third Party Advisory VDB Entry |
https://bugzilla.redhat.com/show_bug.cgi?id=1286971 | Issue Tracking |
https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg04629.html | Patch Vendor Advisory |
https://security.gentoo.org/glsa/201602-01 | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: redhat
Published: 2016-12-29T22:00:00
Updated: 2017-06-30T16:57:01
Reserved: 2015-12-29T00:00:00
Link: CVE-2015-8701
JSON object: View
NVD Information
Status : Analyzed
Published: 2016-12-29T22:59:00.153
Modified: 2020-11-10T18:53:53.663
Link: CVE-2015-8701
JSON object: View
Redhat Information
No data.
CWE