CVEvulnerability
CVE-2015-8701
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2016-12-29
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 2.1 LOW — AV:L/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-193
Description
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.
Affected configurations
• qemu qemu (<= 2.5.1.1)
Related
Weakness · CWE (1)
- CWE-193 Off-by-one Error weakness
References
- 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
- 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