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 |
| 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 |
Configurations
History
21 Nov 2024, 02:38
| Type | Values Removed | Values Added |
|---|---|---|
| References | () http://www.openwall.com/lists/oss-security/2015/12/28/6 - Mailing List, Third Party Advisory | |
| References | () http://www.openwall.com/lists/oss-security/2015/12/29/1 - Mailing List, Third Party Advisory | |
| References | () http://www.securityfocus.com/bid/79706 - Third Party Advisory, VDB Entry | |
| References | () https://bugzilla.redhat.com/show_bug.cgi?id=1286971 - Issue Tracking | |
| References | () https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg04629.html - Patch, Vendor Advisory | |
| References | () https://security.gentoo.org/glsa/201602-01 - Third Party Advisory |
Information
Published : 2016-12-29 22:59
Updated : 2024-11-21 02:38
NVD link : CVE-2015-8701
Mitre link : CVE-2015-8701
CVE.ORG link : CVE-2015-8701
JSON object : View
Products Affected
qemu
- qemu
CWE
CWE-193
Off-by-one Error