VulnerabilityModified
CVE-2015-8701
QEMU (aka Quick Emulator) built with the Rocker switch emulation support is vulnerable to an off-by-one error.
MEDIUM 6.5EPSS 0.39%
Does this matter?
Lower severity and a low EPSS score (0.39%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 0.39% probability · 33th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-193
- Affected
- qemu/qemu
- Source
- secalert@redhat.com
References
- http://www.openwall.com/lists/oss-security/2015/12/28/6Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/12/29/1Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/79706Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1286971Issue Tracking
- https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg04629.htmlPatch, Vendor Advisory
- https://security.gentoo.org/glsa/201602-01Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/12/28/6Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/12/29/1Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/79706Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1286971Issue Tracking
- https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg04629.htmlPatch, Vendor Advisory
- https://security.gentoo.org/glsa/201602-01Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.