#dos

Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the succes...

Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the succes...

Tenda AX1806 v1.0.0.1 was discovered to contain a stack overflow in the function saveParentControlInfo. This vulnerability allows attackers to cause a Denial of Service (DoS) via the deviceId parameter.

Tenda AX1806 v1.0.0.1 was discovered to contain a stack overflow in the function formSetSysToolDDNS. This vulnerability allows attackers to cause a Denial of Service (DoS) via the ddnsPwd parameter.

Tenda AX1806 v1.0.0.1 was discovered to contain a stack overflow in the function form_fast_setting_wifi_set. This vulnerability allows attackers to cause a Denial of Service (DoS) via the ssid parameter.

Tenda AX1806 v1.0.0.1 was discovered to contain a stack overflow in the function saveParentControlInfo. This vulnerability allows attackers to cause a Denial of Service (DoS) via the deviceName parameter.

Tenda AX1806 v1.0.0.1 was discovered to contain a stack overflow in the function formSetSysToolDDNS. This vulnerability allows attackers to cause a Denial of Service (DoS) via the ddnsDomain parameter.

Tenda AX1806 v1.0.0.1 was discovered to contain a stack overflow in the function formSetSysToolDDNS. This vulnerability allows attackers to cause a Denial of Service (DoS) via the ddnsUser parameter.

Tenda AX1806 v1.0.0.1 was discovered to contain a stack overflow in the function fromSetSysTime. This vulnerability allows attackers to cause a Denial of Service (DoS) via the time parameter.

Tenda AX1806 v1.0.0.1 was discovered to contain a stack overflow in the function formSetSysToolDDNS. This vulnerability allows attackers to cause a Denial of Service (DoS) via the ddnsEn parameter.