CVE ID:	CVE-2020-11741
Description:	An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users (with active profiling) to obtain sensitive information about other guests, cause a denial of service, or possibly gain privileges. For guests for which "active" profiling was enabled by the administrator, the xenoprof code uses the standard Xen shared ring structure. Unfortunately, this code did not treat the guest as a potential adversary: it trusts the guest not to modify buffer size information or modify head / tail pointers in unexpected ways. This can crash the host (DoS). Privilege escalation cannot be ruled out.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2020-11741 Debian Security Information: DSA-4723 (Google Search) https://www.debian.org/security/2020/dsa-4723 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5M2XRNCHOGGTJQBZQJ7DCV6ZNAKN3LE2/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YMAW7D2MP6RE4BFI5BZWOBBWGY3VSOFN/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NVTP4OYHCTRU3ONFJOFJQVNDFB25KLLG/ https://security.gentoo.org/glsa/202005-08 https://xenbits.xen.org/xsa/advisory-313.html http://www.openwall.com/lists/oss-security/2020/04/14/1 SuSE Security Announcement: openSUSE-SU-2020:0599 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00006.html