CVE Vulnerability
CVE-2020-25599
An issue was discovered in Xen through 4.14.x. There are evtchn_reset() race conditions. Uses of EVTCHNOP_reset (potentially by a guest on itself) or XEN_DOMCTL_soft_reset (by itself covered by XSA-77) can lead to the violation of various internal assumptions. This may lead to out of bounds memory accesses or triggering of bug checks. In particular, x86 PV guests may be able to elevate their privilege to that of the host. Host and guest crashes are also possible, leading to a Denial of Service (DoS). Information leaks cannot be ruled out. All Xen versions from 4.5 onwards are vulnerable. Xen versions 4.4 and earlier are not vulnerable.
References
| Link | Resource |
|---|---|
| https://xenbits.xen.org/xsa/advisory-343.html | Patch Vendor Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4JRXMKEMQRQYWYEPHVBIWUEAVQ3LU4FN/ | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DA633Y3G5KX7MKRN4PFEGM3IVTJMBEOM/ | Mailing List Third Party Advisory |
| https://www.debian.org/security/2020/dsa-4769 | Third Party Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00008.html | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJZERRBJN6E6STDCHT4JHP4MI6TKBCJE/ | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202011-06 | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2020/12/16/5 | Mailing List Third Party Advisory |
Configurations
Configuration 1
|
Information
Published : 2020-09-23 10:15
Updated : 2022-04-28 06:19
NVD link : CVE-2020-25599
Mitre link : CVE-2020-25599
Products Affected
No products.