CVEvulnerability
CVE-2020-11741
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-04-14
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.9 MEDIUM — AV:L/AC:M/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-909
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.
Affected configurations
• xen xen (<= 4.13.0)
• xen xen 4.13.0
• fedoraproject fedora 30
• fedoraproject fedora 31
• fedoraproject fedora 32
• debian debian linux 10.0
• opensuse leap 15.1
Related
Weakness · CWE (1)
- CWE-909 Missing Initialization of Resource weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00006.html Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/04/14/1 Mailing List, Patch, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-313.html Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5M2XRNCHOGGTJQBZQJ7DCV6ZNAKN3LE2/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVTP4OYHCTRU3ONFJOFJQVNDFB25KLLG/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YMAW7D2MP6RE4BFI5BZWOBBWGY3VSOFN/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202005-08 Third Party Advisory
- https://www.debian.org/security/2020/dsa-4723 Third Party Advisory
- https://xenbits.xen.org/xsa/advisory-313.html Patch, Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00006.html Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/04/14/1 Mailing List, Patch, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-313.html Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5M2XRNCHOGGTJQBZQJ7DCV6ZNAKN3LE2/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVTP4OYHCTRU3ONFJOFJQVNDFB25KLLG/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YMAW7D2MP6RE4BFI5BZWOBBWGY3VSOFN/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202005-08 Third Party Advisory
- https://www.debian.org/security/2020/dsa-4723 Third Party Advisory
- https://xenbits.xen.org/xsa/advisory-313.html Patch, Vendor Advisory