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Vulnerability Details : CVE-2020-11741

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.
Publish Date : 2020-04-14 Last Update Date : 2021-07-21
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- CVSS Scores & Vulnerability Types

CVSS Score
6.9
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceGain privilegesObtain Information
CWE ID 862

- Products Affected By CVE-2020-11741

# Product Type Vendor Product Version Update Edition Language
1 OS Fedoraproject Fedora 32 * * * Version Details Vulnerabilities
2 OS XEN XEN * * * * Version Details Vulnerabilities
3 OS XEN XEN 4.13.0 RC1 * * Version Details Vulnerabilities
4 OS XEN XEN 4.13.0 RC2 * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Fedoraproject Fedora 1
XEN XEN 3

- References For CVE-2020-11741

https://www.debian.org/security/2020/dsa-4723
DEBIAN DSA-4723
http://www.openwall.com/lists/oss-security/2020/04/14/1
MLIST [oss-security] 20200414 Xen Security Advisory 313 v3 (CVE-2020-11740,CVE-2020-11741) - multiple xenoprof issues
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YMAW7D2MP6RE4BFI5BZWOBBWGY3VSOFN/
FEDORA FEDORA-2020-440457afe4
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5M2XRNCHOGGTJQBZQJ7DCV6ZNAKN3LE2/
FEDORA FEDORA-2020-295ed0b1e0
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00006.html
SUSE openSUSE-SU-2020:0599
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NVTP4OYHCTRU3ONFJOFJQVNDFB25KLLG/
FEDORA FEDORA-2020-cbc3149753
https://security.gentoo.org/glsa/202005-08
GENTOO GLSA-202005-08
https://xenbits.xen.org/xsa/advisory-313.html
http://xenbits.xen.org/xsa/advisory-313.html CONFIRM

- Metasploit Modules Related To CVE-2020-11741

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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