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CVE-2020-25697

Date: May 26, 2021

A privilege escalation flaw was found in the Xorg-x11-server due to a lack of authentication for X11 clients. This flaw allows an attacker to take control of an X application by impersonating the server it is expecting to connect to.

Severity Score

Related Resources (10)

http://www.openwall.com/lists/oss-security/2020/11/09/3,
https://bugzilla.redhat.com/show_bug.cgi?id=1895295,
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
https://access.redhat.com/security/cve/CVE-2020-25697
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772@%3Cdev.mina.apache.org%3E
https://nvd.nist.gov/vuln/detail/CVE-2020-25697
http://www.openwall.com/lists/oss-security/2020/11/09/3
https://seclists.org/oss-sec/2020/q4/105
https://bugzilla.redhat.com/show_bug.cgi?id=1895295
https://www.mend.io/vulnerability-database/CVE-2020-25697

Severity Score

Weakness Type (CWE)

Missing Authentication for Critical Function

CWE-306

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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