Integer Underflow Vulnerability in X.Org Server by X.Org Foundation
CVE-2020-14361

7.8HIGH

Key Information:

Vendor

X.org

Status
Xorg-x11-server
Vendor
CVE Published:
15 September 2020

What is CVE-2020-14361?

An integer underflow has been identified in X.Org Server versions prior to 1.20.9. This flaw can lead to a heap-buffer overflow, allowing unauthorized privilege escalation. Attackers exploiting this vulnerability may compromise data confidentiality and system integrity, potentially affecting overall system availability. It is crucial for users running affected versions of X.Org Server to implement necessary updates to safeguard their systems.

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Affected Version(s)

xorg-x11-server before xorg-x11-server 1.20.9

References

https://lists.x.org/archives/xorg-announce/2020-August/00...
https://bugzilla.redhat.com/show_bug.cgi?id=1869142
https://usn.ubuntu.com/4488-2/
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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