Local Privilege Escalation Vulnerability in X.Org Server from the Fedora Project
CVE-2021-3472

7.8HIGH

Key Information:

Vendor

X.org

Status
Xorg-x11-server
Vendor
CVE Published:
26 April 2021

What is CVE-2021-3472?

A local privilege escalation vulnerability was identified in the X.Org Server, specifically affecting versions prior to 1.20.11. The flaw stems from an integer underflow, which could allow an attacker to gain elevated privileges on the system. This vulnerability poses significant risks to data confidentiality and integrity, as well as overall system availability, potentially leading to unauthorized access or system instability. Users are strongly advised to upgrade to the latest version to mitigate these risks.

Affected Version(s)

xorg-x11-server xorg-x11-server 1.20.11

References

http://www.openwall.com/lists/oss-security/2021/04/13/1
mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2021/04/msg0...
mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisoryx_refsource_FEDORA

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

.