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Vulnerability Details : CVE-2020-14345

A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Publish Date : 2020-09-15 Last Update Date : 2021-01-15
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- CVSS Scores & Vulnerability Types

CVSS Score
4.6
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Overflow
CWE ID 119

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2020:4910: xorg-x11-server security update (Important) oval:com.redhat.rhsa:def:20204910 unix
RHSA-2020:4953: xorg-x11-server security update (Important) oval:com.redhat.rhsa:def:20204953 unix
RHSA-2021:1804: userspace graphics, xorg-x11, and mesa security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20211804 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2020-14345

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 14.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 16.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 18.04 * * * Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 20.04 * * * Version Details Vulnerabilities
5 Application X.org X Server * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 4
X.org X Server 1

- References For CVE-2020-14345

https://bugzilla.redhat.com/show_bug.cgi?id=1862241
https://lists.x.org/archives/xorg-announce/2020-August/003058.html
https://usn.ubuntu.com/4490-1/
UBUNTU USN-4490-1
https://usn.ubuntu.com/4488-2/
UBUNTU USN-4488-2
https://security.gentoo.org/glsa/202012-01
GENTOO GLSA-202012-01
https://www.zerodayinitiative.com/advisories/ZDI-20-1416/
http://www.openwall.com/lists/oss-security/2021/01/15/1
MLIST [oss-security] 20210115 Re: [vs] Cinnamon lock screen bypass in multiple distributions

- Metasploit Modules Related To CVE-2020-14345

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