High severity · published Sep 15, 2020
CVE-2020-14346
A flaw was found in xorg-x11-server before 1.20.9
7.8
CVSS
0.6%
EPSS
No
On KEV
Description
A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
6.0; 7.0; 8.0 · source: NVD
UL
Ubuntu Linux · Canonical
14.04 · source: NVD
XS
X Server · X.org
before 1.20.9 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-14346
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-14346
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1862246
Mailing List
https://lists.x.org/archives/xorg-announce/2020-August/003058.html
Third Party Advisory
https://security.gentoo.org/glsa/202012-01
Third Party Advisory
https://usn.ubuntu.com/4488-2/
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-1417/
More from Ubuntu Linux
9.8
CVE-2020-11651
SaltStack Salt Authentication Bypass Vulnerability
9.8
CVE-2020-7247
OpenSMTPD Remote Code Execution Vulnerability
9.8
CVE-2019-11043
Underflow in PHP-FPM can lead to RCE
9.8
CVE-2019-16928
Exim Out-of-bounds Write Vulnerability
9.8
CVE-2019-10149
Exim Mail Transfer Agent (MTA) Improper Input Validation