Vulnerabilities
By Date By Type Known Exploited Assigners CVSS Scores EPSS Scores Search
Vulnerable Software
Vendors Products Version Search
Metasploit Modules CWE Definitions
Articles Blog

Vulnerability Details : CVE-2021-31535

LookupCol.c in X.Org X through X11R7.7 and libX11 before 1.7.1 might allow remote attackers to execute arbitrary code. The libX11 XLookupColor request (intended for server-side color lookup) contains a flaw allowing a client to send color-name requests with a name longer than the maximum size allowed by the protocol (and also longer than the maximum packet size for normal-sized packets). The user-controlled data exceeding the maximum size is then interpreted by the server as additional X protocol requests and executed, e.g., to disable X server authorization completely. For example, if the victim encounters malicious terminal control sequences for color codes, then the attacker may be able to take full control of the running graphical session.
Vulnerability category: OverflowExecute code
Published 2021-05-27 13:15:08
Updated 2021-09-23 12:45:10
Source MITRE
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-31535

Probability of exploitation activity in the next 30 days: 5.38%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 92 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-31535

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Source
7.5
 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
 [email protected]
9.8
 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
 [email protected]

CWE ids for CVE-2021-31535

References for CVE-2021-31535

Products affected by CVE-2021-31535

This web site uses cookies for managing your session and website analytics (Google analytics) purposes as described in our privacy policy.
By using this web site you are agreeing to CVEdetails.com terms of use!
Accept Close