Vulnerability · Published May 26, 2021 · Assigned by redhat
CVE-2020-25697
High 7.0
In plain English
A high-severity missing authentication in xorg-x11-server. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).
Severity (CVSS NVD)7.0High
Exploit odds (30 days)0.3%top 75.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A privilege escalation flaw was found in the Xorg-x11-server due to a lack of authentication for X11 clients. This flaw allows an attacker to take control of an X application by impersonating the server it is expecting to connect to.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | libx11 | no fix listed | UBUNTU-CVE-2020-25697 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | xorg-x11-server | All |
Weakness: CWE-306
References
- [oss-security] 20201109 The importance of mutual authentication: Local Privilege Escalation in X11 mailing-list, x_refsource_MLIST
- [mina-dev] 20210225 [jira] [Created] (FTPSERVER-500) Security vulnerability in common/lib/log4j-1.2.17.jar mailing-list, x_refsource_MLIST
- https://seclists.org/oss-sec/2020/q4/105 x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=1895295 x_refsource_MISC