VulnerabilityModified
CVE-2020-25697
A privilege escalation flaw was found in the Xorg-x11-server due to a lack of authentication for X11 clients.
HIGH 7.0EPSS 0.31%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.31%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.31% probability · 24th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-306
- Affected
- x.org/x server
- Source
- secalert@redhat.com
References
- http://www.openwall.com/lists/oss-security/2020/11/09/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/09/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/09/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/09/3Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1895295Issue Tracking, Third Party Advisory
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
- https://seclists.org/oss-sec/2020/q4/105Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/09/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/09/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/09/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/09/3Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1895295Issue Tracking, Third Party Advisory
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
- https://seclists.org/oss-sec/2020/q4/105Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.