xorg-x11-server: local privilege escalation
Published May 26, 2021
7.0
HIGHCVSS 3.1
EPSS 0.31%
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 products
- Vendor n/a Product Xorg-X11-Server Defaultn/a
- Version AllStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Xorg-X11-Server | n/a |
|
No data.
Red Hat Enterprise Linux 6
xorg-x11-server
Out of support scope
Red Hat Enterprise Linux 7
xorg-x11-server
Out of support scope
Red Hat Enterprise Linux 8
xorg-x11-server
Will not fix
Red Hat Enterprise Linux 9
xorg-x11-server
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | xorg-x11-server | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | xorg-x11-server | Out of support scope | n/a |
| Red Hat Enterprise Linux 8 | xorg-x11-server | Will not fix | n/a |
| Red Hat Enterprise Linux 9 | xorg-x11-server | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
As per upstream, exploiting this flaw is non-trivial and it requires exact timing on the behalf of the attacker. Many graphical applications exit if their connection to the X server is lost, so a typical desktop session is either impossible or difficult to exploit. There is currently no upstream patch available for this flaw.
References (9)
- http://www.openwall.com/lists/oss-security/2020/11/09/3 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2020-25697 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1895295 x_refsource_MISCIssue TrackingThird Party Advisory
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-18358 Advisory
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2020-25697
- https://seclists.org/oss-sec/2020/q4/105 x_refsource_MISCMailing ListThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2020-25697
- https://www.openwall.com/lists/oss-security/2020/11/09/3
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2020/11/09/3 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2020-25697 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1895295 | x_refsource_MISCIssue TrackingThird Party Advisory | |
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-18358 | Advisory | |
| https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E | mailing-listx_refsource_MLIST | |
| https://nvd.nist.gov/vuln/detail/CVE-2020-25697 | ||
| https://seclists.org/oss-sec/2020/q4/105 | x_refsource_MISCMailing ListThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2020-25697 | ||
| https://www.openwall.com/lists/oss-security/2020/11/09/3 |
Change history (0)
No recorded changes yet.