CVE-2022-46340
moderate-risk
Published 2022-12-14
A vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the XTestFakeInput request of the XTest extension may corrupt the stack if GenericEvents with lengths larger than 32 bytes are sent through a the XTestFakeInput request. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions. This issue does not affect systems where client and server use the same byte order.
Do I need to act?
~
1.1% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10
High
NETWORK
/ LOW complexity
Affected Products (4)
Affected Vendors
References (16)
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2022-46340
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2151755
Third Party Advisory
https://www.debian.org/security/2022/dsa-5304
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2022-46340
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2151755
Third Party Advisory
https://www.debian.org/security/2022/dsa-5304
43
/ 100
moderate-risk
Severity
30/34 · Critical
Exploitability
3/34 · Minimal
Exposure
10/34 · Low