CVE-2023-6546
moderate-risk
Published 2023-12-21
A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.
Do I need to act?
-
0.33% chance of exploitation
EPSS score — low 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
7
CVSS 7.0/10
High
LOCAL
/ HIGH complexity
Affected Products (10)
Affected Vendors
References (53)
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-6546
and 33 more references
35
/ 100
moderate-risk
Severity
18/34 · Moderate
Exploitability
1/34 · Minimal
Exposure
16/34 · Moderate