Detections
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CVE-2023-6546
high
Description
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.
References
https://www.zerodayinitiative.com/advisories/ZDI-CAN-20527
https://github.com/torvalds/linux/commit/3c4f8333b582487a2d1e02171f1465531cde53e3
https://bugzilla.redhat.com/show_bug.cgi?id=2255498
https://access.redhat.com/security/cve/CVE-2023-6546
https://access.redhat.com/errata/RHSA-2024:2697
https://access.redhat.com/errata/RHSA-2024:2621
https://access.redhat.com/errata/RHSA-2024:2394
https://access.redhat.com/errata/RHSA-2024:2093
https://access.redhat.com/errata/RHSA-2024:1614
https://access.redhat.com/errata/RHSA-2024:1612
https://access.redhat.com/errata/RHSA-2024:1607
https://access.redhat.com/errata/RHSA-2024:1306
https://access.redhat.com/errata/RHSA-2024:1253
https://access.redhat.com/errata/RHSA-2024:1250
https://access.redhat.com/errata/RHSA-2024:1055
https://access.redhat.com/errata/RHSA-2024:1019
https://access.redhat.com/errata/RHSA-2024:1018
https://access.redhat.com/errata/RHSA-2024:0937
https://access.redhat.com/errata/RHSA-2024:0930
http://www.openwall.com/lists/oss-security/2024/04/17/1
http://www.openwall.com/lists/oss-security/2024/04/16/2
http://www.openwall.com/lists/oss-security/2024/04/12/2
http://www.openwall.com/lists/oss-security/2024/04/12/1
http://www.openwall.com/lists/oss-security/2024/04/11/9
http://www.openwall.com/lists/oss-security/2024/04/11/7