UBUNTU-CVE-2023-6546
Dashboard / Vulnerabilities / UBUNTU-CVE-2023-6546
Summary:
Details: 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://ubuntu.com/security/CVE-2023-6546, https://git.kernel.org/linus/3c4f8333b582487a2d1e02171f1465531cde53e3, https://www.cve.org/CVERecord?id=CVE-2023-6546
Affected packages
Package
Name: linux-hwe-edge
Purl: pkg:deb/ubuntu/linux-hwe-edge?arch=source&distro=xenial
Affected ranges
Type: ECOSYSTEM
Events:
Introduced- 0
Fixed -None
Affected versions
4.8.0-28.30~16.04.1
4.8.0-30.32~16.04.1
4.8.0-32.34~16.04.1
4.8.0-34.36~16.04.1
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
