CVE-2023-51781

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.8

Description An issue in the Linux kernel is related to a use-after-free condition due to a race condition in the atalk recvmsg function. This issue affects the atalk ioctl function in the net/appletalk/ddp.c module, which is part of the Appletalk protocol implementation. The exploitation of this issue may allow an attacker to impact the confidentiality, integrity, and availability of protected information.

Recommendations For versions prior to 6.6.8, update to version 6.6.8 or later to resolve the issue. As a temporary workaround, consider disabling the atalk ioctl() function until a patch is available. Restrict access to the net/appletalk/ddp.c module to minimize the risk of exploitation. Avoid using the atalk recvmsg function in the affected API endpoint until the issue is resolved.