Vulnerabilities > CVE-2023-52846 - Use After Free vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
In the Linux kernel, the following vulnerability has been resolved: hsr: Prevent use after free in prp_create_tagged_frame() The prp_fill_rct() function can fail. In that situation, it frees the skb and returns NULL. Meanwhile on the success path, it returns the original skb. So it's straight forward to fix bug by using the returned value.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://git.kernel.org/stable/c/1787b9f0729d318d67cf7c5a95f0c3dba9a7cc18
- https://git.kernel.org/stable/c/1787b9f0729d318d67cf7c5a95f0c3dba9a7cc18
- https://git.kernel.org/stable/c/6086258bd5ea7b5c706ff62da42b8e271b2401db
- https://git.kernel.org/stable/c/6086258bd5ea7b5c706ff62da42b8e271b2401db
- https://git.kernel.org/stable/c/876f8ab52363f649bcc74072157dfd7adfbabc0d
- https://git.kernel.org/stable/c/876f8ab52363f649bcc74072157dfd7adfbabc0d
- https://git.kernel.org/stable/c/a1a485e45d24b1cd8fe834fd6f1b06e2903827da
- https://git.kernel.org/stable/c/a1a485e45d24b1cd8fe834fd6f1b06e2903827da
- https://git.kernel.org/stable/c/d103fb6726904e353b4773188ee3d3acb4078363
- https://git.kernel.org/stable/c/d103fb6726904e353b4773188ee3d3acb4078363
- https://git.kernel.org/stable/c/ddf4e04e946aaa6c458b8b6829617cc44af2bffd
- https://git.kernel.org/stable/c/ddf4e04e946aaa6c458b8b6829617cc44af2bffd