Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: avoid possible UaF when selecting endp select_local_address() and select_signal_address() both select an endpoint entry from the list inside an RCU protected section, but return a reference to it, to be read later on. If the entry is dereferenced after the RCU unlock, reading info could cause a Use-after-Free. A simple solution is to copy the required info while inside the RCU protected section to avoid any risk of UaF later. The address ID might need to be modified later to handle the ID0 case later, so a copy seems OK to deal with.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian | Debian Linux | 11.0 |
| Linux | Linux Kernel | >= 5.7, < 5.10.226 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0201d65d9806d287a00e0ba96f0321835631f63fPatch
- https://git.kernel.org/stable/c/2b4f46f9503633dade75cb796dd1949d0e6581a1Patch
- https://git.kernel.org/stable/c/48e50dcbcbaaf713d82bf2da5c16aeced94ad07dPatch
- https://git.kernel.org/stable/c/9a9afbbc3fbfca4975eea4aa5b18556db5a0c0b8Patch
- https://git.kernel.org/stable/c/ddee5b4b6a1cc03c1e9921cf34382e094c2009f1Patch
- https://git.kernel.org/stable/c/f2c865e9e3ca44fc06b5f73b29a954775e4dbb38Patch
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2024-44974?
CVE-2024-44974 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: avoid possible UaF when selecting endp select_local_address() and select_signal_address() both select an endpoint entry...
How severe is CVE-2024-44974?
CVE-2024-44974 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-44974?
Check the references section above for vendor advisories and patch information. Affected products include: Debian Debian Linux, Linux Linux Kernel.