Description
mm/mremap.c in the Linux kernel before 5.13.3 has a use-after-free via a stale TLB because an rmap lock is not held during a PUD move.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Canonical / Ubuntu Linux18.04 – 18.04
- Canonical / Ubuntu Linux22.04 – 22.04
- Canonical / Ubuntu Linux20.04 – 20.04
- Debian / debian_linux10.0 – 10.0
- Linux / Linux kernel5.0 – 5.4.211
- NetApp / hci_baseboard_management_controllerh500s – h500s
- NetApp / hci_baseboard_management_controllerh700s – h700s
- NetApp / hci_baseboard_management_controllerh410s – h410s
- NetApp / hci_baseboard_management_controllerh410c – h410c
- NetApp / hci_baseboard_management_controllerh300s – h300s
References
- MISChttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3
- MISChttps://bugs.chromium.org/p/project-zero/issues/detail?id=2347
- MISChttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=97113eb39fa7972722ff490b947d8af023e1f6a2
- EXPLOIThttp://packetstormsecurity.com/files/168466/Linux-Stable-5.4-5.10-Use-After-Free-Race-Condition.html
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- MISChttps://security.netapp.com/advisory/ntap-20230214-0008/
- EXPLOIThttp://packetstormsecurity.com/files/171005/Kernel-Live-Patch-Security-Notice-LNS-0091-1.html
Updated 17m ago · 8 sources