Description
A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11. This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object.
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
- Debian / debian_linux9.0 – 9.0
- Debian / debian_linux10.0 – 10.0
- Debian / debian_linux11.0 – 11.0
- fedoraproject / fedora35 – 35
- Linux / Linux kernel4.12 – 4.14.261
- NetApp / h300e_firmware
- NetApp / h300s_firmware
- NetApp / h410c_firmware
- NetApp / h410s_firmware
- NetApp / h500e_firmware
- NetApp / h500s_firmware
- NetApp / h700e_firmware
- NetApp / h700s_firmware
- RedHat / enterprise_linux8.0 – 8.0
References
- MISChttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/tee/tee_shm.c
- MISChttps://lore.kernel.org/lkml/20211215092501.1861229-1-jens.wiklander%40linaro.org/
- MISChttps://github.com/pjlantz/optee-qemu/blob/main/README.md
- MISChttps://security.netapp.com/advisory/ntap-20220114-0003/
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
- VENDOR_ADVISORYhttps://www.debian.org/security/2022/dsa-5096
- MISChttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfd0743f1d9ea76931510ed150334d571fbab49d
Updated 18m ago · 8 sources