Description
In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Linux / Linux kernel3.13 – 4.14.315
- NetApp / hci_baseboard_management_controllerh700s – h700s
- NetApp / hci_baseboard_management_controllerh410c – h410c
- NetApp / hci_baseboard_management_controllerh410s – h410s
- NetApp / hci_baseboard_management_controllerh500s – h500s
- NetApp / hci_baseboard_management_controllerh300s – h300s
- RedHat / enterprise_linux8.0 – 8.0
- RedHat / enterprise_linux9.0 – 9.0
- RedHat / enterprise_linux7.0 – 7.0
References
- MAILING_LISThttps://www.openwall.com/lists/oss-security/2023/05/08/4
- PATCHhttps://github.com/torvalds/linux/commit/c1592a89942e9678f7d9c8030efa777c0d57edab
- MISChttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1592a89942e9678f7d9c8030efa777c0d57edab
- MISChttps://news.ycombinator.com/item?id=35879660
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=2196105
- VENDOR_ADVISORYhttps://www.debian.org/security/2023/dsa-5402
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2023/05/15/5
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2023/06/msg00008.html
- MISChttps://security.netapp.com/advisory/ntap-20230616-0002/
- EXPLOIThttp://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2023/07/msg00030.html
Updated 17m ago · 8 sources