CVE-2023-3863: Use-after-free in nfc_llcp_find_loca in net/nfc/llcp_core.c
First published: Mon Jul 24 2023(Updated: )
A use-after-free flaw was found in nfc_llcp_find_local in net/nfc/llcp_core.c in NFC in the Linux Kernel. In this flaw a local user with special privilege may impact kernel information leak problem. crash stack: BUG: KASAN: slab-use-after-free in nfc_genl_llc_get_params+0x72f/0x780 net/nfc/netlink.c:1045 Read of size 8 at addr ffff888105b0e410 by task 20114 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x72/0xa0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:319 [inline] print_report+0xcc/0x620 mm/kasan/report.c:430 kasan_report+0xb2/0xe0 mm/kasan/report.c:536 nfc_genl_send_params net/nfc/netlink.c:999 [inline] nfc_genl_llc_get_params+0x72f/0x780 net/nfc/netlink.c:1045 genl_family_rcv_msg_doit.isra.0+0x1ee/0x2e0 net/netlink/genetlink.c:968 genl_family_rcv_msg net/netlink/genetlink.c:1048 [inline] genl_rcv_msg+0x503/0x7d0 net/netlink/genetlink.c:1065 netlink_rcv_skb+0x161/0x430 net/netlink/af_netlink.c:2548 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0x644/0x900 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x934/0xe70 net/netlink/af_netlink.c:1913 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg+0x1b6/0x200 net/socket.c:747 ____sys_sendmsg+0x6e9/0x890 net/socket.c:2501 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2555 __sys_sendmsg+0xf7/0x1d0 net/socket.c:2584 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3f/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x72/0xdc Reference: <a href="https://github.com/torvalds/linux/commit/6709d4b7bc2e079241fdef15d1160581c5261c10">https://github.com/torvalds/linux/commit/6709d4b7bc2e079241fdef15d1160581c5261c10</a>
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <6.5 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| Debian Debian Linux | =12.0 | |
| redhat/Kernel | <6.5 | 6.5 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.5-1 6.11.7-1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://access.redhat.com/security/cve/CVE-2023-3863
- https://github.com/torvalds/linux/commit/6709d4b7bc2e079241fdef15d1160581c5261c10
- https://bugzilla.redhat.com/show_bug.cgi?id=2225126
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://www.debian.org/security/2023/dsa-5480
- https://www.debian.org/security/2023/dsa-5492
- https://security.netapp.com/advisory/ntap-20240202-0002/
- https://launchpad.net/bugs/cve/CVE-2023-3863
- https://git.kernel.org/linus/6709d4b7bc2e079241fdef15d1160581c5261c10
- https://security-tracker.debian.org/tracker/CVE-2023-3863
- https://git.kernel.org/linus/6709d4b7bc2e079241fdef15d1160581c5261c10 (6.5-rc1)
- https://ubuntu.com/security/notices/USN-6285-1
- https://ubuntu.com/security/notices/USN-6385-1
- https://ubuntu.com/security/notices/USN-6388-1
- https://ubuntu.com/security/notices/USN-6396-1
- https://ubuntu.com/security/notices/USN-6416-1
- https://ubuntu.com/security/notices/USN-6417-1
- https://ubuntu.com/security/notices/USN-6396-2
- https://ubuntu.com/security/notices/USN-6416-2
- https://ubuntu.com/security/notices/USN-6396-3
- https://ubuntu.com/security/notices/USN-6416-3
- https://ubuntu.com/security/notices/USN-6445-1
- https://ubuntu.com/security/notices/USN-6445-2
- https://ubuntu.com/security/notices/USN-6464-1
- https://ubuntu.com/security/notices/USN-6466-1
- https://ubuntu.com/security/notices/USN-6520-1
- https://www.cve.org/CVERecord?id=CVE-2023-3863
- https://nvd.nist.gov/vuln/detail/CVE-2023-3863
- https://git.kernel.org/linus/52feb444a90304eb13c03115bb9758101dbb9254
- https://git.kernel.org/linus/c7aa12252f5142b9eee2f6e34ca8870a8e7e048c
- https://ubuntu.com/security/CVE-2023-3863
- collector/nvd-index
- agent/type
- agent/remedy
- agent/author
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2023-3863
- agent/software-canonical-lookup
- agent/severity
- agent/title
- agent/weakness
- collector/nvd-cve
- source/NVD
- collector/launchpad-cve
- source/Launchpad
- collector/epss-latest
- source/FIRST
- agent/epss
- agent/references
- collector/nvd-latest
- agent/software-canonical-lookup-request
- collector/nvd-api
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/tags
- agent/first-publish-date
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- collector/security-tracker-debian
- source/Debian
- agent/description
- vendor/linux
- canonical/linux linux kernel
- package-manager/redhat
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- version/debian debian linux/11.0
- version/debian debian linux/12.0
- package-manager/debian