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Vulnerability · Published Apr 3, 2024 · Assigned by Linux

CVE-2023-52637can: j1939: Fix UAF in j1939_sk_match_filter during setsockopt(SO_J1939_FILTER)

High 7.8

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 85.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: can: j1939: Fix UAF in j1939_sk_match_filter during setsockopt(SO_J1939_FILTER) Lock jsk->sk to prevent UAF when setsockopt(..., SO_J1939_FILTER, ...) modifies jsk->filters while receiving packets. Following trace was seen on affected system: ================================================================== BUG: KASAN: slab-use-after-free in j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939] Read of size 4 at addr ffff888012144014 by task j1939/350 CPU: 0 PID: 350 Comm: j1939 Tainted: G W OE 6.5.0-rc5 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Call Trace: print_report+0xd3/0x620 ? kasan_complete_mode_report_info+0x7d/0x200 ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939] kasan_report+0xc2/0x100 ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939] __asan_load4+0x84/0xb0 j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939] j1939_sk_recv+0x20b/0x320 [can_j1939] ? __kasan_check_write+0x18/0x20 ? __pfx_j1939_sk_recv+0x10/0x10 [can_j1939] ? j1939_simple_recv+0x69/0x280 [can_j1939] ? j1939_ac_recv+0x5e/0x310 [can_j1939] j1939_can_recv+0x43f/0x580 [can_j1939] ? __pfx_j1939_can_recv+0x10/0x10 [can_j1939] ? raw_rcv+0x42/0x3c0 [can_raw] ? __pfx_j1939_can_recv+0x10/0x10 [can_j1939] can_rcv_filter+0x11f/0x350 [can] can_receive+0x12f/0x190 [can] ? __pfx_can_rcv+0x10/0x10 [can] can_rcv+0xdd/0x130 [can] ? __pfx_can_rcv+0x10/0x10 [can] __netif_receive_skb_one_core+0x13d/0x150 ? __pfx___netif_receive_skb_one_core+0x10/0x10 ? __kasan_check_write+0x18/0x20 ? _raw_spin_lock_irq+0x8c/0xe0 __netif_receive_skb+0x23/0xb0 process_backlog+0x107/0x260 __napi_poll+0x69/0x310 net_rx_action+0x2a1/0x580 ? __pfx_net_rx_action+0x10/0x10 ? __pfx__raw_spin_lock+0x10/0x10 ? handle_irq_event+0x7d/0xa0 __do_softirq+0xf3/0x3f8 do_softirq+0x53/0x80 </IRQ> <TASK> __local_bh_enable_ip+0x6e/0x70 netif_rx+0x16b/0x180 can_send+0x32b/0x520 [can] ? __pfx_can_send+0x10/0x10 [can] ? __check_object_size+0x299/0x410 raw_sendmsg+0x572/0x6d0 [can_raw] ? __pfx_raw_sendmsg+0x10/0x10 [can_raw] ? apparmor_socket_sendmsg+0x2f/0x40 ? __pfx_raw_sendmsg+0x10/0x10 [can_raw] sock_sendmsg+0xef/0x100 sock_write_iter+0x162/0x220 ? __pfx_sock_write_iter+0x10/0x10 ? __rtnl_unlock+0x47/0x80 ? security_file_permission+0x54/0x320 vfs_write+0x6ba/0x750 ? __pfx_vfs_write+0x10/0x10 ? __fget_light+0x1ca/0x1f0 ? __rcu_read_unlock+0x5b/0x280 ksys_write+0x143/0x170 ? __pfx_ksys_write+0x10/0x10 ? __kasan_check_read+0x15/0x20 ? fpregs_assert_state_consistent+0x62/0x70 __x64_sys_write+0x47/0x60 do_syscall_64+0x60/0x90 ? do_syscall_64+0x6d/0x90 ? irqentry_exit+0x3f/0x50 ? exc_page_fault+0x79/0xf0 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Allocated by task 348: kasan_save_stack+0x2a/0x50 kasan_set_track+0x29/0x40 kasan_save_alloc_info+0x1f/0x30 __kasan_kmalloc+0xb5/0xc0 __kmalloc_node_track_caller+0x67/0x160 j1939_sk_setsockopt+0x284/0x450 [can_j1939] __sys_setsockopt+0x15c/0x2f0 __x64_sys_setsockopt+0x6b/0x80 do_syscall_64+0x60/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Freed by task 349: kasan_save_stack+0x2a/0x50 kasan_set_track+0x29/0x40 kasan_save_free_info+0x2f/0x50 __kasan_slab_free+0x12e/0x1c0 __kmem_cache_free+0x1b9/0x380 kfree+0x7a/0x120 j1939_sk_setsockopt+0x3b2/0x450 [can_j1939] __sys_setsockopt+0x15c/0x2f0 __x64_sys_setsockopt+0x6b/0x80 do_syscall_64+0x60/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.82-1DEBIAN-CVE-2023-52637
Debian:13linux6.7.7-1DEBIAN-CVE-2023-52637
Debian:14linux6.7.7-1DEBIAN-CVE-2023-52637
Ubuntu:22.04:LTSlinux5.15.0-106.116USN-6766-1
Ubuntu:22.04:LTSlinux5.15.0-106.116UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-aws5.15.0-1061.67USN-6766-3
Ubuntu:22.04:LTSlinux-aws5.15.0-1061.67UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-aws-6.56.5.0-1023.23~22.04.1USN-6895-3
Ubuntu:22.04:LTSlinux-aws-6.56.5.0-1023.23~22.04.1UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-azure5.15.0-1063.72USN-6766-1
Ubuntu:22.04:LTSlinux-azure5.15.0-1063.72UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-azure-6.56.5.0-1024.25~22.04.1USN-6895-2
Ubuntu:22.04:LTSlinux-azure-6.56.5.0-1024.25~22.04.1UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1063.72.1USN-6766-1
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1063.72.1UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-gcp5.15.0-1059.67UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-gcp5.15.0-1059.67USN-6766-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1024.26~22.04.1USN-6895-2
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1024.26~22.04.1UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-gke5.15.0-1058.63USN-6766-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1058.63UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1044.51USN-6766-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1044.51UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-44.44~22.04.1USN-6900-1
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-44.44~22.04.1UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-ibm5.15.0-1054.57USN-6766-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1054.57UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1057.63USN-6795-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1057.63UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-kvm5.15.0-1058.63USN-6766-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1058.63UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-106.116USN-6766-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-106.116UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-44.44.1~22.04.1USN-6895-3
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-44.44.1~22.04.1UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1054.55UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1054.55USN-6766-1
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1023.24UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1023.24USN-6895-1
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1026.26UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1015.15UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1027.28USN-6895-4
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1027.28UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-oracle5.15.0-1059.65USN-6766-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1059.65UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1026.26~22.04.1USN-6895-3
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1026.26~22.04.1UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-raspi5.15.0-1054.57UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-raspi5.15.0-1054.57USN-6766-2
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-starfive-6.56.5.0-1017.18~22.04.1USN-6895-3
Ubuntu:22.04:LTSlinux-starfive-6.56.5.0-1017.18~22.04.1UBUNTU-CVE-2023-52637
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1030.34UBUNTU-CVE-2023-52637

Affected products (as reported)

VendorProductVersions
Linux Linux 9d71dd0c70099914fcd063135da3c580865e924c – before 08de58abedf6e69396e1207e4f99ef8904b2b5329d71dd0c70099914fcd063135da3c580865e924c – before 978e50ef8c38dc71bd14d1b0143d554ff5d188ba9d71dd0c70099914fcd063135da3c580865e924c – before 41ccb5bcbf03f02d820bc6ea8390811859f558f89d71dd0c70099914fcd063135da3c580865e924c – before 4dd684d4bb3cd5454e0bf6e2a1bdfbd5c9c872ed9d71dd0c70099914fcd063135da3c580865e924c – before f84e7534457dcd7835be743517c35378bb4e7c509d71dd0c70099914fcd063135da3c580865e924c – before fc74b9cb789cae061bbca7b203a3842e059f6b5d9d71dd0c70099914fcd063135da3c580865e924c – before efe7cf828039aedb297c1f9920b638fffee6aabc
Linux Linux 5.4

References