ID

VAR-202406-1441

CVE

CVE-2024-37356

TITLE

Linux  of  Linux Kernel  Integer overflow vulnerability in

DESCRIPTION

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix shift-out-of-bounds in dctcp_update_alpha(). In dctcp_update_alpha(), we use a module parameter dctcp_shift_g as follows: alpha -= min_not_zero(alpha, alpha >> dctcp_shift_g); ... delivered_ce <<= (10 - dctcp_shift_g); It seems syzkaller started fuzzing module parameters and triggered shift-out-of-bounds [0] by setting 100 to dctcp_shift_g: memcpy((void*)0x20000080, "/sys/module/tcp_dctcp/parameters/dctcp_shift_g\000", 47); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000080ul, /*flags=*/2ul, /*mode=*/0ul); memcpy((void*)0x20000000, "100\000", 4); syscall(__NR_write, /*fd=*/r[0], /*val=*/0x20000000ul, /*len=*/4ul); Let's limit the max value of dctcp_shift_g by param_set_uint_minmax(). With this patch: # echo 10 > /sys/module/tcp_dctcp/parameters/dctcp_shift_g # cat /sys/module/tcp_dctcp/parameters/dctcp_shift_g 10 # echo 11 > /sys/module/tcp_dctcp/parameters/dctcp_shift_g -bash: echo: write error: Invalid argument [0]: UBSAN: shift-out-of-bounds in net/ipv4/tcp_dctcp.c:143:12 shift exponent 100 is too large for 32-bit type 'u32' (aka 'unsigned int') CPU: 0 PID: 8083 Comm: syz-executor345 Not tainted 6.9.0-05151-g1b294a1f3561 #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x201/0x300 lib/dump_stack.c:114 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds+0x346/0x3a0 lib/ubsan.c:468 dctcp_update_alpha+0x540/0x570 net/ipv4/tcp_dctcp.c:143 tcp_in_ack_event net/ipv4/tcp_input.c:3802 [inline] tcp_ack+0x17b1/0x3bc0 net/ipv4/tcp_input.c:3948 tcp_rcv_state_process+0x57a/0x2290 net/ipv4/tcp_input.c:6711 tcp_v4_do_rcv+0x764/0xc40 net/ipv4/tcp_ipv4.c:1937 sk_backlog_rcv include/net/sock.h:1106 [inline] __release_sock+0x20f/0x350 net/core/sock.c:2983 release_sock+0x61/0x1f0 net/core/sock.c:3549 mptcp_subflow_shutdown+0x3d0/0x620 net/mptcp/protocol.c:2907 mptcp_check_send_data_fin+0x225/0x410 net/mptcp/protocol.c:2976 __mptcp_close+0x238/0xad0 net/mptcp/protocol.c:3072 mptcp_close+0x2a/0x1a0 net/mptcp/protocol.c:3127 inet_release+0x190/0x1f0 net/ipv4/af_inet.c:437 __sock_release net/socket.c:659 [inline] sock_close+0xc0/0x240 net/socket.c:1421 __fput+0x41b/0x890 fs/file_table.c:422 task_work_run+0x23b/0x300 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x9c8/0x2540 kernel/exit.c:878 do_group_exit+0x201/0x2b0 kernel/exit.c:1027 __do_sys_exit_group kernel/exit.c:1038 [inline] __se_sys_exit_group kernel/exit.c:1036 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xe4/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x67/0x6f RIP: 0033:0x7f6c2b5005b6 Code: Unable to access opcode bytes at 0x7f6c2b50058c. RSP: 002b:00007ffe883eb948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f6c2b5862f0 RCX: 00007f6c2b5005b6 RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001 RBP: 0000000000000001 R08: 00000000000000e7 R09: ffffffffffffffc0 R10: 0000000000000006 R11: 0000000000000246 R12: 00007f6c2b5862f0 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 </TASK>. Linux of Linux Kernel Exists in an integer overflow vulnerability.Service operation interruption (DoS) It may be in a state. The RUGGEDCOM RST2428P is a Layer 2 Ethernet switch based on the SINEC operating system with up to 28 non-blocking interfaces. SCALANCE X switches are used to connect industrial components such as programmable logic controllers (PLCs) or human-machine interfaces (HMIs). Multiple vulnerabilities in third-party components of Siemens' SINEC OS could allow attackers to gain control of the server. ========================================================================== Ubuntu Security Notice USN-7009-2 September 25, 2024 linux-azure-fde-5.15 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-azure-fde-5.15: Linux kernel for Microsoft Azure CVM cloud systems Details: Chenyuan Yang discovered that the CEC driver driver in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2024-23848) Chenyuan Yang discovered that the USB Gadget subsystem in the Linux kernel did not properly check for the device to be enabled before writing. A local attacker could possibly use this to cause a denial of service. (CVE-2024-25741) It was discovered that the JFS file system contained an out-of-bounds read vulnerability when printing xattr debug information. A local attacker could use this to cause a denial of service (system crash). An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - M68K architecture; - MIPS architecture; - PowerPC architecture; - RISC-V architecture; - x86 architecture; - Block layer subsystem; - Cryptographic API; - Accessibility subsystem; - ACPI drivers; - Serial ATA and Parallel ATA drivers; - Drivers core; - Bluetooth drivers; - Character device driver; - CPU frequency scaling framework; - Hardware crypto device drivers; - Buffer Sharing and Synchronization framework; - DMA engine subsystem; - FPGA Framework; - GPIO subsystem; - GPU drivers; - Greybus drivers; - HID subsystem; - HW tracing; - I2C subsystem; - IIO subsystem; - InfiniBand drivers; - Input Device (Mouse) drivers; - Macintosh device drivers; - Multiple devices driver; - Media drivers; - VMware VMCI Driver; - Network drivers; - Near Field Communication (NFC) drivers; - NVME drivers; - Pin controllers subsystem; - PTP clock framework; - S/390 drivers; - SCSI drivers; - SoundWire subsystem; - Greybus lights staging drivers; - Media staging drivers; - Thermal drivers; - TTY drivers; - USB subsystem; - DesignWare USB3 driver; - Framebuffer layer; - ACRN Hypervisor Service Module driver; - eCrypt file system; - File systems infrastructure; - Ext4 file system; - F2FS file system; - JFFS2 file system; - JFS file system; - NILFS2 file system; - NTFS3 file system; - SMB network file system; - IOMMU subsystem; - Memory management; - Netfilter; - BPF subsystem; - Kernel debugger infrastructure; - DMA mapping infrastructure; - IRQ subsystem; - Tracing infrastructure; - 9P file system network protocol; - B.A.T.M.A.N. meshing protocol; - CAN network layer; - Ceph Core library; - Networking core; - IPv4 networking; - IPv6 networking; - IUCV driver; - MAC80211 subsystem; - Multipath TCP; - NET/ROM layer; - NFC subsystem; - Open vSwitch; - Network traffic control; - TIPC protocol; - TLS protocol; - Unix domain sockets; - Wireless networking; - XFRM subsystem; - ALSA framework; - SoC Audio for Freescale CPUs drivers; - Kirkwood ASoC drivers; (CVE-2024-42076, CVE-2024-40994, CVE-2024-40932, CVE-2024-41000, CVE-2024-42224, CVE-2024-38633, CVE-2024-40954, CVE-2024-36270, CVE-2024-38623, CVE-2024-38549, CVE-2024-42225, CVE-2024-42085, CVE-2024-42157, CVE-2024-42229, CVE-2024-42109, CVE-2024-41040, CVE-2024-38607, CVE-2024-39493, CVE-2024-38546, CVE-2024-41046, CVE-2024-38567, CVE-2024-42092, CVE-2024-39501, CVE-2024-41005, CVE-2024-42223, CVE-2024-39480, CVE-2024-38571, CVE-2024-41048, CVE-2024-38605, CVE-2024-42094, CVE-2024-38598, CVE-2024-38559, CVE-2024-38558, CVE-2024-40931, CVE-2024-40942, CVE-2024-39495, CVE-2024-40981, CVE-2024-40911, CVE-2024-42148, CVE-2024-33621, CVE-2024-39502, CVE-2024-41095, CVE-2024-40960, CVE-2024-36286, CVE-2024-42232, CVE-2024-42130, CVE-2024-42154, CVE-2024-41087, CVE-2024-41004, CVE-2024-39277, CVE-2024-38560, CVE-2024-36978, CVE-2024-42089, CVE-2024-37356, CVE-2024-38547, CVE-2024-38381, CVE-2024-36015, CVE-2024-38548, CVE-2024-42120, CVE-2024-41092, CVE-2024-40978, CVE-2024-38619, CVE-2024-40914, CVE-2024-41089, CVE-2024-40988, CVE-2024-41047, CVE-2024-38565, CVE-2024-38550, CVE-2023-52887, CVE-2024-38552, CVE-2024-38583, CVE-2024-38613, CVE-2024-40967, CVE-2024-40927, CVE-2024-42124, CVE-2024-42244, CVE-2024-42152, CVE-2024-39509, CVE-2024-38662, CVE-2024-38618, CVE-2024-42140, CVE-2024-38579, CVE-2024-40945, CVE-2024-42101, CVE-2024-42104, CVE-2024-41044, CVE-2024-42161, CVE-2024-42093, CVE-2024-42270, CVE-2024-42097, CVE-2024-40970, CVE-2024-40908, CVE-2024-38582, CVE-2024-42247, CVE-2024-38661, CVE-2024-40941, CVE-2024-42084, CVE-2024-42090, CVE-2024-42131, CVE-2024-42077, CVE-2024-40995, CVE-2024-42105, CVE-2024-41035, CVE-2024-41097, CVE-2024-38780, CVE-2024-35247, CVE-2024-36974, CVE-2024-42070, CVE-2024-40902, CVE-2024-36972, CVE-2024-38586, CVE-2024-38573, CVE-2024-38612, CVE-2024-42121, CVE-2023-52884, CVE-2024-39276, CVE-2024-38615, CVE-2024-42095, CVE-2024-42086, CVE-2024-39507, CVE-2024-40983, CVE-2024-40943, CVE-2024-41002, CVE-2024-40958, CVE-2024-41049, CVE-2024-38596, CVE-2024-37078, CVE-2024-38637, CVE-2024-38621, CVE-2024-42153, CVE-2024-38659, CVE-2024-39468, CVE-2024-38589, CVE-2024-38587, CVE-2024-36971, CVE-2024-38599, CVE-2024-31076, CVE-2024-39490, CVE-2024-40959, CVE-2024-38634, CVE-2024-38624, CVE-2024-42240, CVE-2024-42127, CVE-2024-42102, CVE-2024-38578, CVE-2024-34027, CVE-2024-38601, CVE-2024-42087, CVE-2024-38597, CVE-2024-38591, CVE-2024-39503, CVE-2024-42236, CVE-2024-42082, CVE-2024-40956, CVE-2024-41041, CVE-2024-38580, CVE-2024-39506, CVE-2024-36894, CVE-2024-40987, CVE-2024-39475, CVE-2024-38635, CVE-2024-41007, CVE-2024-39471, CVE-2024-39467, CVE-2022-48772, CVE-2024-40934, CVE-2024-42106, CVE-2024-39469, CVE-2024-40963, CVE-2024-39482, CVE-2024-39505, CVE-2024-36014, CVE-2024-39500, CVE-2024-42096, CVE-2024-41055, CVE-2024-40937, CVE-2024-38590, CVE-2024-38610, CVE-2024-41034, CVE-2024-42115, CVE-2024-40974, CVE-2024-40968, CVE-2024-42080, CVE-2024-40957, CVE-2024-40971, CVE-2024-36032, CVE-2024-39499, CVE-2024-42137, CVE-2024-39489, CVE-2024-40976, CVE-2024-39466, CVE-2024-42145, CVE-2024-36489, CVE-2024-40980, CVE-2024-39301, CVE-2024-40905, CVE-2024-41093, CVE-2024-40912, CVE-2024-42119, CVE-2024-38588, CVE-2024-40916, CVE-2024-39488, CVE-2024-41027, CVE-2024-42068, CVE-2024-40904, CVE-2024-40961, CVE-2024-33847, CVE-2024-38555, CVE-2024-41006, CVE-2024-40929, CVE-2024-34777, CVE-2024-38627, CVE-2024-40984, CVE-2024-40990, CVE-2024-39487, CVE-2024-42098, CVE-2024-40901) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS linux-image-5.15.0-1072-azure-fde 5.15.0-1072.81~20.04.1.1 linux-image-azure-fde 5.15.0.1072.81~20.04.1.49 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://ubuntu.com/security/notices/USN-7009-2 https://ubuntu.com/security/notices/USN-7009-1 CVE-2022-48772, CVE-2023-52884, CVE-2023-52887, CVE-2024-23848, CVE-2024-25741, CVE-2024-31076, CVE-2024-33621, CVE-2024-33847, CVE-2024-34027, CVE-2024-34777, CVE-2024-35247, CVE-2024-36014, CVE-2024-36015, CVE-2024-36032, CVE-2024-36270, CVE-2024-36286, CVE-2024-36489, CVE-2024-36894, CVE-2024-36971, CVE-2024-36972, CVE-2024-36974, CVE-2024-36978, CVE-2024-37078, CVE-2024-37356, CVE-2024-38381, CVE-2024-38546, CVE-2024-38547, CVE-2024-38548, CVE-2024-38549, CVE-2024-38550, CVE-2024-38552, CVE-2024-38555, CVE-2024-38558, CVE-2024-38559, CVE-2024-38560, CVE-2024-38565, CVE-2024-38567, CVE-2024-38571, CVE-2024-38573, CVE-2024-38578, CVE-2024-38579, CVE-2024-38580, CVE-2024-38582, CVE-2024-38583, CVE-2024-38586, CVE-2024-38587, CVE-2024-38588, CVE-2024-38589, CVE-2024-38590, CVE-2024-38591, CVE-2024-38596, CVE-2024-38597, CVE-2024-38598, CVE-2024-38599, CVE-2024-38601, CVE-2024-38605, CVE-2024-38607, CVE-2024-38610, CVE-2024-38612, CVE-2024-38613, CVE-2024-38615, CVE-2024-38618, CVE-2024-38619, CVE-2024-38621, CVE-2024-38623, CVE-2024-38624, CVE-2024-38627, CVE-2024-38633, CVE-2024-38634, CVE-2024-38635, CVE-2024-38637, CVE-2024-38659, CVE-2024-38661, CVE-2024-38662, CVE-2024-38780, CVE-2024-39276, CVE-2024-39277, CVE-2024-39301, CVE-2024-39466, CVE-2024-39467, CVE-2024-39468, CVE-2024-39469, CVE-2024-39471, CVE-2024-39475, CVE-2024-39480, CVE-2024-39482, CVE-2024-39487, CVE-2024-39488, CVE-2024-39489, CVE-2024-39490, CVE-2024-39493, CVE-2024-39495, CVE-2024-39499, CVE-2024-39500, CVE-2024-39501, CVE-2024-39502, CVE-2024-39503, CVE-2024-39505, CVE-2024-39506, CVE-2024-39507, CVE-2024-39509, CVE-2024-40901, CVE-2024-40902, CVE-2024-40904, CVE-2024-40905, CVE-2024-40908, CVE-2024-40911, CVE-2024-40912, CVE-2024-40914, CVE-2024-40916, CVE-2024-40927, CVE-2024-40929, CVE-2024-40931, CVE-2024-40932, CVE-2024-40934, CVE-2024-40937, CVE-2024-40941, CVE-2024-40942, CVE-2024-40943, CVE-2024-40945, CVE-2024-40954, CVE-2024-40956, CVE-2024-40957, CVE-2024-40958, CVE-2024-40959, CVE-2024-40960, CVE-2024-40961, CVE-2024-40963, CVE-2024-40967, CVE-2024-40968, CVE-2024-40970, CVE-2024-40971, CVE-2024-40974, CVE-2024-40976, CVE-2024-40978, CVE-2024-40980, CVE-2024-40981, CVE-2024-40983, CVE-2024-40984, CVE-2024-40987, CVE-2024-40988, CVE-2024-40990, CVE-2024-40994, CVE-2024-40995, CVE-2024-41000, CVE-2024-41002, CVE-2024-41004, CVE-2024-41005, CVE-2024-41006, CVE-2024-41007, CVE-2024-41027, CVE-2024-41034, CVE-2024-41035, CVE-2024-41040, CVE-2024-41041, CVE-2024-41044, CVE-2024-41046, CVE-2024-41047, CVE-2024-41048, CVE-2024-41049, CVE-2024-41055, CVE-2024-41087, CVE-2024-41089, CVE-2024-41092, CVE-2024-41093, CVE-2024-41095, CVE-2024-41097, CVE-2024-42068, CVE-2024-42070, CVE-2024-42076, CVE-2024-42077, CVE-2024-42080, CVE-2024-42082, CVE-2024-42084, CVE-2024-42085, CVE-2024-42086, CVE-2024-42087, CVE-2024-42089, CVE-2024-42090, CVE-2024-42092, CVE-2024-42093, CVE-2024-42094, CVE-2024-42095, CVE-2024-42096, CVE-2024-42097, CVE-2024-42098, CVE-2024-42101, CVE-2024-42102, CVE-2024-42104, CVE-2024-42105, CVE-2024-42106, CVE-2024-42109, CVE-2024-42115, CVE-2024-42119, CVE-2024-42120, CVE-2024-42121, CVE-2024-42124, CVE-2024-42127, CVE-2024-42130, CVE-2024-42131, CVE-2024-42137, CVE-2024-42140, CVE-2024-42145, CVE-2024-42148, CVE-2024-42152, CVE-2024-42153, CVE-2024-42154, CVE-2024-42157, CVE-2024-42161, CVE-2024-42223, CVE-2024-42224, CVE-2024-42225, CVE-2024-42229, CVE-2024-42232, CVE-2024-42236, CVE-2024-42240, CVE-2024-42244, CVE-2024-42247, CVE-2024-42270 Package Information: https://launchpad.net/ubuntu/+source/linux-azure-fde-5.15/5.15.0-1072.81~20.04.1.1

IOT TAXONOMY

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

local

TYPE

arbitrary

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Ubuntu

SOURCES

LAST UPDATE DATE

2026-06-19T21:32:03.251000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE