443 lines
23 KiB
JSON
443 lines
23 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2024-56650",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-12-27T15:00:39.840Z",
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"datePublished": "2024-12-27T15:02:50.098Z",
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"dateUpdated": "2026-10-15T01:00:07.163Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T11:45:47.823Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: x_tables: fix LED ID check in led_tg_check()\n\nSyzbot has reported the following BUG detected by KASAN:\n\nBUG: KASAN: slab-out-of-bounds in strlen+0x58/0x70\nRead of size 1 at addr ffff8881022da0c8 by task repro/5879\n...\nCall Trace:\n <TASK>\n dump_stack_lvl+0x241/0x360\n ? __pfx_dump_stack_lvl+0x10/0x10\n ? __pfx__printk+0x10/0x10\n ? _printk+0xd5/0x120\n ? __virt_addr_valid+0x183/0x530\n ? __virt_addr_valid+0x183/0x530\n print_report+0x169/0x550\n ? __virt_addr_valid+0x183/0x530\n ? __virt_addr_valid+0x183/0x530\n ? __virt_addr_valid+0x45f/0x530\n ? __phys_addr+0xba/0x170\n ? strlen+0x58/0x70\n kasan_report+0x143/0x180\n ? strlen+0x58/0x70\n strlen+0x58/0x70\n kstrdup+0x20/0x80\n led_tg_check+0x18b/0x3c0\n xt_check_target+0x3bb/0xa40\n ? __pfx_xt_check_target+0x10/0x10\n ? stack_depot_save_flags+0x6e4/0x830\n ? nft_target_init+0x174/0xc30\n nft_target_init+0x82d/0xc30\n ? __pfx_nft_target_init+0x10/0x10\n ? nf_tables_newrule+0x1609/0x2980\n ? nf_tables_newrule+0x1609/0x2980\n ? rcu_is_watching+0x15/0xb0\n ? nf_tables_newrule+0x1609/0x2980\n ? nf_tables_newrule+0x1609/0x2980\n ? __kmalloc_noprof+0x21a/0x400\n nf_tables_newrule+0x1860/0x2980\n ? __pfx_nf_tables_newrule+0x10/0x10\n ? __nla_parse+0x40/0x60\n nfnetlink_rcv+0x14e5/0x2ab0\n ? __pfx_validate_chain+0x10/0x10\n ? __pfx_nfnetlink_rcv+0x10/0x10\n ? __lock_acquire+0x1384/0x2050\n ? netlink_deliver_tap+0x2e/0x1b0\n ? __pfx_lock_release+0x10/0x10\n ? netlink_deliver_tap+0x2e/0x1b0\n netlink_unicast+0x7f8/0x990\n ? __pfx_netlink_unicast+0x10/0x10\n ? __virt_addr_valid+0x183/0x530\n ? __check_object_size+0x48e/0x900\n netlink_sendmsg+0x8e4/0xcb0\n ? __pfx_netlink_sendmsg+0x10/0x10\n ? aa_sock_msg_perm+0x91/0x160\n ? __pfx_netlink_sendmsg+0x10/0x10\n __sock_sendmsg+0x223/0x270\n ____sys_sendmsg+0x52a/0x7e0\n ? __pfx_____sys_sendmsg+0x10/0x10\n __sys_sendmsg+0x292/0x380\n ? __pfx___sys_sendmsg+0x10/0x10\n ? lockdep_hardirqs_on_prepare+0x43d/0x780\n ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10\n ? exc_page_fault+0x590/0x8c0\n ? do_syscall_64+0xb6/0x230\n do_syscall_64+0xf3/0x230\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n...\n </TASK>\n\nSince an invalid (without '\\0' byte at all) byte sequence may be passed\nfrom userspace, add an extra check to ensure that such a sequence is\nrejected as possible ID and so never passed to 'kstrdup()' and further."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
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"baseScore": 7.1,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The vulnerable path is entered only through local syscalls — `sendmsg()` on a NETLINK_NETFILTER socket (nf_tables/nft_compat) or `setsockopt(IPT_SO_SET_REPLACE)` on the legacy iptables interface. No remote peer can supply the malformed `xt_led_info` blob.\nAC:L - The attacker fully controls all 40 bytes of the target info blob and simply omits any NUL byte, making `strlen()` read out of bounds deterministically on every attempt; there is no race, no memory-layout precondition, and the required xt_LED module is present in stock distro and embedded kernel configs.\nPR:L - `nf_tables_newrule` requires CAP_NET_ADMIN only in the network namespace's owning user namespace, which any unprivileged user obtains with `unshare -Urn` — exactly how the syzbot reproducer reached it.\nUI:N - The attacker performs the entire sequence — create netns, add an nftables rule with an xt LED target — with no action by any other user, and reads the leaked bytes back from sysfs itself.\nS:U - The out-of-bounds read stays within the kernel's own heap and the disclosed data is exposed through kernel-managed interfaces; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - This is an unbounded slab out-of-bounds read whose contents are not merely touched but `kstrdup()`'d into a globally registered LED trigger name, then printed into the world-readable (0644) `/sys/class/leds/*/trigger` file, plus an `-EEXIST` collision oracle from `led_trigger_register()` — giving an unprivileged user a practical adjacent-kernel-heap disclosure primitive that can leak pointers and defeat KASLR/heap-layout hardening.\nI:N - `kstrdup()` allocates exactly `strlen()+1` bytes and the sysfs printer clamps with `vscnprintf`, so no memory is written out of bounds and no kernel data structure is corrupted by the flaw.\nA:H - The `strlen()` walk continues until it happens to find a zero byte and can fault on a KFENCE guard page — enabled by default in production distro and Android kernels — or run past mapped memory, oopsing the kernel; on KASAN builds it panics outright, and the attacker can repeat the attempt arbitrarily."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/netfilter/xt_LED.c"
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],
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"versions": [
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{
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"version": "268cb38e1802db560c73167e643f14a3dcb4b07c",
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"lessThan": "147a42bb02de8735cb08476be6d0917987d022c2",
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"status": "affected",
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"versionType": "git"
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{
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"version": "268cb38e1802db560c73167e643f14a3dcb4b07c",
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"version": "268cb38e1802db560c73167e643f14a3dcb4b07c",
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"status": "affected",
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},
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{
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"version": "268cb38e1802db560c73167e643f14a3dcb4b07c",
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"version": "268cb38e1802db560c73167e643f14a3dcb4b07c",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"net/netfilter/xt_LED.c"
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],
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"versions": [
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{
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"version": "2.6.30",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "2.6.30",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.4.287",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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},
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{
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"version": "5.10.231",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"lessThanOrEqual": "5.15.*",
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},
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"status": "unaffected",
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}
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],
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"title": "netfilter: x_tables: fix LED ID check in led_tg_check()",
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}
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2024-56650",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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},
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2025-10-01T20:00:22.683789Z"
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}
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"descriptions": [
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"type": "CWE",
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"description": "CWE-125 Out-of-bounds Read"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2025-10-01T20:07:11.150Z"
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}
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},
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2025-11-03T20:51:56.813Z"
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}
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},
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{
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"x_adpType": "supplier",
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"providerMetadata": {
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"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
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"shortName": "siemens-SADP",
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"dateUpdated": "2026-10-15T01:00:07.163Z"
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},
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"affected": [
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.0",
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"lessThan": "V3.1.5",
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}
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{
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.0",
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"lessThan": "V3.1.5",
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}
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],
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"defaultStatus": "unknown"
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},
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
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"versions": [
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{
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"status": "affected",
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"lessThan": "V3.1.5",
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}
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],
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},
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{
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"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.0",
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"lessThan": "V3.1.5",
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}
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],
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},
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{
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"vendor": "Siemens",
|
|
"product": "RUGGEDCOM RST2428P",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "0",
|
|
"lessThan": "V3.2",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "0",
|
|
"lessThan": "V3.2",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SCALANCE XCM-/XRM-/XCH-/XRH-300 family",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "0",
|
|
"lessThan": "V3.2",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
|
|
},
|
|
{
|
|
"url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
} |