2025-01-06 19:03:52 +00:00

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{
"id": "CVE-2024-56663",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-12-27T15:15:26.187",
"lastModified": "2025-01-06T18:52:41.737",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: nl80211: fix NL80211_ATTR_MLO_LINK_ID off-by-one\n\nSince the netlink attribute range validation provides inclusive\nchecking, the *max* of attribute NL80211_ATTR_MLO_LINK_ID should be\nIEEE80211_MLD_MAX_NUM_LINKS - 1 otherwise causing an off-by-one.\n\nOne crash stack for demonstration:\n==================================================================\nBUG: KASAN: wild-memory-access in ieee80211_tx_control_port+0x3b6/0xca0 net/mac80211/tx.c:5939\nRead of size 6 at addr 001102080000000c by task fuzzer.386/9508\n\nCPU: 1 PID: 9508 Comm: syz.1.386 Not tainted 6.1.70 #2\nCall Trace:\n <TASK>\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x177/0x231 lib/dump_stack.c:106\n print_report+0xe0/0x750 mm/kasan/report.c:398\n kasan_report+0x139/0x170 mm/kasan/report.c:495\n kasan_check_range+0x287/0x290 mm/kasan/generic.c:189\n memcpy+0x25/0x60 mm/kasan/shadow.c:65\n ieee80211_tx_control_port+0x3b6/0xca0 net/mac80211/tx.c:5939\n rdev_tx_control_port net/wireless/rdev-ops.h:761 [inline]\n nl80211_tx_control_port+0x7b3/0xc40 net/wireless/nl80211.c:15453\n genl_family_rcv_msg_doit+0x22e/0x320 net/netlink/genetlink.c:756\n genl_family_rcv_msg net/netlink/genetlink.c:833 [inline]\n genl_rcv_msg+0x539/0x740 net/netlink/genetlink.c:850\n netlink_rcv_skb+0x1de/0x420 net/netlink/af_netlink.c:2508\n genl_rcv+0x24/0x40 net/netlink/genetlink.c:861\n netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline]\n netlink_unicast+0x74b/0x8c0 net/netlink/af_netlink.c:1352\n netlink_sendmsg+0x882/0xb90 net/netlink/af_netlink.c:1874\n sock_sendmsg_nosec net/socket.c:716 [inline]\n __sock_sendmsg net/socket.c:728 [inline]\n ____sys_sendmsg+0x5cc/0x8f0 net/socket.c:2499\n ___sys_sendmsg+0x21c/0x290 net/socket.c:2553\n __sys_sendmsg net/socket.c:2582 [inline]\n __do_sys_sendmsg net/socket.c:2591 [inline]\n __se_sys_sendmsg+0x19e/0x270 net/socket.c:2589\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x45/0x90 arch/x86/entry/common.c:81\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nUpdate the policy to ensure correct validation."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: nl80211: correcci\u00f3n del error NL80211_ATTR_MLO_LINK_ID en uno Dado que la validaci\u00f3n del rango del atributo netlink proporciona una verificaci\u00f3n inclusiva, el *m\u00e1ximo* del atributo NL80211_ATTR_MLO_LINK_ID debe ser IEEE80211_MLD_MAX_NUM_LINKS - 1, lo que de lo contrario provocar\u00eda un error de uno. Una pila de fallos para demostraci\u00f3n: ==================================================================== ERROR: KASAN: acceso a memoria salvaje en ieee80211_tx_control_port+0x3b6/0xca0 net/mac80211/tx.c:5939 Lectura de tama\u00f1o 6 en la direcci\u00f3n 001102080000000c por la tarea fuzzer.386/9508 CPU: 1 PID: 9508 Comm: syz.1.386 No contaminado 6.1.70 #2 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:88 [en l\u00ednea] dump_stack_lvl+0x177/0x231 lib/dump_stack.c:106 print_report+0xe0/0x750 mm/kasan/report.c:398 kasan_report+0x139/0x170 mm/kasan/report.c:495 kasan_check_range+0x287/0x290 mm/kasan/generic.c:189 memcpy+0x25/0x60 mm/kasan/shadow.c:65 ieee80211_tx_control_port+0x3b6/0xca0 net/mac80211/tx.c:5939 rdev_tx_control_port net/wireless/rdev-ops.h:761 [en l\u00ednea] nl80211_tx_control_port+0x7b3/0xc40 net/wireless/nl80211.c:15453 genl_family_rcv_msg_doit+0x22e/0x320 net/netlink/genetlink.c:756 genl_family_rcv_msg net/netlink/genetlink.c:833 [en l\u00ednea] genl_rcv_msg+0x539/0x740 net/netlink/genetlink.c:850 netlink_rcv_skb+0x1de/0x420 net/netlink/af_netlink.c:2508 genl_rcv+0x24/0x40 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1326 [en l\u00ednea] netlink_unicast+0x74b/0x8c0 net/netlink/af_netlink.c:1352 netlink_sendmsg+0x882/0xb90 net/netlink/af_netlink.c:1874 sock_sendmsg_nosec net/socket.c:716 [en l\u00ednea] __sock_sendmsg net/socket.c:728 [en l\u00ednea] ____sys_sendmsg+0x5cc/0x8f0 net/socket.c:2499 ___sys_sendmsg+0x21c/0x290 net/socket.c:2553 __sys_sendmsg net/socket.c:2582 [en l\u00ednea] __do_sys_sendmsg net/socket.c:2591 [en l\u00ednea] __se_sys_sendmsg+0x19e/0x270 net/socket.c:2589 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x45/0x90 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd Actualice la pol\u00edtica para garantizar una validaci\u00f3n correcta."
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 5.2
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-193"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
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"references": [
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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