CVE-2024-47707

{"id": "CVE-2024-47707", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-10-21T12:15:07.220", "references": [{"url": "https://git.kernel.org/stable/c/04ccecfa959d3b9ae7348780d8e379c6486176ac", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/08409e401622e2896b4313be9f781bde8a2a6a53", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/0ceb2f2b5c813f932d6e60d3feec5e7e713da783", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9a0ddc73be37d19dff1ba08290af34e707d18e50", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f2bd9635543ca41533b870f420872819f8331823", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: avoid possible NULL deref in rt6_uncached_list_flush_dev()\n\nBlamed commit accidentally removed a check for rt->rt6i_idev being NULL,\nas spotted by syzbot:\n\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nCPU: 1 UID: 0 PID: 10998 Comm: syz-executor Not tainted 6.11.0-rc6-syzkaller-00208-g625403177711 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\n RIP: 0010:rt6_uncached_list_flush_dev net/ipv6/route.c:177 [inline]\n RIP: 0010:rt6_disable_ip+0x33e/0x7e0 net/ipv6/route.c:4914\nCode: 41 80 3c 04 00 74 0a e8 90 d0 9b f7 48 8b 7c 24 08 48 8b 07 48 89 44 24 10 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 64 d0 9b f7 48 8b 44 24 18 49 39 06\nRSP: 0018:ffffc900047374e0 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 1ffff1100fdf8f33 RCX: dffffc0000000000\nRDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88807efc78c0\nRBP: ffffc900047375d0 R08: 0000000000000003 R09: fffff520008e6e8c\nR10: dffffc0000000000 R11: fffff520008e6e8c R12: 1ffff1100fdf8f18\nR13: ffff88807efc7998 R14: 0000000000000000 R15: ffff88807efc7930\nFS: 0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000020002a80 CR3: 0000000022f62000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n <TASK>\n addrconf_ifdown+0x15d/0x1bd0 net/ipv6/addrconf.c:3856\n addrconf_notify+0x3cb/0x1020\n notifier_call_chain+0x19f/0x3e0 kernel/notifier.c:93\n call_netdevice_notifiers_extack net/core/dev.c:2032 [inline]\n call_netdevice_notifiers net/core/dev.c:2046 [inline]\n unregister_netdevice_many_notify+0xd81/0x1c40 net/core/dev.c:11352\n unregister_netdevice_many net/core/dev.c:11414 [inline]\n unregister_netdevice_queue+0x303/0x370 net/core/dev.c:11289\n unregister_netdevice include/linux/netdevice.h:3129 [inline]\n __tun_detach+0x6b9/0x1600 drivers/net/tun.c:685\n tun_detach drivers/net/tun.c:701 [inline]\n tun_chr_close+0x108/0x1b0 drivers/net/tun.c:3510\n __fput+0x24a/0x8a0 fs/file_table.c:422\n task_work_run+0x24f/0x310 kernel/task_work.c:228\n exit_task_work include/linux/task_work.h:40 [inline]\n do_exit+0xa2f/0x27f0 kernel/exit.c:882\n do_group_exit+0x207/0x2c0 kernel/exit.c:1031\n __do_sys_exit_group kernel/exit.c:1042 [inline]\n __se_sys_exit_group kernel/exit.c:1040 [inline]\n __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1040\n x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f1acc77def9\nCode: Unable to access opcode bytes at 0x7f1acc77decf.\nRSP: 002b:00007ffeb26fa738 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7\nRAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1acc77def9\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043\nRBP: 00007f1acc7dd508 R08: 00007ffeb26f84d7 R09: 0000000000000003\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001\nR13: 0000000000000003 R14: 00000000ffffffff R15: 00007ffeb26fa8e0\n </TASK>\nModules linked in:\n---[ end trace 0000000000000000 ]---\n RIP: 0010:rt6_uncached_list_flush_dev net/ipv6/route.c:177 [inline]\n RIP: 0010:rt6_disable_ip+0x33e/0x7e0 net/ipv6/route.c:4914\nCode: 41 80 3c 04 00 74 0a e8 90 d0 9b f7 48 8b 7c 24 08 48 8b 07 48 89 44 24 10 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 64 d0 9b f7 48 8b 44 24 18 49 39 06\nRSP: 0018:ffffc900047374e0 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 1ffff1100fdf8f33 RCX: dffffc0000000000\nRDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88807efc78c0\nR\n---truncated---"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipv6: evitar posible desreferencia NULL en rt6_uncached_list_flush_dev() el commit culpable elimin\u00f3 accidentalmente una comprobaci\u00f3n para que rt-&gt;rt6i_idev fuera NULL, como lo detect\u00f3 syzbot: Oops: error de protecci\u00f3n general, probablemente para la direcci\u00f3n no can\u00f3nica 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref en el rango [0x000000000000000-0x0000000000000007] CPU: 1 UID: 0 PID: 10998 Comm: syz-executor No contaminado 6.11.0-rc6-syzkaller-00208-g625403177711 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:rt6_uncached_list_flush_dev net/ipv6/route.c:177 [en l\u00ednea] RIP: 0010:rt6_disable_ip+0x33e/0x7e0 net/ipv6/route.c:4914 C\u00f3digo: 41 80 3c 04 00 74 0a e8 90 d0 9b f7 48 8b 7c 24 08 48 8b 07 48 89 44 24 10 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df &lt;80&gt; 3c 08 00 74 08 4c 89 f7 e8 64 d0 9b f7 48 8b 44 24 18 49 39 06 RSP: 0018:ffffc900047374e0 EFLAGS: 00010246 RAX: 000000000000000 RBX: 1ffff1100fdf8f33 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88807efc78c0 RBP: ffffc900047375d0 R08: 0000000000000003 R09: fffff520008e6e8c R10: dffffc0000000000 R11: fffff520008e6e8c R12: 1ffff1100fdf8f18 R13: ffff88807efc7998 R14: 0000000000000000 R15: ffff88807efc7930 FS: 000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020002a80 CR3: 0000000022f62000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Seguimiento de llamadas: addrconf_ifdown+0x15d/0x1bd0 net/ipv6/addrconf.c:3856 addrconf_notify+0x3cb/0x1020 notificador_cadena_llamada+0x19f/0x3e0 kernel/notifier.c:93 llamar_notificadores_dispositivo_red_extack net/core/dev.c:2032 [en l\u00ednea] llamar_notificadores_dispositivo_red_net/core/dev.c:2046 [en l\u00ednea] anular_registro_de_varios_dispositivos_red_notificar+0xd81/0x1c40 net/core/dev.c:11352 anular_registro_de_varios_dispositivos_red_net/core/dev.c:11414 [en l\u00ednea] anular_registro_de_cola_de_dispositivos_red_+0x303/0x370 net/core/dev.c:11289 anular_registro_de_dispositivo_red include/linux/netdevice.h:3129 [en l\u00ednea] __tun_detach+0x6b9/0x1600 drivers/net/tun.c:685 tun_detach drivers/net/tun.c:701 [en l\u00ednea] tun_chr_close+0x108/0x1b0 drivers/net/tun.c:3510 __fput+0x24a/0x8a0 fs/file_table.c:422 task_work_run+0x24f/0x310 kernel/task_work.c:228 exit_task_work include/linux/task_work.h:40 [en l\u00ednea] do_exit+0xa2f/0x27f0 kernel/exit.c:882 do_group_exit+0x207/0x2c0 kernel/exit.c:1031 __do_sys_exit_group kernel/exit.c:1042 [en l\u00ednea] __se_sys_exit_group kernel/exit.c:1040 [en l\u00ednea] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1040 x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [en l\u00ednea] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f DESCARGA: 0033:0x7f1acc77def9 C\u00f3digo: No se puede acceder a los bytes del c\u00f3digo de operaci\u00f3n en 0x7f1acc77decf. RSP: 002b:00007ffeb26fa738 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1acc77def9 RDX: 0000000000000000 RSI: 000000000000000 RDI: 0000000000000043 RBP: 00007f1acc7dd508 R08: 00007ffeb26f84d7 R09: 0000000000000003 R10: 00000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000003 R14: 00000000ffffffff R15: 00007ffeb26fa8e0 M\u00f3dulos vinculados en: ---[ fin del seguimiento 000000000000000 ]--- RIP: 0010:rt6_uncached_list_flush_dev net/ipv6/route.c:177 [en l\u00ednea] RIP: 0010:rt6_disable_ip+0x33e/0x7e0 net/ipv6/route.c:4914 C\u00f3digo: 41 80 3c 04 00 74 0a e8 90 d0 9b f7 48 8b 7c 24 08 48 8b 07 48 89 44 24 10 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df &lt;80&gt; 3c 08 00 74 08 4c 89 f7 e8 64 d0 9b f7 48 8b 44 24 18 49 39 06 RSP: 0018:ffffc900047374e0 EFLAGS: 00010246 ---truncado---"}], "lastModified": "2024-10-24T13:44:21.007", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9EE182A1-D1E4-4CF2-BB49-EB811E4351DE", "versionEndExcluding": "6.1.113", "versionStartIncluding": "4.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D448821D-C085-4CAF-88FA-2DDE7BE21976", "versionEndExcluding": "6.6.54", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CE94BB8D-B0AB-4563-9ED7-A12122B56EBE", "versionEndExcluding": "6.10.13", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AB755D26-97F4-43B6-8604-CD076811E181", "versionEndExcluding": "6.11.2", "versionStartIncluding": "6.11"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}