CVE-2024-47701— Linux kernel 安全漏洞
影响版本矩阵 20
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | e8e948e7802a2ab05c146d3e72a39b93b5718236< 5b076d37e8d99918e9294bd6b35a8bbb436819b0 | affected |
e8e948e7802a2ab05c146d3e72a39b93b5718236< 8adf0eb4e361a9e060d54f4bd0ac9c5d85277d20 | affected | ||
e8e948e7802a2ab05c146d3e72a39b93b5718236< 7fc22c3b3ffc0e952f5e0062dd11aa6ae76affba | affected | ||
e8e948e7802a2ab05c146d3e72a39b93b5718236< be2e9b111e2790962cc66a177869b4e9717b4e29 | affected | ||
e8e948e7802a2ab05c146d3e72a39b93b5718236< ea32883e4a03ed575a2eb7a66542022312bde477 | affected | ||
e8e948e7802a2ab05c146d3e72a39b93b5718236< 2a6579ef5f2576a940125729f7409cc182f1c8df | affected | ||
e8e948e7802a2ab05c146d3e72a39b93b5718236< 371d0bacecd529f887ea2547333d9173e7bcdc0a | affected | ||
e8e948e7802a2ab05c146d3e72a39b93b5718236< ccb8c18076e2e630fea23fbec583cdad61787fc5 | affected | ||
| … +12 条更多 | |||
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一、 漏洞 CVE-2024-47701 基础信息
漏洞信息
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Vulnerability Title
ext4: avoid OOB when system.data xattr changes underneath the filesystem
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ext4: avoid OOB when system.data xattr changes underneath the filesystem When looking up for an entry in an inlined directory, if e_value_offs is changed underneath the filesystem by some change in the block device, it will lead to an out-of-bounds access that KASAN detects as an UAF. EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. loop0: detected capacity change from 2048 to 2047 ================================================================== BUG: KASAN: use-after-free in ext4_search_dir+0xf2/0x1c0 fs/ext4/namei.c:1500 Read of size 1 at addr ffff88803e91130f by task syz-executor269/5103 CPU: 0 UID: 0 PID: 5103 Comm: syz-executor269 Not tainted 6.11.0-rc4-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 ext4_search_dir+0xf2/0x1c0 fs/ext4/namei.c:1500 ext4_find_inline_entry+0x4be/0x5e0 fs/ext4/inline.c:1697 __ext4_find_entry+0x2b4/0x1b30 fs/ext4/namei.c:1573 ext4_lookup_entry fs/ext4/namei.c:1727 [inline] ext4_lookup+0x15f/0x750 fs/ext4/namei.c:1795 lookup_one_qstr_excl+0x11f/0x260 fs/namei.c:1633 filename_create+0x297/0x540 fs/namei.c:3980 do_symlinkat+0xf9/0x3a0 fs/namei.c:4587 __do_sys_symlinkat fs/namei.c:4610 [inline] __se_sys_symlinkat fs/namei.c:4607 [inline] __x64_sys_symlinkat+0x95/0xb0 fs/namei.c:4607 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3e73ced469 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff4d40c258 EFLAGS: 00000246 ORIG_RAX: 000000000000010a RAX: ffffffffffffffda RBX: 0032656c69662f2e RCX: 00007f3e73ced469 RDX: 0000000020000200 RSI: 00000000ffffff9c RDI: 00000000200001c0 RBP: 0000000000000000 R08: 00007fff4d40c290 R09: 00007fff4d40c290 R10: 0023706f6f6c2f76 R11: 0000000000000246 R12: 00007fff4d40c27c R13: 0000000000000003 R14: 431bde82d7b634db R15: 00007fff4d40c2b0 </TASK> Calling ext4_xattr_ibody_find right after reading the inode with ext4_get_inode_loc will lead to a check of the validity of the xattrs, avoiding this problem.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ext4文件系统在系统.data扩展属性变化时可能导致越界访问。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2024-47701 的公开POC
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|---|
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CVE-2024-47701 补丁与修复 (5)
同批安全公告 · Linux · 2024-10-21 · 共 372 条
| CVE-2022-48985 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-49855 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-50033 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-47695 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2022-49003 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-50046 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-50047 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-50043 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-49996 | 9.4 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-47678 | 9.4 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-49950 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-49936 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49017 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49015 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-49939 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-50041 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-49930 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48967 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48964 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48962 | 8.8 HIGH | Linux kernel 安全漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2024-47701
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