ghsa-23gm-fr88-2r8c
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix potential OOBs in smb2_parse_contexts()
Validate offsets and lengths before dereferencing create contexts in smb2_parse_contexts().
This fixes following oops when accessing invalid create contexts from server:
BUG: unable to handle page fault for address: ffff8881178d8cc3
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 4a01067 P4D 4a01067 PUD 0
Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 3 PID: 1736 Comm: mount.cifs Not tainted 6.7.0-rc4 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014
RIP: 0010:smb2_parse_contexts+0xa0/0x3a0 [cifs]
Code: f8 10 75 13 48 b8 93 ad 25 50 9c b4 11 e7 49 39 06 0f 84 d2 00
00 00 8b 45 00 85 c0 74 61 41 29 c5 48 01 c5 41 83 fd 0f 76 55 <0f> b7
7d 04 0f b7 45 06 4c 8d 74 3d 00 66 83 f8 04 75 bc ba 04 00
RSP: 0018:ffffc900007939e0 EFLAGS: 00010216
RAX: ffffc90000793c78 RBX: ffff8880180cc000 RCX: ffffc90000793c90
RDX: ffffc90000793cc0 RSI: ffff8880178d8cc0 RDI: ffff8880180cc000
RBP: ffff8881178d8cbf R08: ffffc90000793c22 R09: 0000000000000000
R10: ffff8880180cc000 R11: 0000000000000024 R12: 0000000000000000
R13: 0000000000000020 R14: 0000000000000000 R15: ffffc90000793c22
FS: 00007f873753cbc0(0000) GS:ffff88806bc00000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8881178d8cc3 CR3: 00000000181ca000 CR4: 0000000000750ef0
PKRU: 55555554
Call Trace:
{
"affected": [],
"aliases": [
"CVE-2023-52434"
],
"database_specific": {
"cwe_ids": [
"CWE-119"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-20T18:15:50Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix potential OOBs in smb2_parse_contexts()\n\nValidate offsets and lengths before dereferencing create contexts in\nsmb2_parse_contexts().\n\nThis fixes following oops when accessing invalid create contexts from\nserver:\n\n BUG: unable to handle page fault for address: ffff8881178d8cc3\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 4a01067 P4D 4a01067 PUD 0\n Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 3 PID: 1736 Comm: mount.cifs Not tainted 6.7.0-rc4 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS\n rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014\n RIP: 0010:smb2_parse_contexts+0xa0/0x3a0 [cifs]\n Code: f8 10 75 13 48 b8 93 ad 25 50 9c b4 11 e7 49 39 06 0f 84 d2 00\n 00 00 8b 45 00 85 c0 74 61 41 29 c5 48 01 c5 41 83 fd 0f 76 55 \u003c0f\u003e b7\n 7d 04 0f b7 45 06 4c 8d 74 3d 00 66 83 f8 04 75 bc ba 04 00\n RSP: 0018:ffffc900007939e0 EFLAGS: 00010216\n RAX: ffffc90000793c78 RBX: ffff8880180cc000 RCX: ffffc90000793c90\n RDX: ffffc90000793cc0 RSI: ffff8880178d8cc0 RDI: ffff8880180cc000\n RBP: ffff8881178d8cbf R08: ffffc90000793c22 R09: 0000000000000000\n R10: ffff8880180cc000 R11: 0000000000000024 R12: 0000000000000000\n R13: 0000000000000020 R14: 0000000000000000 R15: ffffc90000793c22\n FS: 00007f873753cbc0(0000) GS:ffff88806bc00000(0000)\n knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: ffff8881178d8cc3 CR3: 00000000181ca000 CR4: 0000000000750ef0\n PKRU: 55555554\n Call Trace:\n \u003cTASK\u003e\n ? __die+0x23/0x70\n ? page_fault_oops+0x181/0x480\n ? search_module_extables+0x19/0x60\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? exc_page_fault+0x1b6/0x1c0\n ? asm_exc_page_fault+0x26/0x30\n ? smb2_parse_contexts+0xa0/0x3a0 [cifs]\n SMB2_open+0x38d/0x5f0 [cifs]\n ? smb2_is_path_accessible+0x138/0x260 [cifs]\n smb2_is_path_accessible+0x138/0x260 [cifs]\n cifs_is_path_remote+0x8d/0x230 [cifs]\n cifs_mount+0x7e/0x350 [cifs]\n cifs_smb3_do_mount+0x128/0x780 [cifs]\n smb3_get_tree+0xd9/0x290 [cifs]\n vfs_get_tree+0x2c/0x100\n ? capable+0x37/0x70\n path_mount+0x2d7/0xb80\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? _raw_spin_unlock_irqrestore+0x44/0x60\n __x64_sys_mount+0x11a/0x150\n do_syscall_64+0x47/0xf0\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\n RIP: 0033:0x7f8737657b1e",
"id": "GHSA-23gm-fr88-2r8c",
"modified": "2024-06-26T00:31:34Z",
"published": "2024-02-20T18:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52434"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/13fb0fc4917621f3dfa285a27eaf7151d770b5e5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/17a0f64cc02d4972e21c733d9f21d1c512963afa"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1ae3c59355dc9882e09c020afe8ffbd895ad0f29"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6726429c18c62dbf5e96ebbd522f262e016553fb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/890bc4fac3c0973a49cac35f634579bebba7fe48"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/af1689a9b7701d9907dfc84d2a4b57c4bc907144"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
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