NVD

CVE-2023-52885 Detail

Modified

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

Description

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix UAF in svc_tcp_listen_data_ready() After the listener svc_sock is freed, and before invoking svc_tcp_accept() for the established child sock, there is a window that the newsock retaining a freed listener svc_sock in sk_user_data which cloning from parent. In the race window, if data is received on the newsock, we will observe use-after-free report in svc_tcp_listen_data_ready(). Reproduce by two tasks: 1. while :; do rpc.nfsd 0 ; rpc.nfsd; done 2. while :; do echo "" | ncat -4 127.0.0.1 2049 ; done KASAN report: ================================================================== BUG: KASAN: slab-use-after-free in svc_tcp_listen_data_ready+0x1cf/0x1f0 [sunrpc] Read of size 8 at addr ffff888139d96228 by task nc/102553 CPU: 7 PID: 102553 Comm: nc Not tainted 6.3.0+ #18 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020 Call Trace: <IRQ> dump_stack_lvl+0x33/0x50 print_address_description.constprop.0+0x27/0x310 print_report+0x3e/0x70 kasan_report+0xae/0xe0 svc_tcp_listen_data_ready+0x1cf/0x1f0 [sunrpc] tcp_data_queue+0x9f4/0x20e0 tcp_rcv_established+0x666/0x1f60 tcp_v4_do_rcv+0x51c/0x850 tcp_v4_rcv+0x23fc/0x2e80 ip_protocol_deliver_rcu+0x62/0x300 ip_local_deliver_finish+0x267/0x350 ip_local_deliver+0x18b/0x2d0 ip_rcv+0x2fb/0x370 __netif_receive_skb_one_core+0x166/0x1b0 process_backlog+0x24c/0x5e0 __napi_poll+0xa2/0x500 net_rx_action+0x854/0xc90 __do_softirq+0x1bb/0x5de do_softirq+0xcb/0x100 </IRQ> <TASK> ... </TASK> Allocated by task 102371: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 __kasan_kmalloc+0x7b/0x90 svc_setup_socket+0x52/0x4f0 [sunrpc] svc_addsock+0x20d/0x400 [sunrpc] __write_ports_addfd+0x209/0x390 [nfsd] write_ports+0x239/0x2c0 [nfsd] nfsctl_transaction_write+0xac/0x110 [nfsd] vfs_write+0x1c3/0xae0 ksys_write+0xed/0x1c0 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc Freed by task 102551: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_save_free_info+0x2a/0x50 __kasan_slab_free+0x106/0x190 __kmem_cache_free+0x133/0x270 svc_xprt_free+0x1e2/0x350 [sunrpc] svc_xprt_destroy_all+0x25a/0x440 [sunrpc] nfsd_put+0x125/0x240 [nfsd] nfsd_svc+0x2cb/0x3c0 [nfsd] write_threads+0x1ac/0x2a0 [nfsd] nfsctl_transaction_write+0xac/0x110 [nfsd] vfs_write+0x1c3/0xae0 ksys_write+0xed/0x1c0 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc Fix the UAF by simply doing nothing in svc_tcp_listen_data_ready() if state != TCP_LISTEN, that will avoid dereferencing svsk for all child socket.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 7.8 HIGH

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].

URL	Source(s)	Tag(s)
https://git.kernel.org/stable/c/42725e5c1b181b757ba11d804443922982334d9b	CVE, kernel.org	Patch
https://git.kernel.org/stable/c/7e1f989055622fd086c5dfb291fc72adf5660b6f	CVE, kernel.org	Patch
https://git.kernel.org/stable/c/c7b8c2d06e437639694abe76978e915cfb73f428	CVE, kernel.org	Patch
https://git.kernel.org/stable/c/cd5ec3ee52ce4b7e283cc11facfa420c297c8065	CVE, kernel.org	Patch
https://git.kernel.org/stable/c/dfc896c4a75cb8cd7cb2dfd9b469cf1e3f004254	CVE, kernel.org	Patch
https://git.kernel.org/stable/c/ef047411887ff0845afd642d6a687819308e1a4e	CVE, kernel.org	Patch
https://git.kernel.org/stable/c/fbf4ace39b2e4f3833236afbb2336edbafd75eee	CVE, kernel.org	Patch
https://git.kernel.org/stable/c/fc80fc2d4e39137869da3150ee169b40bf879287	CVE, kernel.org	Patch

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-416	Use After Free	NIST

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

3 change records found show changes

CVE Modified by CVE 11/21/2024 3:40:48 AM

Action	Type	New Value
Added	Reference	https://git.kernel.org/stable/c/42725e5c1b181b757ba11d804443922982334d9b
Added	Reference	https://git.kernel.org/stable/c/7e1f989055622fd086c5dfb291fc72adf5660b6f
Added	Reference	https://git.kernel.org/stable/c/c7b8c2d06e437639694abe76978e915cfb73f428
Added	Reference	https://git.kernel.org/stable/c/cd5ec3ee52ce4b7e283cc11facfa420c297c8065
Added	Reference	https://git.kernel.org/stable/c/dfc896c4a75cb8cd7cb2dfd9b469cf1e3f004254
Added	Reference	https://git.kernel.org/stable/c/ef047411887ff0845afd642d6a687819308e1a4e
Added	Reference	https://git.kernel.org/stable/c/fbf4ace39b2e4f3833236afbb2336edbafd75eee
Added	Reference	https://git.kernel.org/stable/c/fc80fc2d4e39137869da3150ee169b40bf879287

Initial Analysis by NIST 8/21/2024 1:03:01 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added	CWE		NIST CWE-416
Added	CPE Configuration		OR cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 4.8 up to (excluding) 4.14.322 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 4.15 up to (excluding) 4.19.291 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 4.20 up to (excluding) 5.4.251 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.5 up to (excluding) 5.10.188 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.11 up to (excluding) 5.15.121 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.16 up to (excluding) 6.1.39 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 6.2 up to (excluding) 6.4.4
Changed	Reference Type	https://git.kernel.org/stable/c/42725e5c1b181b757ba11d804443922982334d9b No Types Assigned	https://git.kernel.org/stable/c/42725e5c1b181b757ba11d804443922982334d9b Patch
Changed	Reference Type	https://git.kernel.org/stable/c/7e1f989055622fd086c5dfb291fc72adf5660b6f No Types Assigned	https://git.kernel.org/stable/c/7e1f989055622fd086c5dfb291fc72adf5660b6f Patch
Changed	Reference Type	https://git.kernel.org/stable/c/c7b8c2d06e437639694abe76978e915cfb73f428 No Types Assigned	https://git.kernel.org/stable/c/c7b8c2d06e437639694abe76978e915cfb73f428 Patch
Changed	Reference Type	https://git.kernel.org/stable/c/cd5ec3ee52ce4b7e283cc11facfa420c297c8065 No Types Assigned	https://git.kernel.org/stable/c/cd5ec3ee52ce4b7e283cc11facfa420c297c8065 Patch
Changed	Reference Type	https://git.kernel.org/stable/c/dfc896c4a75cb8cd7cb2dfd9b469cf1e3f004254 No Types Assigned	https://git.kernel.org/stable/c/dfc896c4a75cb8cd7cb2dfd9b469cf1e3f004254 Patch
Changed	Reference Type	https://git.kernel.org/stable/c/ef047411887ff0845afd642d6a687819308e1a4e No Types Assigned	https://git.kernel.org/stable/c/ef047411887ff0845afd642d6a687819308e1a4e Patch
Changed	Reference Type	https://git.kernel.org/stable/c/fbf4ace39b2e4f3833236afbb2336edbafd75eee No Types Assigned	https://git.kernel.org/stable/c/fbf4ace39b2e4f3833236afbb2336edbafd75eee Patch
Changed	Reference Type	https://git.kernel.org/stable/c/fc80fc2d4e39137869da3150ee169b40bf879287 No Types Assigned	https://git.kernel.org/stable/c/fc80fc2d4e39137869da3150ee169b40bf879287 Patch

New CVE Received from kernel.org 7/14/2024 4:15:01 AM

Action	Type	New Value
Added	Description	Record truncated, showing 2048 of 2776 characters. View Entire Change Record In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix UAF in svc_tcp_listen_data_ready() After the listener svc_sock is freed, and before invoking svc_tcp_accept() for the established child sock, there is a window that the newsock retaining a freed listener svc_sock in sk_user_data which cloning from parent. In the race window, if data is received on the newsock, we will observe use-after-free report in svc_tcp_listen_data_ready(). Reproduce by two tasks: 1. while :; do rpc.nfsd 0 ; rpc.nfsd; done 2. while :; do echo "" \| ncat -4 127.0.0.1 2049 ; done KASAN report: ================================================================== BUG: KASAN: slab-use-after-free in svc_tcp_listen_data_ready+0x1cf/0x1f0 [sunrpc] Read of size 8 at addr ffff888139d96228 by task nc/102553 CPU: 7 PID: 102553 Comm: nc Not tainted 6.3.0+ #18 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020 Call Trace: <IRQ> dump_stack_lvl+0x33/0x50 print_address_description.constprop.0+0x27/0x310 print_report+0x3e/0x70 kasan_report+0xae/0xe0 svc_tcp_listen_data_ready+0x1cf/0x1f0 [sunrpc] tcp_data_queue+0x9f4/0x20e0 tcp_rcv_established+0x666/0x1f60 tcp_v4_do_rcv+0x51c/0x850 tcp_v4_rcv+0x23fc/0x2e80 ip_protocol_deliver_rcu+0x62/0x300 ip_local_deliver_finish+0x267/0x350 ip_local_deliver+0x18b/0x2d0 ip_rcv+0x2fb/0x370 __netif_receive_skb_one_core+0x166/0x1b0 process_backlog+0x24c/0x5e0 __napi_poll+0xa2/0x500 net_rx_action+0x854/0xc90 __do_softirq+0x1bb/0x5de do_softirq+0xcb/0x100 </IRQ> <TASK> ... </TASK> Allocated by task 102371: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 __kasan_kmalloc+0x7b/0x90 svc_setup_socket+0x52/0x4f0 [sunrpc] svc_addsock+0x20d/0x400 [sunrpc] __write_ports_addfd+0x209/0x390 [nfsd] write_ports+0x239/0x2c0 [nfsd] nfsctl_transaction_write+0xac/0x110 [nfsd] vfs_write+0x1c3/0xae0 ksys_write+0xed/0x1c0 do_syscall_64+0x38/0
Added	Reference	kernel.org https://git.kernel.org/stable/c/42725e5c1b181b757ba11d804443922982334d9b [No types assigned]
Added	Reference	kernel.org https://git.kernel.org/stable/c/7e1f989055622fd086c5dfb291fc72adf5660b6f [No types assigned]
Added	Reference	kernel.org https://git.kernel.org/stable/c/c7b8c2d06e437639694abe76978e915cfb73f428 [No types assigned]
Added	Reference	kernel.org https://git.kernel.org/stable/c/cd5ec3ee52ce4b7e283cc11facfa420c297c8065 [No types assigned]
Added	Reference	kernel.org https://git.kernel.org/stable/c/dfc896c4a75cb8cd7cb2dfd9b469cf1e3f004254 [No types assigned]
Added	Reference	kernel.org https://git.kernel.org/stable/c/ef047411887ff0845afd642d6a687819308e1a4e [No types assigned]
Added	Reference	kernel.org https://git.kernel.org/stable/c/fbf4ace39b2e4f3833236afbb2336edbafd75eee [No types assigned]
Added	Reference	kernel.org https://git.kernel.org/stable/c/fc80fc2d4e39137869da3150ee169b40bf879287 [No types assigned]

Quick Info

CVE Dictionary Entry:
CVE-2023-52885
NVD Published Date:
07/14/2024
NVD Last Modified:
11/21/2024
Source:
kernel.org

You are viewing this page in an unauthorized frame window.

Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2023-52885 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by CVE 11/21/2024 3:40:48 AM

Initial Analysis by NIST 8/21/2024 1:03:01 PM

New CVE Received from kernel.org 7/14/2024 4:15:01 AM

Quick Info