CVE-2022-48651
Linux IPvlan Out-of-Bounds Buffer Access Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header If an AF_PACKET socket is used to send packets through ipvlan and the default xmit function of the AF_PACKET socket is changed from dev_queue_xmit() to packet_direct_xmit() via setsockopt() with the option name of PACKET_QDISC_BYPASS, the skb->mac_header may not be reset and remains as the initial value of 65535, this may trigger slab-out-of-bounds bugs as following: ================================================================= UG: KASAN: slab-out-of-bounds in ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan] PU: 2 PID: 1768 Comm: raw_send Kdump: loaded Not tainted 6.0.0-rc4+ #6 ardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 all Trace: print_address_description.constprop.0+0x1d/0x160 print_report.cold+0x4f/0x112 kasan_report+0xa3/0x130 ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan] ipvlan_start_xmit+0x29/0xa0 [ipvlan] __dev_direct_xmit+0x2e2/0x380 packet_direct_xmit+0x22/0x60 packet_snd+0x7c9/0xc40 sock_sendmsg+0x9a/0xa0 __sys_sendto+0x18a/0x230 __x64_sys_sendto+0x74/0x90 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The root cause is: 1. packet_snd() only reset skb->mac_header when sock->type is SOCK_RAW and skb->protocol is not specified as in packet_parse_headers() 2. packet_direct_xmit() doesn't reset skb->mac_header as dev_queue_xmit() In this case, skb->mac_header is 65535 when ipvlan_xmit_mode_l2() is called. So when ipvlan_xmit_mode_l2() gets mac header with eth_hdr() which use "skb->head + skb->mac_header", out-of-bound access occurs. This patch replaces eth_hdr() with skb_eth_hdr() in ipvlan_xmit_mode_l2() and reset mac header in multicast to solve this out-of-bound bug.
INFO
Published Date :
April 28, 2024, 1:15 p.m.
Last Modified :
March 20, 2025, 9:33 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.2
Exploitability Score :
2.5
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-48651
.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-48651
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-48651
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 20, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.0:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.19 up to (excluding) 4.9.330 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.295 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.260 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.215 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.146 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.71 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.19.12 Added Reference Type CVE: https://git.kernel.org/stable/c/25efdbe5fe542c3063d1948cc4e98abcb57621ca Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/25efdbe5fe542c3063d1948cc4e98abcb57621ca Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/346e94aa4a99378592c46d6a34c72703a32bd5be Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/346e94aa4a99378592c46d6a34c72703a32bd5be Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/81225b2ea161af48e093f58e8dfee6d705b16af4 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/81225b2ea161af48e093f58e8dfee6d705b16af4 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/8d06006c7eb75587d986da46c48ba9274f94e8e7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8d06006c7eb75587d986da46c48ba9274f94e8e7 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/ab4a733874ead120691e8038272d22f8444d3638 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ab4a733874ead120691e8038272d22f8444d3638 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/b583e6b25bf9321c91154f6c78d2173ef12c4241 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b583e6b25bf9321c91154f6c78d2173ef12c4241 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/bffcdade259c05ab3436b5fab711612093c275ef Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/bffcdade259c05ab3436b5fab711612093c275ef Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/e2b46cd5796f083e452fbc624f65b80328b0c1a4 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e2b46cd5796f083e452fbc624f65b80328b0c1a4 Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/25efdbe5fe542c3063d1948cc4e98abcb57621ca Added Reference https://git.kernel.org/stable/c/346e94aa4a99378592c46d6a34c72703a32bd5be Added Reference https://git.kernel.org/stable/c/81225b2ea161af48e093f58e8dfee6d705b16af4 Added Reference https://git.kernel.org/stable/c/8d06006c7eb75587d986da46c48ba9274f94e8e7 Added Reference https://git.kernel.org/stable/c/ab4a733874ead120691e8038272d22f8444d3638 Added Reference https://git.kernel.org/stable/c/b583e6b25bf9321c91154f6c78d2173ef12c4241 Added Reference https://git.kernel.org/stable/c/bffcdade259c05ab3436b5fab711612093c275ef Added Reference https://git.kernel.org/stable/c/e2b46cd5796f083e452fbc624f65b80328b0c1a4 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 03, 2024
Action Type Old Value New Value Added CWE CISA-ADP CWE-125 Added CVSS V3.1 CISA-ADP AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Apr. 28, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header If an AF_PACKET socket is used to send packets through ipvlan and the default xmit function of the AF_PACKET socket is changed from dev_queue_xmit() to packet_direct_xmit() via setsockopt() with the option name of PACKET_QDISC_BYPASS, the skb->mac_header may not be reset and remains as the initial value of 65535, this may trigger slab-out-of-bounds bugs as following: ================================================================= UG: KASAN: slab-out-of-bounds in ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan] PU: 2 PID: 1768 Comm: raw_send Kdump: loaded Not tainted 6.0.0-rc4+ #6 ardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 all Trace: print_address_description.constprop.0+0x1d/0x160 print_report.cold+0x4f/0x112 kasan_report+0xa3/0x130 ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan] ipvlan_start_xmit+0x29/0xa0 [ipvlan] __dev_direct_xmit+0x2e2/0x380 packet_direct_xmit+0x22/0x60 packet_snd+0x7c9/0xc40 sock_sendmsg+0x9a/0xa0 __sys_sendto+0x18a/0x230 __x64_sys_sendto+0x74/0x90 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The root cause is: 1. packet_snd() only reset skb->mac_header when sock->type is SOCK_RAW and skb->protocol is not specified as in packet_parse_headers() 2. packet_direct_xmit() doesn't reset skb->mac_header as dev_queue_xmit() In this case, skb->mac_header is 65535 when ipvlan_xmit_mode_l2() is called. So when ipvlan_xmit_mode_l2() gets mac header with eth_hdr() which use "skb->head + skb->mac_header", out-of-bound access occurs. This patch replaces eth_hdr() with skb_eth_hdr() in ipvlan_xmit_mode_l2() and reset mac header in multicast to solve this out-of-bound bug. Added Reference kernel.org https://git.kernel.org/stable/c/e2b46cd5796f083e452fbc624f65b80328b0c1a4 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/25efdbe5fe542c3063d1948cc4e98abcb57621ca [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/bffcdade259c05ab3436b5fab711612093c275ef [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/346e94aa4a99378592c46d6a34c72703a32bd5be [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ab4a733874ead120691e8038272d22f8444d3638 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8d06006c7eb75587d986da46c48ba9274f94e8e7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b583e6b25bf9321c91154f6c78d2173ef12c4241 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/81225b2ea161af48e093f58e8dfee6d705b16af4 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-48651
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-48651
weaknesses.