Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2024-26749

Severity CVSS v4.0:
Pending analysis
Type:
CWE-416 Use After Free
Publication date:
03/04/2024
Last modified:
14/01/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> usb: cdns3: fixed memory use after free at cdns3_gadget_ep_disable()<br /> <br /> ...<br /> cdns3_gadget_ep_free_request(&amp;priv_ep-&gt;endpoint, &amp;priv_req-&gt;request);<br /> list_del_init(&amp;priv_req-&gt;list);<br /> ...<br /> <br /> &amp;#39;priv_req&amp;#39; actually free at cdns3_gadget_ep_free_request(). But<br /> list_del_init() use priv_req-&gt;list after it.<br /> <br /> [ 1542.642868][ T534] BUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xd4<br /> [ 1542.642868][ T534]<br /> [ 1542.653162][ T534] Use-after-free read at 0x000000009ed0ba99 (in kfence-#3):<br /> [ 1542.660311][ T534] __list_del_entry_valid+0x10/0xd4<br /> [ 1542.665375][ T534] cdns3_gadget_ep_disable+0x1f8/0x388 [cdns3]<br /> [ 1542.671571][ T534] usb_ep_disable+0x44/0xe4<br /> [ 1542.675948][ T534] ffs_func_eps_disable+0x64/0xc8<br /> [ 1542.680839][ T534] ffs_func_set_alt+0x74/0x368<br /> [ 1542.685478][ T534] ffs_func_disable+0x18/0x28<br /> <br /> Move list_del_init() before cdns3_gadget_ep_free_request() to resolve this<br /> problem.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.4 (including) 5.4.270 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.5 (including) 5.10.211 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.15.150 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 6.1.80 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.19 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.7.7 (excluding)
cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc5:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools