CVE - CVE-2025-21742

CVE-ID
CVE-2025-21742	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: usbnet: ipheth: use static NDP16 location in URB Original code allowed for the start of NDP16 to be anywhere within the URB based on the `wNdpIndex` value in NTH16. Only the start position of NDP16 was checked, so it was possible for even the fixed-length part of NDP16 to extend past the end of URB, leading to an out-of-bounds read. On iOS devices, the NDP16 header always directly follows NTH16. Rely on and check for this specific format. This, along with NCM-specific minimal URB length check that already exists, will ensure that the fixed-length part of NDP16 plus a set amount of DPEs fit within the URB. Note that this commit alone does not fully address the OoB read. The limit on the amount of DPEs needs to be enforced separately.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/2b619445dcb6dab97d8ed033fb57225aca1288c4 URL:https://git.kernel.org/stable/c/2b619445dcb6dab97d8ed033fb57225aca1288c4 MISC:https://git.kernel.org/stable/c/86586dcb75cb8fd062a518aca8ee667938b91efb URL:https://git.kernel.org/stable/c/86586dcb75cb8fd062a518aca8ee667938b91efb MISC:https://git.kernel.org/stable/c/8fb062178e1ce180e2cfdc9abc83a1b9fea381ca URL:https://git.kernel.org/stable/c/8fb062178e1ce180e2cfdc9abc83a1b9fea381ca MISC:https://git.kernel.org/stable/c/cf1ac7f7cf601ac31d1580559c002b5e37b733b7 URL:https://git.kernel.org/stable/c/cf1ac7f7cf601ac31d1580559c002b5e37b733b7
Assigning CNA
kernel.org
Date Record Created
20241229	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20241229)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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