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CVE-2025-21742— usbnet: ipheth: use static NDP16 location in URB

AI Predicted 4.3 Difficulty: Easy EPSS 0.01% · P1

Affected Version Matrix 10

VendorProductVersion RangeStatus
LinuxLinuxa2d274c62e44b1995c170595db3865c6fe701226< 8fb062178e1ce180e2cfdc9abc83a1b9fea381caaffected
a2d274c62e44b1995c170595db3865c6fe701226< cf1ac7f7cf601ac31d1580559c002b5e37b733b7affected
a2d274c62e44b1995c170595db3865c6fe701226< 2b619445dcb6dab97d8ed033fb57225aca1288c4affected
a2d274c62e44b1995c170595db3865c6fe701226< 86586dcb75cb8fd062a518aca8ee667938b91efbaffected
6.5affected
< 6.5unaffected
6.6.78≤ 6.6.*unaffected
6.12.14≤ 6.12.*unaffected
… +2 more rows
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I. Basic Information for CVE-2025-21742

Vulnerability Information
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Vulnerability Title
usbnet: ipheth: use static NDP16 location in URB
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ipheth驱动中NDP16位置未固定，可能导致越界读取。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux a2d274c62e44b1995c170595db3865c6fe701226 ~ 8fb062178e1ce180e2cfdc9abc83a1b9fea381ca -
LinuxLinux 6.5 -

II. Public POCs for CVE-2025-21742

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III. Intelligence Information for CVE-2025-21742

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Patches & Fixes for CVE-2025-21742 (4)

Same Patch Batch · Linux · 2025-02-27 · 177 CVEs total

CVE-2025-217567.8 HIGHvsock: Keep the binding until socket destruction
CVE-2025-21773can: etas_es58x: fix potential NULL pointer dereference on udev->serial
CVE-2025-21763neighbour: use RCU protection in __neigh_notify()
CVE-2025-21762arp: use RCU protection in arp_xmit()
CVE-2025-21764ndisc: use RCU protection in ndisc_alloc_skb()
CVE-2025-21765ipv6: use RCU protection in ip6_default_advmss()
CVE-2025-21766ipv4: use RCU protection in __ip_rt_update_pmtu()
CVE-2025-21767clocksource: Use migrate_disable() to avoid calling get_random_u32() in atomic context
CVE-2025-21769ptp: vmclock: Add .owner to vmclock_miscdev_fops
CVE-2025-21768net: ipv6: fix dst ref loops in rpl, seg6 and ioam6 lwtunnels
CVE-2025-21771sched_ext: Fix incorrect autogroup migration detection
CVE-2025-21770iommu: Fix potential memory leak in iopf_queue_remove_device()
CVE-2025-21777ring-buffer: Validate the persistent meta data subbuf array
CVE-2025-21783gpiolib: Fix crash on error in gpiochip_get_ngpios()
CVE-2025-21781batman-adv: fix panic during interface removal
CVE-2025-21780drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table()
CVE-2025-21779KVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel
CVE-2025-21778tracing: Do not allow mmap() of persistent ring buffer
CVE-2025-21774can: rockchip: rkcanfd_handle_rx_fifo_overflow_int(): bail out if skb cannot be allocated
CVE-2025-21772partitions: mac: fix handling of bogus partition table

Showing top 20 of 177 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-21742

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