CVE-2022-48805

High

In the Linux kernel, the following vulnerability has been resolved: net: usb: ax88179_178a: Fix out-of-bounds accesses in RX fixup ax88179_rx_fixup() contains several out-of-bounds accesses that can be triggered by a malicious (or defective) USB device, in particular: - The metadata array (hdr_off..hdr_off+2*pkt_cnt) can be out of bounds, causing OOB reads and (on big-endian systems) OOB endianness flips. - A packet can overlap the metadata array, causing a later OOB endianness flip to corrupt data used by a cloned SKB that has already been handed off into the network stack. - A packet SKB can be constructed whose tail is far beyond its end, causing out-of-bounds heap data to be considered part of the SKB's data. I have tested that this can be used by a malicious USB device to send a bogus ICMPv6 Echo Request and receive an ICMPv6 Echo Reply in response that contains random kernel heap data. It's probably also possible to get OOB writes from this on a little-endian system somehow - maybe by triggering skb_cow() via IP options processing -, but I haven't tested that.

Package Linux Kernel
Published 2024-07-16
Last modified 2025-03-06
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

7.8

out of 10
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-125

CVE-2022-48805 is a Out-of-bounds Read vulnerability

What is Out-of-bounds Read?

The product reads data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

Affected versions

Linux kernel versions 3.9 and later are affected. Fixed in 4.9.303, 4.14.268, 4.19.231, 5.4.180, 5.10.101, 5.15.24, 5.16.10, 5.17 and their respective stable series.

Affected from
≥ 3.9
Fixed in
✓ 4.9.303 4.9.x ✓ 4.14.268 4.14.x ✓ 4.19.231 4.19.x ✓ 5.4.180 5.4.x ✓ 5.10.101 5.10.x ✓ 5.15.24 5.15.x ✓ 5.16.10 5.16.x ✓ 5.17

References

8 total
Showing 5 of 8 references View all on NVD

Frequently asked questions

  • What is CVE-2022-48805?

    CVE-2022-48805 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . It affects Linux kernel versions from 3.9 onward and has been patched in 4.9.303, 4.14.268, 4.19.231 and others. CVE-2022-48805 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2022-48805?

    CVE-2022-48805 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H .

  • Is there a patch available for CVE-2022-48805?

    Yes. CVE-2022-48805 has been patched. Fixed versions include 4.9.303, 4.14.268, 4.19.231 and others. If you are running Linux kernel 3.9 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2022-48805 actively exploited?

    No. CVE-2022-48805 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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