CyberSecBulletin
CVE-2024-46724NVD status: Modified

Linux: Out-of-bounds Read

Published Updated By the CyberSecBulletin desk

CVE-2024-46724 is a high-severity out-of-bounds read vulnerability in Linux, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists versions 725b728cc0c8c5fafdfb51cb0937870d33a40fa4, 45f7b02afc464c208e8f56bcbc672ef5c364c815, 32915dc909ff502823babfe07d5416c5b6e8a8b1 as the first without the flaw, so updating Linux to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.24% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Linux to 725b728cc0c8c5fafdfb51cb0937870d33a40fa4 or 45f7b02afc464c208e8f56bcbc672ef5c364c815 or 32915dc909ff502823babfe07d5416c5b6e8a8b1 or f9267972490f9fcffe146e79828e97acc0da588c, whichever matches your release line, or a later version.
  2. Update Linux Kernel to 5.10.226 or 5.15.167 or 6.1.109 or 6.6.50, whichever matches your release line, or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
LinuxLinuxd38ceaf99ed015f2a0b9af3499791bd3a3daae21 up to, but not including, 725b728cc0c8c5fafdfb51cb0937870d33a40fa4; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 up to, but not including, 45f7b02afc464c208e8f56bcbc672ef5c364c815; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 up to, but not including, 32915dc909ff502823babfe07d5416c5b6e8a8b1; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 up to, but not including, f9267972490f9fcffe146e79828e97acc0da588c; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 up to, but not including, db7a86676fd624768a5d907faf34ad7bb4ff25f4; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 up to, but not including, d768394fa99467bcf2703bde74ddc96eeb0b71fa; 4.2725b728cc0c8c5fafdfb51cb0937870d33a40fa4, 45f7b02afc464c208e8f56bcbc672ef5c364c815, 32915dc909ff502823babfe07d5416c5b6e8a8b1, f9267972490f9fcffe146e79828e97acc0da588c, db7a86676fd624768a5d907faf34ad7bb4ff25f4, d768394fa99467bcf2703bde74ddc96eeb0b71fa
LinuxLinux Kernelbefore 5.10.226; 5.11 up to, but not including, 5.15.167; 5.16 up to, but not including, 6.1.109; 6.2 up to, but not including, 6.6.50; 6.7 up to, but not including, 6.10.95.10.226, 5.15.167, 6.1.109, 6.6.50, 6.10.9

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
LocalThe attacker needs local access or must trick a user into running something.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H. Scored by NVD.

Official description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix out-of-bounds read of df_v1_7_channel_number Check the fb_channel_number range to avoid the array out-of-bounds read error

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

How developers prevent this class of flaw

  • Use a language that provides appropriate memory abstractions.

More Out-of-bounds Read vulnerabilities (CWE-125)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Recent Out-of-bounds Read vulnerabilities

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