CyberSecBulletin
CVE-2023-52602NVD status: Analyzed

Linux: Uncontrolled Resource Consumption

Published Updated By the CyberSecBulletin desk

CVE-2023-52602 is a high-severity uncontrolled resource consumption vulnerability in Linux, with a CVSS 3.1 base score of 7.8 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 ce8bc22e948634a5c0a3fa58a179177d0e3f3950, 1b9d6828589d57f94a23fb1c46112cda39d7efdb, 1c40ca3d39d769931b28295b3145c25f1decf5a6 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 0.25% 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 ce8bc22e948634a5c0a3fa58a179177d0e3f3950 or 1b9d6828589d57f94a23fb1c46112cda39d7efdb or 1c40ca3d39d769931b28295b3145c25f1decf5a6 or 6c6a96c3d74df185ee344977d46944d6f33bb4dd, whichever matches your release line, or a later version.
  2. Update linux_kernel to ce8bc22e9486 or 1b9d6828589d or 1c40ca3d39d7 or 6c6a96c3d74d, whichever matches your release line, or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 up to, but not including, ce8bc22e948634a5c0a3fa58a179177d0e3f3950; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 up to, but not including, 1b9d6828589d57f94a23fb1c46112cda39d7efdb; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 up to, but not including, 1c40ca3d39d769931b28295b3145c25f1decf5a6; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 up to, but not including, 6c6a96c3d74df185ee344977d46944d6f33bb4dd; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 up to, but not including, cab0c265ba182fd266c2aa3c69d7e40640a7f612; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 up to, but not including, 7110650b85dd2f1cee819acd1345a9013a1a62f7; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 up to, but not including, bff9d4078a232c01e42e9377d005fb2f4d31a472; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 up to, but not including, fa5492ee89463a7590a1449358002ff7ef63529f; and 1 more rangesce8bc22e948634a5c0a3fa58a179177d0e3f3950, 1b9d6828589d57f94a23fb1c46112cda39d7efdb, 1c40ca3d39d769931b28295b3145c25f1decf5a6, 6c6a96c3d74df185ee344977d46944d6f33bb4dd, cab0c265ba182fd266c2aa3c69d7e40640a7f612, 7110650b85dd2f1cee819acd1345a9013a1a62f7
Linuxlinux_kernel1da177e4c3f4 up to, but not including, ce8bc22e9486; 1da177e4c3f4 up to, but not including, 1b9d6828589d; 1da177e4c3f4 up to, but not including, 1c40ca3d39d7; 1da177e4c3f4 up to, but not including, 6c6a96c3d74d; 1da177e4c3f4 up to, but not including, cab0c265ba18; 1da177e4c3f4 up to, but not including, 7110650b85dd; 1da177e4c3f4 up to, but not including, bff9d4078a23; 1da177e4c3f4 up to, but not including, fa5492ee8946ce8bc22e9486, 1b9d6828589d, 1c40ca3d39d7, 6c6a96c3d74d, cab0c265ba18, 7110650b85dd
DebianDebian Linux10.0Not stated

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
HighData or code can be modified at will.
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:H/A:H. Scored by CISA (ADP).

Official description

In the Linux kernel, the following vulnerability has been resolved: jfs: fix slab-out-of-bounds Read in dtSearch Currently while searching for current page in the sorted entry table of the page there is a out of bound access. Added a bound check to fix the error. Dave: Set return code to -EIO

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

The underlying weakness: Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource.

How developers prevent this class of flaw

  • Ensure that protocols have specific limits of scale placed on them.
  • Ensure that all failures in resource allocation place the system into a safe posture.

More Uncontrolled Resource Consumption vulnerabilities (CWE-400)

Timeline

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

References

Recent Uncontrolled Resource Consumption vulnerabilities

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