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CVE-2023-52602· NVD / CVE Program· CNA Linux

jfs: fix slab-out-of-bounds Read in dtSearch

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.24% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 1b9d6828589d57f94a23fb1c46112cda39d7efdb, 1c40ca3d39d769931b28295b3145c25f1decf5a6, 6c6a96c3d74df185ee344977d46944d6f33bb4dd.
  • Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 1b9d6828589d57f94a23fb1c46112cda39d7efdb, 1c40ca3d39d769931b28295b3145c25f1decf5a6, 6c6a96c3d74df185ee344977d46944d6f33bb4dd or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Mar 6, 2024
Updated
Aug 5, 2026
EPSS
0.2% · 15th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Linux
7.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-52602

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel
debiandebian linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux10.0
  • linux linux kernel4.20 and later · before 5.4.269
  • linux linux kernel5.5 and later · before 5.10.210
  • linux linux kernel5.11 and later · before 5.15.149
  • linux linux kernelbefore 4.19.307
  • linux linux kernel6.2 and later · before 6.6.16
  • linux linux kernel6.7 and later · before 6.7.4
  • linux linux kernel5.16 and later · before 6.1.77

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 2.6.12affected
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before ce8bc22e948634a5c0a3fa58a179177d0e3f3950affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 1b9d6828589d57f94a23fb1c46112cda39d7efdbaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 1c40ca3d39d769931b28295b3145c25f1decf5a6affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 6c6a96c3d74df185ee344977d46944d6f33bb4ddaffected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before cab0c265ba182fd266c2aa3c69d7e40640a7f612affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 7110650b85dd2f1cee819acd1345a9013a1a62f7affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before bff9d4078a232c01e42e9377d005fb2f4d31a472affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before fa5492ee89463a7590a1449358002ff7ef63529faffected · git
    • before 2.6.12not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.82-16.1.82-1
Debian:13linuxbefore 6.7.7-16.7.7-1

Other highest-scoring records for the same primary product.

  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now
  • CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV
    77This week
  • CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
    77This week
  • CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV
    77This week

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux1b9d6828589d57f94a23fb1c46112cda39d7efdbVendor (CNA)
Linux Linux1c40ca3d39d769931b28295b3145c25f1decf5a6Vendor (CNA)
Linux Linux6c6a96c3d74df185ee344977d46944d6f33bb4ddVendor (CNA)
Linux Linux7110650b85dd2f1cee819acd1345a9013a1a62f7Vendor (CNA)
Linux Linuxbff9d4078a232c01e42e9377d005fb2f4d31a472Vendor (CNA)
Linux Linuxcab0c265ba182fd266c2aa3c69d7e40640a7f612Vendor (CNA)
Linux Linuxce8bc22e948634a5c0a3fa58a179177d0e3f3950Vendor (CNA)
Linux Linuxfa5492ee89463a7590a1449358002ff7ef63529fVendor (CNA)
debian:linux6.1.82-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-39462111 days apartclk: bcm: dvp: Assign ->num before accessing ->hws
    39Monitor
  • CVE-2021-4440111 days apartx86/xen: Drop USERGS_SYSRET64 paravirt call
    35Monitor
  • CVE-2021-4731376 days apartcpufreq: CPPC: Fix potential memleak in cppc_cpufreq_cpu_init
    33Monitor
  • CVE-2021-470237 days apartnet: marvell: prestera: fix port event handling on init
    32Monitor
  • CVE-2024-38616105 days apartwifi: carl9170: re-fix fortified-memset warning
    32Monitor
  • CVE-2021-470107 days apartnet: Only allow init netns to set default tcp cong to a restricted algo
    31Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
function expand(node) {  return node.children.map(expand);}

Fixed

ts
const MAX_DEPTH = 32;function expand(node, depth = 0) {  if (depth > MAX_DEPTH) throw new Error("too deep");  return node.children.map((c) => expand(c, depth + 1));}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

All records